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iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 1 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice . novemb er 2016 IQS621 datasheet combination sensor with ambient light sensing (als), capacitive proximity/touch, hall - effect sensor & inductive sensing capabilities the IQS621 proxfusion ? ic is a multifunctional, ambient light sensing (als), capacit ive, hall - effect & inductiv e sensor designed for applications where any or all of the technologies may be required. the IQS621 is an ultra - low power solution designed for short or long term acti vations through any of the sensing channels. the IQS621 is fully i 2 c compatible. features ? unique combination of sensing technologies: o capacitive sensing o ambient light sensing (als) o hall - effect sensing o inductive sensing ? capacitive sensing o 2pf to 200pf external capacitive load capability o fully adjustable sensing options ? ambient light sensing (als) o absolute lux output o human eye response compensated o 4 - bit als range output (0 - 10) o dual threshold detection for day/night indication with hysteresis ? hall - effect sensing o no external components required o dual direction hall switch sensor o 2 level detection (widely variable) o detection range 1mt C 100mt ? inductive sensing o metal sensing ui with 2 level variable detection and hysteresis o only external sense coil required (pcb trace) ? multiple integrated ui options based on years of experience in sensing on fixed and mobile platforms: o proximity / touch o proximity wake - up ? a utomatic t uning i mplementation ( ati ) C performance enhancement (10bit) ? minimal external components ? standard i 2 c interface (polling with sub 1ms clock stretching) ? optional rdy indication for event mode operation ? low power consumption: 30 0ua (50 hz response , all technologies in use ) , 2.5 ua ( low power mode, zoom to scanning mode with wake - up) ? event or streaming mode ? supply voltage: 1.8v to 3.3 v ? low profile uolg - 2.8 x 2.5 x 0.6 - 9 - pin package applications ? mobile electronics (phones/tablets) ? home automation & lighting control ? white goods and appliances ? wearable devices ? human interface devices ? aftermarket automotive 1 1 the part is not automotive qualified. available packages t a uolg - 2.8 x 2.5 x 0.6 C - 40 c to 85 c IQS621 uolg 2.8 x 2.5 x 0.6 9 - pin represent ations only
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 2 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 table of contents list of abbreviation s ................................ ................................ ................................ ................................ ............. 4 1 introduction ................................ ................................ ................................ ................................ .................. 5 1.1 p rox f usion ? ................................ ................................ ................................ ................................ ...................... 5 1.2 p ackaging and p in - o ut ................................ ................................ ................................ ................................ ....... 5 1.3 r eference schematic ................................ ................................ ................................ ................................ ........... 6 1.4 s ensor channel combin ations ................................ ................................ ................................ ............................. 7 2 capacitive sensing ................................ ................................ ................................ ................................ ......... 8 2.1 i ntr oduction to p rox s ense ? ................................ ................................ ................................ ................................ 8 2.2 c hannel specification s ................................ ................................ ................................ ................................ ........ 8 2.3 h ardware configuratio n ................................ ................................ ................................ ................................ .... 9 2. 4 s oftware configuratio n ................................ ................................ ................................ ................................ ... 10 2.5 s ensor data output an d flags ................................ ................................ ................................ ........................... 10 3 inductive sensing ................................ ................................ ................................ ................................ .......... 11 3.1 i ntroduction to induc tive sensing ................................ ................................ ................................ ..................... 11 3.2 c hannel specification s ................................ ................................ ................................ ................................ ...... 11 3.3 h ardware configuratio n ................................ ................................ ................................ ................................ .. 12 3.4 s oftware configuratio n ................................ ................................ ................................ ................................ ... 12 3. 5 s ensor data output an d flags ................................ ................................ ................................ ........................... 13 4 ambient light sensin g (als) ................................ ................................ ................................ ......................... 14 4.1 i ntroduction to ambie nt light sensing ................................ ................................ ................................ .............. 14 4.2 c hannel specification s ................................ ................................ ................................ ................................ ...... 14 4.3 h ardware configuratio n ................................ ................................ ................................ ................................ .. 14 4.4 s oftware configuratio n ................................ ................................ ................................ ................................ ... 14 4. 5 s ensor data output an d flags ................................ ................................ ................................ ........................... 15 5 hall - effect sensing ................................ ................................ ................................ ................................ ....... 16 5.1 i ntroduction to h all - effect sensing ................................ ................................ ................................ ................. 16 5.2 c hannel specification s ................................ ................................ ................................ ................................ ...... 16 5.3 h ardware configuratio n ................................ ................................ ................................ ................................ .. 17 5.4 s oftware configuratio n ................................ ................................ ................................ ................................ ... 18 5. 5 s ensor data output an d flags ................................ ................................ ................................ ........................... 19 6 temperature monitori ng ................................ ................................ ................................ ........................... 20 6.1 i ntroduction to tempe rature monitoring ................................ ................................ ................................ ......... 20 6.2 c hannel specification s ................................ ................................ ................................ ................................ ...... 20 6.3 h ardware configuratio n ................................ ................................ ................................ ................................ .. 20 6.4 s oftware configuratio n ................................ ................................ ................................ ................................ ... 20 6. 5 s ensor data output an d flags ................................ ................................ ................................ ........................... 21 7 device clock, power management and mode operation ................................ ................................ ...... 22 7.1 d evice main oscillato r ................................ ................................ ................................ ................................ ...... 22 7. 2 d evice modes ................................ ................................ ................................ ................................ .................... 22 7.3 r eport rates ................................ ................................ ................................ ................................ ..................... 23 7.4 s ystem reset ................................ ................................ ................................ ................................ ..................... 23 8 communication ................................ ................................ ................................ ................................ ............ 24 8.1 i 2 c module specification ................................ ................................ ................................ ................................ .... 24 8.2 d evice address and su b - addresses ................................ ................................ ................................ ..................... 24 8.3 a dditional otp options ................................ ................................ ................................ ................................ .... 24
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 3 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 8.4 r ecommended communica tion and runtime flo w diagram ................................ ................................ ................ 25 9 memory map ................................ ................................ ................................ ................................ .................. 26 9.2 d evice i nformation d ata ................................ ................................ ................................ ................................ .. 28 9.3 f lags and user interf ace data ................................ ................................ ................................ ........................... 29 9.4 c hannel counts ( raw data ) ................................ ................................ ................................ ............................... 34 9.5 lta values ( filtered data ) ................................ ................................ ................................ ................................ . 34 9.6 p rox f usion sensor setting s block 1 ................................ ................................ ................................ ................... 35 9.7 p rox f usion ui settings ................................ ................................ ................................ ................................ ..... 41 9.8 m etal detect ui settings ................................ ................................ ................................ ................................ ... 42 9.9 als sensor settings ................................ ................................ ................................ ................................ ........... 44 9.10 als ui settings ................................ ................................ ................................ ................................ ................. 46 9.11 h al l - effect sensor settin gs ................................ ................................ ................................ ............................... 47 9.12 h all - effect switch ui settings ................................ ................................ ................................ ........................... 49 9.13 t emperature monitorin g ui settings ................................ ................................ ................................ ................. 5 0 9.14 d evice and power mode settings ................................ ................................ ................................ ....................... 52 10 electrical character istics ................................ ................................ ................................ .......................... 56 10.1 a bsolute m aximum s pecifications ................................ ................................ ................................ ..................... 56 10.2 p ower o n - reset /b rown out ................................ ................................ ................................ ............................. 56 10.3 d igital input / output trigger level s ................................ ................................ ................................ ................... 56 10.4 c urrent consumptions ................................ ................................ ................................ ................................ ..... 57 10.5 als specifications ................................ ................................ ................................ ................................ ............. 59 10.6 c apacitive loading li mits ................................ ................................ ................................ ................................ ... 60 10.7 h all - effect measurement l imits ................................ ................................ ................................ ........................ 60 10.8 i nductive measurement limits ................................ ................................ ................................ ........................... 60 10.9 t emperature measureme nt limits ................................ ................................ ................................ ...................... 60 11 package information ................................ ................................ ................................ ................................ .. 61 11.1 uolg - 2.8 x 2.5 x 0.6 C 9 - pin package and foot print specifications ................................ ................................ ..... 61 11.2 d evice marking and or dering information ................................ ................................ ................................ ........ 62 11.3 t ape and reel specifi cation ................................ ................................ ................................ ................................ 63 11.4 msl l evel ................................ ................................ ................................ ................................ ......................... 64 12 datasheet revisions ................................ ................................ ................................ ................................ ..... 65 12.1 r evision history ................................ ................................ ................................ ................................ ................ 65 12.2 e rrata ................................ ................................ ................................ ................................ .............................. 65 appendix a. contact information ................................ ................................ ................................ ..................... 66
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 4 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 list of abbreviations ati C automatic tuning implementation lta C long term average als C ambient light sensing ui C user interface ac C alternating current dsp C digital signal processing rx C receiving electrode l tx C transmitting electrode cs C sampling capacitor np C normal power lp C low power ulp C ultra low power ack C i 2 c acknowledge condition nack C i 2 c not acknowledge condition
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 5 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 1 introduction 1.1 proxfusion ? the proxfusion ? sensor series provide all of the proven proxsense ? engine capabilities with additional sensors types. a combined sensor solution is available within a single platform . 1.2 packaging and pin - out figure 1.1 iqs62 1 pin - out ( uolg - 2.8 x 2.5 x 0.6 C 9 - pin package ; device markings may differ ) table 1.1 pin - out descri p tion IQS621 in uolg - 2.8 x 2.5 x 0.6 C 1 rx0 receiving electrode connect to conductive area intended for sensor receiving 2 rx1 receiving electrode connect to conductive area intended for sensor receiving 3 vreg regulator output requires external capacitor 4 ltx transmitter electrode connect to conductive area intended for sensor transmitting 5 rdy digital input / output rdy (i 2 c ready interrupt signal) 6 sda digital input / output sda (i 2 c data signal) 7 scl digital input / output scl (i 2 c clock signal) 8 vddhi supply input supply: 1. 8v C 3.3 v 9 vss signal gnd common ground reference vddhi scl sda rdy vss ltx vreg rx1 rx0 IQS621
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 6 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 1.3 reference schematic figure 1.2 IQS621 reference schematic
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 7 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 1.4 sensor channel combinations the t able below summarizes the IQS621 s sensor and channel associations. table 1.2 sensor - channel allocation sensor / ui type ch0 ch1 ch2 ch3 ch4 ch5 ch6 capacitive self c apacitive o o inductive mutual inductive ? als ambient light sensing ? ? hall - effect hall - effect switch ui ? positive ? negative temperature temperature trip and output ? key: o - optional implementation ? - fixed use for ui
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 8 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 2 capacitive sensing 2.1 introduction to proxsense ? building on the previous successes from the proxsense ? range of capacitive sensors, the same fundamental sensor engine have been implemented in the proxfusion ? series. the capacitive sensing capabilities of the IQS621 include: ? self capacitive sensing. ? maximum of 2 capacitive channels to be individually config ured. o prox and touch adjustable thresholds o individual sensitivity setups o alternative ati modes ? discreet button ui: o fully configurable 2 level threshold setup C traditional prox & touch activation levels. o customizable filter halt time 2.2 channel specifications th e IQS621 provides a maximum of 2 channels available to be configured for capacitive sensing. each channel can be setup separately according to the channels associated settings registers. there are two distinct capacitive user interfaces available to be used. a) discreet proximity/touch ui (always enabled) table 2.1 capacitive sensing - channel allocation sensor/ui type ch0 ch1 ch2 ch3 ch4 ch5 ch6 s elf c apacitive o o key: o - optional implementation ? - fixed use for ui
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 9 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 2.3 hardware configuration in the table below are multiple options of configuring sensing (rx) and transmitting (tx) electrodes to realize different implementations (combinations not shown). table 2.2 capacitive sensing hardware description self capacitive 1 button 2 buttons rx0 rx1 tx0 IQS621 rx0 rx1 tx0 IQS621
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 10 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 2.4 software configuration to be completed. 2.5 sensor data output and flags the following registers should be monitored by the master to detect capacitive sensor activations: a) the global e vents register (0x11) will show the IQS621s main events. bit0 is dedicated to the proxsense activations. global e vents (0x11) bit number 7 6 5 4 3 2 1 0 data access - r r r r r r r name - power mode event sys event temp event metal d e tect event als event hall event prox sense event b) the prox sense ui f lags (0x12) provide more detail regarding the capacitive sensor outputs. a n individual prox and touch output bit for channe l 0 and 1 is provided in the proxfusion ui f lags register. prox sense ui f lags (0x12) bit number 7 6 5 4 3 2 1 0 data access - - r r - - r r name - - ch1_t ch0_t - - ch1_p ch0_p
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 11 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 3 inductive sensing 3.1 introduction to inductive sensing the IQS621 provides inductive sensing capabilities in order to detect the presence of metal/metal - type obj ects. prox and touch thresholds are widely adjustable and individual hysteresis settings are definable for each . 3.2 channel specifications the IQS621 requires 3 sensing lines for mutual inductive sensing. channel 1 is de dicated to the mutual inductive ui . there are two distinct inductive user interfaces available to be used. a) discreet proximity/touch ui (always enabled) b) metal detect ui table 3.1 mutual i nductive sensor C channel allocation mode ch0 ch1 ch2 ch3 ch4 ch5 mutual i nductive ? key: o - optional implementation ? - fixed use for ui
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 12 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 3.3 hardware configuration rudimentary hardware configurations (to be completed). table 3.2 mutual i nductive hardware description mutual inductive metal detect ui 3.4 software configuration to be completed. rx0 rx1 tx0
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 13 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 3.5 sensor data output and flags the following registers can be monitored by the master to detect inductive sensor related events. a) global e vents (0x11) to prompt for inductive sensor activation. bit3 denoted as metal_detect_event will indicate the detection of a meta l object using the inductive sensing. global e vents (0x11) bit number 7 6 5 4 3 2 1 0 data access - r r r r r r r name - power mode event sys event temp event metal d e tect event als event hall event prox sense event b) the metal detect ui f lags (0x13) register provides the classic prox/touch two level activation outputs as well as a signed output bit to distinguish between whether the counts have risen or fallen below the lta (direction of counts) . metal detect ui f lags (0x13) bit number 7 6 5 4 3 2 1 0 data access - - - - - r r r name - - - - - signed output touch prox c) metal detect ui o utput (0x14 - 0x15) registers will provide a combined 16 - bit value to acquire the magnitude of the inductive sensed object. metal d etect ui o utput (0x14 - 0x15) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name metal detect ui output low b yte bit number 15 14 13 12 11 10 9 8 data access r r r r r r r r name metal detect ui output high b yte
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 14 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 4 ambient light sensing (als) 4.1 introduction to ambient light sensing the IQS621 employs two light sensitive semi - conductor areas on chip to realise an ambient light sensor. the sensor capabilities includes: ? human eye response compensated ? 4 - bit als range output (0 - 10) ? dual threshold detection for day/night indicati on with hysteresis o 8 - bit individual definable li ght and dark trigger thresholds o dark threshold range : 0 C 1020 lux in steps of 4 lux . o light threshold range: 0 C 4080 lux in steps of 16 lux . 4.2 channel specifications the IQS621 provides 2 dedicated channels to als conversions. table 4.1 ambient light sensing - channel allocation sensor/ui type ch0 ch1 ch2 ch3 ch4 ch5 ch6 als ? ? key: ? - fixed use for ui please note: ? cs size, multipliers and charge frequency are adjustable. ? counts on these channels are limited to 8000 counts. ? ch3 C als channel 1: o assigned to wide spectrum als . ? ch4 C als channel 2 : o assigned to narrow spectrum als . 4.3 hardware configuration to be completed. 4.4 software configuration to be completed.
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 15 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 4.5 sensor data output and flags the following registers can be monitored by the master to detect als related events. a) the als ev en t ( bit 2 ) in the global e vents (0x11) register are dedicated to als related events. this bit will toggle when either one of the three hall fla gs is set and is automatically cleared after reading the registers. global e vents (0x11) bit number 7 6 5 4 3 2 1 0 data access - r r r r r r r name - power mode ev en t sys ev en t temp ev en t metal d e t e ct ev en t als ev en t hall ev en t prox sense ev en t b) the als ui f lags (0x1 6 ) register provides a 4 bit als range value to indicate the current als reading (als range v alue bit 0 - 3) . an additional light /d ark bit (bit 7) is used to indicate the als sensor status measured against the two configurable light/dark thr eshold values in registers 0x80 and 0x81. the user can thus setup his own triggering thresholds for l ight and dark perceived readings and also incorporate a hysteresis using this ui. als ui f lags (0x16) bit number 7 6 5 4 3 2 1 0 data access r - - - r r r r name light / dark reserved als range v alue c) the als ui o utput (0x17 - 0x18 ) registers provide a 16 bit value of the als amplitude in units of lux as obtained by the current sensor measurement. als ui o utput (0x17 - 0x18 ) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name als ui output low b yte bit number 15 14 13 12 11 10 9 8 data access r r r r r r r r name als ui output high b yte
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 16 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 5 hall - effect sensing 5.1 introduction to hall - effect sensing the IQS621 has two internal hall - effect sensing plates (on chip ). no external sensing hardware is required for hall - effect sensing. the hall - effect measurement is essentially a current measurement of the induced current through the hall - effect - sensor plates produced by the magnetic field passing perpendicular t hrough each plate. advanced digital signal processing are performed to provide sensible output data. ? two threshold levels are provided (prox imity & touch) . ? hall - effect output is linearized by inverting signals . ? nor th/south field direction indication provided. ? differential hall - e ffect sensing: o removes common mode disturbances o north - south field indication 5.2 channel specifications channels 5 and 6 are dedicated to hall - effect sensing. channel 5 performs the positive dire ction measurements and channel 6 will handle all measurements in the negative direction. these two channels are used in conjunction to acquire differential hall - effect data and will always be used as input data to the hall - effect uis. there is a dedicate d hall - effect user interface : a) hall - effect switch ui table 5.1 hall - effect sensor C channel allocation sensor/ui type ch0 ch1 ch2 ch3 ch4 ch5 ch6 hall - effect switch ui ? positive ? negative key: o - optional implementation ? - fixed use for ui
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 17 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 5.3 hardware configuration rudimentary hardware configurati ons. axially polarized magnet (linear movement or magnet presence detection) hall - effect push switch smart cover bar magnet (linear movement and magnet field detection) slide switch
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 18 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 5.4 software configuration to be completed.
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 19 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 5.5 sensor data output and flags the following registers can be monitored by the master to detect hall - effect related events. d) the hall_ev en t (bit 1) in the global e vents (0x11) register are dedicated to hall - effect related events . this bit will toggle when either one of the three hall flags is set and is automatically cleared after reading the registers. global e vents (0x11) bit number 7 6 5 4 3 2 1 0 data access - r r r r r r r name - power mode event sys event temp event metal d e tect event als event hall event prox sense event e) the hall ui f lags (0x19 ) register provide s the standard two level activation output (prox and touch) as well as a hall_n/ s bit to indicate the magnet polarity orientation. hall - effect ui f lags (0x1 9 ) bit number 7 6 5 4 3 2 1 0 data access - - - - - r r r name - - - - - hall tout hall pout hall n/ s f) the hall ui o utput (0x1a - 0x1b ) registers provide a 16 bit value of the hall - effect amplitude det ected by the sensor . ha ll - effect ui o utput (0x1a - 0x1b ) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name hall - effect ui output low b yte bit number 15 14 13 12 11 10 9 8 data access r r r r r r r r name hall - effect ui output high b yte
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 20 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 6 temperature monitoring 6.1 introduction to temperature monitoring the IQS621 has an internal temperature monitor to validate ic operating temperature: ? 16 - bit kelvin output ? temperature change indicator ? can be used as a temperature change indicator to monitor internal ic temperature and aid in the reliability of other sensor measurements . the IQS621 uses a linearly proportional to absolute temperature sensor for temperature m onitoring . the temperature output is given by, ? = ? ? . ? ? 2 + ? where ? , ? ? ? ? ? are constants that are calculated during ic manufacturing. additionally, the channel setup must be ca librated during testing. 6.2 channel specifications to be completed. table 6.1 temperature monitoring C channel allocation sensor / ui type ch0 ch1 ch2 ch3 ch4 ch5 ch6 temperature trip and output ? key: o - optional implementation ? - fixed use for ui 6.3 hardware configuration no hardware configuration is required for temperature monitoring. o nly the basic external ic components as implemented in the reference schematic. a linearly proportional to absolute temperature (ptat) current is measured by the internal shared sensor engine . the number of counts will lower as temperature increases. 6.4 software configuration to be completed.
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 21 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 6.5 sensor data output and flags the following registers can be monitored by the master to detect temperature sensor related events. a) global e vents (0x11) to prompt for temperature sensor activation. bit4 denoted as temp_ev en t will indicate the detection of a temperature threshol d trigger using the temperature sensing. global e vents (0x11) bit number 7 6 5 4 3 2 1 0 data access - r r r r r r r name - power mode event sys event temp event metal d e tect event als event hall event prox sense event b) the tem perature ui f lags (0x1c) register provides a single bit for temperature trip indication . temperature ui f lags (0x1c) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name temp trip reserved c) the temperature ui o utput (0x1d - 0x1e) registers will provide a combined 16 - bit value to acquire the magnitude of the temperature sensed. temperature ui output (0x1d - 0x1e) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name temperature ui output low b yte bit number 15 14 13 12 11 10 9 8 data access r r r r r r r r name temperature ui output high b yte
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 22 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 7 device clock, power management and mode operation 7.1 device main oscillator the IQS621 has a 16mhz main oscillator (default enabled) to clock all system functionality. an option exists to redu ce the main oscillator to 8mhz. this will result in all system timings , charge transfers and sample rates to be slower by half of the default implementations. to set this option this: o as a software setting C set the system_ s ettings : bit4 = 1, via an i 2 c command. o as a permanent setting C set the otp option in fg bank 0: bit2 = 1, using azoteq usbprog program. 7.2 device modes the IQS621 supports the following modes of operation; ? normal mode (fixed report rate) ? l ow p ower mode (reduced report rate , no ui execution ) ? ultra - l ow p ower mode ( only channel 0 is sensed for a prox ) ? halt m ode (suspended/disabled) note: auto modes must be disabled to enter or exit halt mode . the device will automatically switch between the different operating modes by default. however t his auto mode feature may be disabled by setting the dsbl_auto_mode bit (power_mode _ s ettings 0xd 2: bit5) to confine device operation to a specific power mode . the p ower_mode bits (power_mode_s ettings 0xd 2: bit4 - 3) can then be used to specify the desired mode of operation. normal mode normal mode is the fully active sensin g mode to function at a fixed report rate specified in the normal mode report rate (0xd3) register. this 8 - bit value is adjustable from 0ms C 255ms in intervals of 1ms. note: the devices low power oscillator have an accuracy as specified in section 9 . low power mode low power mode is a reduced sensing mode where all channels are sensed but no ui code are executed. the sample rate can be specified in the low power mode report rate (0xd4) register. the 8 - bit value is adjustable from 0ms C 255ms in intervals of 1ms. reduced report rates also reduce the current consumed by the sensor. note: the devices low power oscillator have an accuracy as specified in s ection 9 . ultra - low power mode ultra - low power mode is a reduced sensing mode where only channel 0 is sensed and no other channels or ui code are executed. set the en_ulp_mde bit (power_mode _ s ettings: bit6) to enable use of the ultra - low power mode. the sample rate can be specified in the low power mode report rate (0xd5) register. the 8 - bit value is adjustable from 0ms C 4sec in intervals of 16ms. wake up will occur o n prox detection on channel 0. halt mode hal t mode will suspend all sensing and will place the device in a dormant or sleep state. the device requires an i 2 c command from a master to explicitly change the power mode out of the halt state before any sensor functionality can continue.
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 23 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 mode time the mode time is specified in the auto mode t i mer (0xd6) register. the 8 - bit value is adjustable from 0ms C 2 min in intervals of 500 ms . 7.3 report rates calculation of each modes report rate np_segment rate to be completed. auto modes change rates to be completed. streaming/event mode rates to be completed. 7.4 system reset the IQS621 devi ce monitor s system resets and events. a) every device power - on and reset event will set the show reset bit (system f lags 0x10: bit7) and the master should explicitly clear this bit by writing it active to acknowledg e a valid reset. b) t he system events will also be indicated with the global e vents registers sys _event bit ( global e vents 0x 11: bit4) if any system event occur such as a reset . this event will continuously trigger until the reset has been acknowledged.
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 24 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 8 communication 8.1 i 2 c module specification the device supports a standard two wire i 2 c interface with the addition of an rdy (ready interrupt) line. the communications interface of the iqs620 supports the following: ? streaming data as well as event mode. ? the ma ster may address the device at any time. if the iqs620 is not in a communication window, the device will return an ack after which clock stretching may be induced until a communication window is entered. additional communication checks are included in the main loop in order to reduce the average clock stretching time. ? the provided interrupt line (rdy) is open - drain active low implementation and indicates a communication window. 8.2 device address and sub - addresses the default device address is 0x44 = default_addr . alternative sub - address options are definable in the following one - time programmable bits: otp bank0 (bit3; 0; bit1; bit0) = sub_addr _0 to sub_addr_7 a) default address: 0x44 = default_addr or sub_addr _0 b) sub - address: 0x45 = default_addr or sub_addr _1 c) sub - address: 0x46 = default_addr or sub_addr _2 d) sub - address: 0x47 = default_addr or sub_addr _3 e) sub - address: 0x4c = default_addr or sub_addr _4 f) sub - address: 0x4d = default_addr or sub_addr _5 g) sub - address: 0x4e = default_addr or sub_addr _6 h) sub - address: 0x4f = default_addr or sub_addr _7 8.3 additional otp options all one - time - programmable device options are located in otp bank 0. otp bank0 bit number 7 6 5 4 3 2 1 0 name - comms ati - als inc delay sub adr 2 8 mhz sub adr 0_1 bit definitions: ? bit 6: communication during ati o 0: no streaming events are generated during ati o 1: communication continue s as setup regardless of ati state. ? bit4: als increment delay o 0: no delay increment o 1: increment delay enabled ? bit 2: main clock frequency selection o 0: run fosc at 16mhz o 1: run fosc at 8 mhz ? bit 3 ,1,0 : i2c sub - address o i2c address = 0x44 or sub_addr
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 25 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 8.4 recommended communication and runtime flow diagram the following is a basic master program flow diagram to communicate and handle the device. it addresses possible device events such as output events, ati and system events (resets). figure 8.1 master command structure and runtime event handling flow diagram it is recommended that the master verifies the status of the system_flags0 bits to identify events an d resets. detecting either one of these should prompt the master to the n ext steps of handling the IQS621 . streaming mode communication is used for detail sensor evaluation during prototyping and/or development phases. event mode communication is recommend ed for runtime use of the iqs62 1 . this reduce the communication on the i 2 c bus and report only triggered events. por clear show_reset setup & initialization runtime global event? valid event? retrieve event data ati in ati? show reset? system event? yes yes yes no reset occured no no yes
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 26 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9 memory map the full memory map is summarized below . register groups are explained in the latter subsections. table 9.1 IQS621 memory map index full address group name item name data access 0x00 device information data product n umber read - only 0x01 software n umber read - only 0x02 hardw are n umber read - only 0x10 flags and user interface d ata system f lags read - only 0x11 global e vents read - only 0x12 proxsense ui f lags read - only 0x13 metal d etect ui f lags read - only 0x14 metal detect ui o utput 0 read - only 0x15 metal d etect ui o utput 1 read - only 0x16 als f lags read - only 0x17 als o utput l ow read - only 0x18 als output h igh read - only 0x19 hall - effect ui f lags read - only 0x1a hall - effect ui o utput 0 read - only 0x1b hall - effect ui o utput 1 read - only 0x1c temperature ui f lags read - only 0x1d temperature o utput l ow read - only 0x1e temperature o utput h igh read - only 0x20 channel counts (raw data) channel 0 counts l ow read - only 0x21 channel 0 counts h igh read - only 0x22 channel 1 counts low read - only 0x23 channel 1 counts high read - only 0x24 channel 2 counts low read - only 0x25 channel 2 counts high read - only 0x26 channel 3 counts low read - only 0x27 channel 3 counts high read - only 0x28 channel 4 counts low read - only 0x29 channel 4 counts high read - only 0x2a channel 5 counts low read - only 0x2b channel 5 counts high read - only 0x2c channel 6 counts low read - only 0x2d channel 6 counts high read - only 0x30 lta values (filtered data) channel 0 lta l ow read - only 0x31 channel 0 lta high read - only 0x32 channel 1 lta low read - only 0x33 channel 2 lta high read - only 0x40 proxfusion sensor s ettings proxfusion s ettings 0_0 read - write 0x41 proxfusion s ettings 0_1 read - write 0x42 proxfusion s ettings 1_0 read - write 0x43 proxfusion s ettings 1_1 read - write 0x44 proxfusion s ettings 2_0 read - write 0x45 proxfusion s ettings 2_1 read - write 0x46 proxfusion s ettings 3_0 read - write 0x47 proxfusion s ettings 3_1 read - write 0x48 proxfusion s ettings 4 read - write 0x49 proxfusion s ettings 5 read - write 0x4a compensation ch0 read - write 0x4b compensation ch1 read - write 0x4c multipliers ch0 read - write 0x4d multipliers ch1 read - write
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 27 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 0x5 0 proxsense ui s ettings p rox t hreshold ch0 read - write 0x5 1 t ouch t hreshold ch0 read - write 0x5 2 p rox t hreshold ch1 read - write 0x5 3 touch t hreshold ch1 read - write 0x54 proxsense ui halt t ime read - write 0x6 0 metal detect ui s ettings metal detect ui s ettings read - write 0x6 1 metal d etect ui filter halt threshold read - write 0x6 2 metal detect ui prox threshold read - write 0x6 3 metal detect ui touch threshold read - write 0x70 als sensor s ettings als s ettings 0 read - write 0x71 als s ettings 1 read - write 0x72 als filter s peed read - write 0x73 multipliers ch3 ch4 read - write 0x80 als ui s ettings als dark t hreshold read - write 0x81 als light t hreshold read - write 0x82 als to lux divider read - write 0x83 als ir divider read - write 0x90 hall sensor s ettings hall - effect s ettings 0 read - write 0x91 hall - effect s ettings 1 read - write 0x92 compensation ch4 and ch5 read - write 0x93 multipliers ch4 and ch5 read - write 0xa0 hall switch ui s ettings hall - effect switch ui s ettings read - write 0xa1 hall - effect s witch ui prox t hreshold read - write 0xa2 hall - effect s witch ui touch t hreshold read - write 0xc0 temperature ui s ettings temperature ui s ettings read - write 0xc1 multipliers ch2 read - write 0xc2 temperature calibration 0 read - write 0xc3 temperature calibration 1 read - write 0xd0 device and power mode s ettings system settings read - write 0xd1 active channels read - write 0xd2 power mode settings read - write 0xd3 normal power mode report rate read - write 0xd4 low power mode report rate read - write 0xd5 ultra - low power mode report rate read - write 0xd6 auto m ode time read - write 0xd7 global event mask read - write
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 28 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.2 device information data product number product n umber (0x00) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name device product n umber bit definitions: ? bit 7 - 0 : device product n umber = d70 software number software n umber (0x01) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name device software n umber bit definitions: ? bit 7 - 0: device software n umber = d05 hardware number hardware n umber (0x02) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name device hardware n umber bit definitions: ? bit 7 - 0: device hardware n umber = d 130
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 29 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.3 flags and user interface data system flags system f lags (0x10) bit number 7 6 5 4 3 2 1 0 data access r - - r r r r r name show reset - - power mode in ati event np seg act i v e bit definitions: ? bit 7: reset i ndicator o 0: no reset event o 1: a device reset has occurred and needs to be acknowledged. ? bit 4 - 3 : current power - m ode indicator o 00: normal m ode o 01: low power m ode o 10: ultra - low power mo de o 11: halt mode ? bit 2: ati busy indicator o 0: no channels are in ati o 1: one or more channels are in ati ? bit 1: global event i ndicator o 0: no new event to service o 1: an event has occurred and should be ser viced ? bit 0: normal power s egment indicator o 0: not p erforming a normal power update o 1: busy performing a normal power update global events g lobal e vents (0x11) bit number 7 6 5 4 3 2 1 0 data access - r r r r r r r name - power mode event sys event temp event metal d e tect event als event hall event prox sense event b it definitions: ? bit 6: power mode event flag o 0: no event to report o 1: a power mode event has occurred and should be handled ? bit 5: system event flag o 0: no event to report o 1: a system event has occurred and should be handled ? bit 4: temperature event flag o 0: no event to report
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 30 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 o 1: a temperature event has occurred and should be handled ? bit 3: metal d etect event flag o 0: no event to report o 1: a metal d etect event has occurred and should be h andled ? bit 2: als event flag o 0: no event to report o 1: an als event has occurred and should be handled ? bit 1: hall - effect event flag o 0: no event to report o 1: a hall - effect event has occurred and should be handled ? bit 0: proxsense event flag o 0: no event to r eport o 1: a capacitive key event has occurred and should be handled proxsense ui flags proxsense ui f lags (0x12) bit number 7 6 5 4 3 2 1 0 data access - - r r - - r r name - - ch1_t ch0_t - - ch1_p ch0_p bit definitions: ? bit 5: ch1 touch indicator o 0: delta below touch level o 1: delta above touch level ? bit 4: ch0 touch indicator o 0: delta below touch level o 1: delta above touch level ? bit 1: ch1 proximity indicator o 0: delta below proximity level o 1: delta above proximity level ? bit 0: ch0 proximity indicator o 0: delta below proximity level o 1: delta above proximity level . metal detect ui flags m etal detect ui f lags (0x13) bit number 7 6 5 4 3 2 1 0 data access - - - - - r r r name - - - - - signed output touch prox bit definitions: ? bit 2: delta direction signed output o 0: counts rise above the lta o 1: counts fall below the lta
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 31 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 ? bit 1: metal detect touch indicator o 0: field strength below touch level o 1: field strength above touch level ? bit 0 : me tal detect proximity indicator o 0: delta below proximity level o 1: delta above proximity level metal detect ui output m etal detect ui o utput (0x14/0x15) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name metal detect ui output low b yte bit number 15 14 13 12 11 10 9 8 data access r r r r r r r r name metal detect ui output high b yte bit definitions: ? bit 15 - 0 : metal detect ui output value als ui flags als ui f lags (0x16) bit number 7 6 5 4 3 2 1 0 data access r - - - r r r r name l ight / dark reserved als range value bit definitions: ? bit 7: light/dark o 0: light indication o 1: dark indication ? bit 3 - 0: als range value o 0 - 10 range value of als measurement als ui output als ui o utput (0x17/0x18) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name als ui output low byte bit number 15 14 13 12 11 10 9 8 data access r r r r r r r r
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 32 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 name als ui output high byte bit definitions: ? bit 1 5 - 0 : als ui output hall - effect ui flags hall - effect ui f lags (0x19 ) bit number 7 6 5 4 3 2 1 0 data access - - - - - r r r name - - - - - touch prox hall n/ s bit definitions: ? bit 2: hall - effect touch indicator o 0: field strength below touch level o 1: field strength above touch level ? bit 1: hall - effect proximity indicator o 0: field strength below proximity level o 1: field strength above proximity level ? bit 0: ha ll - effec t north south field indication o 0: north field present o 1: south field present hall - effect ui output hall - effect ui o utput (0x1 a /0x1 b ) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name hall - effect ui o utput l ow b yte bit number 15 14 13 12 11 10 9 8 data access r r r r r r r r name hall - effect ui o utput h igh b yte bit definitions: ? bit 15 - 0 : hall - effect ui output temperature ui flags temperature ui f lags (0x1 c ) bit number 7 6 5 4 3 2 1 0 data access r - - - - - - - name temp trip - - - - - - - bit definitions:
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 33 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 ? bit 7 : temperature trip indicator o 0: temperature below trip level o 1: temperature above trip level temperature output temperature o utput (0x1 d /0x1 e ) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name temperature o utput l ow b yte bit number 15 14 13 12 11 10 9 8 data access r r r r r r r r name temperature o utput h igh b yte bit definitions: ? bit 15 - 0 : temperature output
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 34 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.4 channel counts (raw data) channel counts ch0/1/2/3 /4/5/6 (0x20/0x21 - 0x2 c /0x2 d ) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name channel data low b yte bit number 15 14 13 12 11 10 9 8 data access r r r r r r r r name channel data high b yte bit definitions: ? bit 15 - 0 : ac filter or raw count value 9.5 lta values (filtered data) lta ch0/1 (0x30/0x31 - 0x32/0x33 ) bit number 7 6 5 4 3 2 1 0 data access r r r r r r r r name lta low b yte bit number 15 14 13 12 11 10 9 8 data access r r r r r r r r name lta high b yte bit definitions: ? bit 15 - 0 : lta filter value
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 35 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.6 p roxfusion sensor settings block 1 proxfusion settings 0 9.6.1.1 capacitive sensing p roxfusion s etti ngs 0_0/1 (0x40 - 0x41 ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w - - r/w r/w r/w r/w name capacitive sensor m ode internal use internal use tx s elect rx s elect fixed value 0 0 0 0 0 0 bit definitions: ? bit 6 - 7: sensor m ode o 00: capacitive sensing mode ? bit 3 - 2 : t x select o 00: tx 0 and tx 1 is disabled ? bit 0 - 1: rx s elect o 00: rx 0 and rx 1 is disabled o 01: rx 0 is enabled o 10: rx 1 is enabled o 11: rx 0 and rx 1 is enabled 9.6.1.2 inductive sensing p roxfusion s ettings 0_1 ( 0x41) bit number 7 6 5 4 3 2 1 0 data access r/w r/w - r/w r/w r/w r/w r/w name inductive s ensor m ode internal use multiplier range tx s elect rx s elect fixed value 1 0 0 0 0 1 1 bit definitions: ? bit 7 - 6: sensor m ode o 10: inductive sensor mode ? bit 4: multiplier range o 0: small o 1: large ? bit 3 - 2 : t x select o 00: tx 0 and tx 1 is disabled ? bit 1 - 0 : rx select o 11: rx 0 and rx 1 is enabled
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 36 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 proxfusion settings 1 9.6.2.1 capacitive sensing p roxfusion s ettings 1 _0/1 (0x4 2 - 0x4 3 ) bit number 7 6 5 4 3 2 1 0 data access - r/w r/w r/w - - r/w r/w name - csz charge freq internal use auto ati mode bit definitions: ? bit 6: cs size o 0: prox storage capacitor size is 15 pf o 1: prox storage capacitor size is 60 pf ? bit 5 - 4 : charge frequency divider o 00: 1/2 o 01: 1/4 o 10: 1/8 o 11: 1/16 ? bit 1 - 0 : auto ati mode o 00: ati disabled o 01: partial ati ( all multipliers are fixed) o 10: semi - p artial ati (coarse multipliers are fixed) o 11: full - ati 9.6.2.2 inductive sensing p roxfusion s ettings 1 _ 1 ( 0x43) bit number 7 6 5 4 3 2 1 0 data access - r/w r/w r/w r/w r/w r/w r/w name - csz charge freq proj bias auto ati mode bit definitions: ? bit 6: cs size o 0: prox stor age capacitor size is 15 pf o 1: pr ox storage capacitor size is 60 pf ? bit 5 - 4 : charge frequency divider o 00: 1/2 o 01: 1/4 o 10: 1/8 o 11: 1/16 ? bit 3 - 2 : projected bias / internal resistor (all modes except prox) o 00: 2.5 a / 88 k o 01: 5 a / 66 k o 10: 10 a / 44 k o 11: 20 a / 22 k ? bit 1 - 0 : auto ati mode o 00: ati disabled
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 37 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 o 01: partial ati (all multipliers are fixed) o 10: semi - partial ati (coarse multipliers are fixed) o 11: full - ati proxfusion settings 2 9.6.3.1 capacitive sensing p roxfusion s ettings 2_0/1 (0x44 - 0x45 ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name ati base ati target (x32) bit definitions: ? bit 7 - 6 : auto ati base value o 00: 75 o 01: 100 o 10: 150 o 11: 200 ? bit 5 - 0 : auto ati target o ati target is 6 - bit value x 32 9.6.3.2 inductive sensing p roxfusion settings 2_1 ( 0x45) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name ati base ati target (x32) bit definitions: ? bit 7 - 6 : auto ati base value o 00: 75 o 01: 100 o 10: 150 o 11: 200 ? bit 5 - 0 : auto ati target o ati target is 6 - bit value x 32 proxfusion settings 3 9.6.4.1 capacitive sensing p roxfusion s ettings 3_0/1 (0x4 6 - 0x4 7 ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w - r/w r/w r/w - name up length select cs div internal use up lengt h en pass length -
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 38 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 bit definitions: ? bit 7 - 6 : up length select (requires up_length_en = 1 for use) o 0 0: up length = 0010 o 01: up length = 0110 o 10: u p length = 1010 o 11: up length = 1110 ? bit 5: cs divider o 0: normal cs cap size o 1: cs cap size 3 times smaller ? bit 3: up length select enable o 0: up length select is disabled o 1: up length select is enabled (value in bit 7 - 6 is used) ? bit 2 - 1 : pass length s elect o 00: pass length = 001 o 01: pass length = 011 o 10: pass length = 101 o 11: pass length = 111 9.6.4.2 inductive sensing p roxfusion settings 3_1 ( 0x47) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w - r/w r/w r/w - name up length select cs div internal use up length en pass length - bit definitions: ? bit 7 - 6 : up length s elect (requires up_length_en = 1 for use) o 0 0: up length = 0010 o 01: up length = 0110 o 10: u p length = 1010 o 11: up length = 1110 ? bit 5: cs divider o 0: normal cs cap size o 1: cs cap size 3 times smaller ? bit 3: up length select enable o 0: up length select is disabled o 1: up length select is enabled (value in bit 7 - 6 is used) ? bit 2 - 1 : pass length s elect o 00: pass length = 001 o 01: pass length = 011 o 10: pass length = 101 o 11: pass length = 111
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 39 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 proxfusion settings 4 9.6.5.1 capacitiv e sensing p roxfusion s ettings 4 (0x48 ) bit number 7 6 5 4 3 2 1 0 data access - - r/w r/w r/w r/w r/w r/w name - internal use two sided en acf disable lta beta acf beta bit definitions: ? bit 5: two sided d etection o 0: bidirectional detection disabled o 1: bidirectional detection enabled ? bit 4: disable ac filter o 0: ac filter e nabled o 1: ac filter d isabled ? bit 3 - 2 : long term average beta v alue o 00: 7 o 01: 8 o 10: 9 o 11: 10 ? bit 1 - 0 : ac f ilter b eta v alue o 00: 1 o 01: 2 o 10: 3 o 11: 4 9.6.5.2 inductive sensing p roxfusion s ettings 4 (0x48) bit number 7 6 5 4 3 2 1 0 data access - r/w r/w r/w r/w r/w r/w r/w name - metal d etec t en two sided en acf disable lta beta acf beta bit definitions: ? bit 0 - 1: ac f ilter b eta v alue o 00: 1 o 01: 2 o 10: 3 o 11: 4 ? bit 2 - 3: long term average beta v alue o 00: 7 o 01: 8 o 10: 9
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 40 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 o 11: 10 ? bit 4: disable ac f ilter o 0: ac filter e nabled o 1: ac filter d isabled ? bit 5: two sided d etection o 0: bidirectional detection disabled o 1: bidirectional detection enabled ? bit 6: metal detection ui e nable o 0: metal d etection ui is disable d o 1: metal d etection ui is enabled proxfusion settings 5 p roxfusion s ettings 5 (0x49 ) bit number 7 6 5 4 3 2 1 0 data access - - - - - - - - name internal use bit definitions: ? bit 7 - 0 : internal use compensation compensation ch0/1/2/3 (0x4a - 0x 4b ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name compensation (0 - 7) bit definitions: ? bit 7 - 0 : compensation (7 - 0) o 0 - 255: lower 8 - bits of the compensation value. multipliers multipliers ch0/1/2/3 (0x 4c - 0x 4d ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name compensation (8 - 9) multiplier coarse multiplier fine bit definitions: ? bit 7 - 6 : compensation (8 - 9) o 0 - 3: upper 2 - bits of the compensation value. ? bit 5 - 4 : multiplier coarse o 0 - 3: coarse multiplier selection ? bit 3 - 0 : multiplier fine o 0 - 15: fine multiplier selection
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 41 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.7 proxfusion ui s ettings prox threshold ch0/1 prox threshold ch0/1 (0x50/0x52 ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name proximity t hreshold v alue bit definitions: ? bit 7 - 0 : proximity t hreshold = proximity t hreshold v alue touch threshold ch0/1 touch threshold ch0/1 ( 0x51/0x53 ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name touch t hreshold v alue bit definitions: ? bit 7 - 0 : touch t hreshold = touch t hreshold v alue * lta/ 256 proxfusion discrete ui halt time proxfusion discrete ui halt t ime (0x54 ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name halt t ime bit definitions: ? bit 7 - 0 : halt time in 500ms increments (decimal value x 500ms)
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 42 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.8 metal d etect ui s ettings metal detect ui settings metal d ete ct ui settings (0x60) bit number 7 6 5 4 3 2 1 0 data access - - r/w r/w - - r/w r/w name - - hysteresis_t - - hysteresis_p bit definitions: ? bi t 5 - 4 : touch h ysteresis o 00: disabled o 01: 1/4 of threshold o 10: 1/8 of threshold o 11: 1/16 of threshold ? bit 1 - 0 : proximity h ysteresis o 00: disabled o 01: 1/4 of threshold o 10: 1/8 of threshold o 11: 1/16 of threshold metal detect ui filter halt threshold m etal detect ui filter halt t hreshold (0x61) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name metal detect filter halt threshold v alue bit definitions: ? bit 7 - 0 : f ilter halt threshold = metal detect filter halt threshold v alue metal detect ui proximity threshold metal detect ui proximity t hreshold (0x62) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name proximity threshold v alue bit definitions: ? bit 7 - 0 : proximity t h reshold = proximity threshold v alue metal detect ui touch threshold metal detect ui touch t hreshold (0x63) bit number 7 6 5 4 3 2 1 0
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 43 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 data access r/w r/w r/w r/w r/w r/w r/w r/w name touch threshold v alue bit definitions: ? bit 7 - 0 : touch threshold = touch threshold v alue * 4
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 44 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.9 als sensor settings als settings 0 als s ettings 0 (0x70) bit number 7 6 5 4 3 2 1 0 data access - - r/w r/w r/w r/w - - name - internal use charge freq inc delay cs - - bit definitions: ? bit 5 - 4 : charge frequency divider o 00: 1/2 o 01: 1/4 o 10: 1/8 o 11: 1/16 ? bit 3: inc delay o 0: pre - charge delay is at default o 1: increase p re - charge delay to improve low light performance ? bit 2: cs divider size o 0: cs divider size default o 1: cs divider size increased als settings 1 als s ettings 1 (0x71) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name ati target (x32) multiplier calibration bit definitions: ? bit 7 - 2: ati t arget for als c h4 = ati t arget x 32 ? bit 1 - 0 : multiplier calibration o 0 - 3: multiplier calibration size for als sensor calibration als settings filter speed a ls settings filter s peed (0x72) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name als settings filter s peed bit definitions: ? bit 7 - 0 : als settings filter s peed o 0: both filter stages are disabled o 1: only the iir filter is enabled
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 45 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 o 2 - 255: windowed minima filter ( with window length of 2 - 255) as well as the iir is enabled multipliers ch3/4 multipliers ch3/ 4 (0x75) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name - multiplier coarse muliplier fine bit definitions: ? bit 5 - 4 : multiplier coarse o 0 - 3: coarse multiplier selection ? bit 3 - 0 : multiplier fine o 0 - 15: fine multiplier selection
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 46 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.10 als ui s ettings als dark threshold als dark t hreshold (0x80) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name als dark t hreshold x4 (lux) bit definitions: ? bit 7 - 0 : dark t hreshold = dark t hreshold value x4 als light threshold als light t hreshold (0x81) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name als light threshold x16 (lux) bit definitions: ? bit 7 - 0 : dark threshold = dark threshold value x16 als raw to lux divider als r aw t o lux d ivider (0x82) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name als r aw to lux d ivider bit definitions: ? bit 7 - 0 : als r aw to lux d ivider = als r aw to lux d ivider value (the default value is loaded from fgb2, 0 disables divider) als ir compensation a ls ir c ompensation (0x83) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name als ir compensation d ivider bit definitions: ? bit 0 - 7: als ir compensation d ivider = als ir compensation d ivider value (the default value is loaded from fgb 3 lower nibble, 0 disables di vider)
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 47 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.11 hall - effect sensor settings hall - effect settings 0 hall - effect s ettings 0 (0x90) bit number 7 6 5 4 3 2 1 0 data access - - r/w r/w - - r/w r/w name - - charge freq reserved auto ati mode bit definitions: ? bit 0 - 1: auto ati mode o 00: ati disabled o 01: partial ati ( all multipliers are fixed) o 10: semi - partial ati (only coarse multipliers are fixed) o 11: full - ati ? bit 4 - 5: charge frequency divider o 00: 1/2 o 01: 1/4 o 10: 1/8 o 11: 1/16 hall - effect settings 1 hall - effect s ettings 1 (0x91) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name ati_base ati_target (x32) bit definitions: ? bit 0 - 5: auto ati target o ati target is 6 - bit value x 32 ? bit 6 - 7: auto ati base value o 00: 75 o 01: 100 o 10: 150 o 11: 200 compensation ch4/5 compensation ch 5 /6 (0x92) bit number 7 6 5 4 3 2 1 0 data a ccess r/w r/w r/w r/w r/w r/w r/w r/w name compensation ( 7 - 0 ) bit definitions: ? bit 7 - 0 : compensation (7 - 0)
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 48 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 o 7 - 0 : lower 8 - bits of the compensation value. multipliers ch4/5 multipliers ch 5 /6 (0x93) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name compensation ( 9 - 8 ) multipliers coarse multipliers fine bit definitions: ? bit 7 - 6 : compensation (9 - 8) o 0 - 3: upper 2 - bits of the compensation value. ? bit 5 - 4 : multipliers coarse o 0 - 3: coarse multiplier selection ? bit 3 - 0 : multipliers fine o 0 - 15: fine multiplier selection
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 49 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.12 hall - effect s witch ui s ettings hall - effect ui settings hall - effect ui s ettings (0xa0) bit number 7 6 5 4 3 2 1 0 data access - r/w r/w r/w - r/w r/w r/w name lin mode hysteresis t - swap dir ection hysteresis p bit definitions: ? bit 6: linearize o utput o 0: disabled o 1: enabled ? bit 4 - 5: touch h ysteresis o 00: disabled o 01: 1/4 of threshold o 10: 1/8 of threshold o 11: 1/16 of threshold ? bit 2: swap field direction indication o 0: disabled o 1: enabled ? bit 0 - 1: proximity h ysteresi s o 00: disabled o 01: 1/4 of threshold o 10: 1/8 of threshold o 11: 1/16 of threshold hall - effect ui proximity threshold h all - effect ui proximity t hreshold (0xa1) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name proximity threshold v alue bit definitions: ? bit 0 - 7: proximity threshold = proximity threshold value hall - effect ui touch threshold h all - effect ui touch t hreshold (0xa2) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name touch threshold v alue bit definitions:
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 50 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 ? bit 0 - 7: touch threshold = touch threshold value * 4 9.13 temperature monitoring ui s ettings temperature ui settings temperature ui s ettings (0xc0) bit number 7 6 5 4 3 2 1 0 data access - r/w r/w r/w r/w r/w r/w r/w name reserved reseed in prox reseed en r eseed threshold bit definitions: ? bit 6: allow temperature reseed while in p roximity o 0: reseed in prox disabled o 1: reseed in prox enabled ? bit 5: temperature reseed e nable o 0: reseed is disabled o 1: reseed is enabled ? bit 4 - 0 : temperature r esee d t hreshold = temperature r eseed t hreshold value multiplier channel 2 multiplier ch2 (0xc1 ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name multiplier ch2 bit definitions: ? bit 7 - 0 : multiplier channel 2 temperature calibration 0 t emperature c ali b ra tion 0 (0xc2) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name temperature m ultiplier temperature d ivider bit definitions: ? bit 7 - 4 : temperature m ultiplier = temperature m ultiplier value ? bit 3 - 0 : temperature d ivider = temperature d ivider value temperature calibration 1 t emperature calibration 1 (0xc3) bit number 7 6 5 4 3 2 1 0
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 51 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 data access r/w r/w r/w r/w r/w r/w r/w r/w name temperature o ffset bit definitions: ? bit 7 - 0 : temperature o ffset = temperature o ffset value
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 52 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 9.14 device and power mode s ettings system settings system settings (0xd0) bit number 7 6 5 4 3 2 1 0 data access w=1 w=1 r/w r/w r/w r/w w=1 w=1 name s oft r e s e t ack r e s e t event m o de 8 mhz c om ms ati ati band redo ati reseed bit definitions: ? bit 7: software reset ( set only, will clear when done ) o 1: causes the device to perform a wdt reset ? bit 6: ack reset ( set only, will clear when done ) o 1: acknowledge that a reset has occurred. this event will trigger until acknowledged . ? bit 5: event mode enable o 0: event mode disabled. default s treaming mode communication. o 1: e vent mode communication enabled. ? bit 4: main clock frequency selection o 0: run fosc at 16mhz o 1: run fosc at 8 mhz ? bit 3: comm unication s during ati o 0: no communica tions are generated during ati o 1: comm unication continue as setup regardless of ati state. ? bit 2: re - ati band selection o 0: re - ati when outside 1/8 of ati target o 1: re - ati when outside 1/16 of ati target ? bit 1: redo ati on all channels ( set only, will clear when done ) o 1: redo the ati on all channels ? bit 0: re seed a ll long - term filters ( set only, will clear when done ) o 1: r eseed all channels active channels a ctive channels (0xd1) bit number 7 6 5 4 3 2 1 0 data access - - r/w r/w r/w r/w r/w r/w name - - ch5 ch4 ch3 ch2 ch1 ch0 bit definitions: ? bit 6: ch6 ( note: ch5 and ch 6 must both be enabled for hall - effect switch ui to be functional ) o 0: channel is disabled o 1: channel is ena bled ? bit 5: ch5 ( note: ch5 and ch 6 must both be enabled for hall - effect switch ui to be functional )
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 53 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 o 0: channel is disabled o 1: channel is ena bled ? bit 4: ch4 ( note: ch3 and ch4 must both be enabled for als ui to be functional ) o 0: channel is disabled o 1: channel is ena bled ? bit 3: ch3 ( note: ch3 and ch4 must both be enabled for als ui to be functional ) o 0: channel is disabled o 1: channel is ena bled ? bit 2: ch2 o 0: channel is disabled o 1: channel is ena bled ? bit 1: ch1 o 0: channel is disabled o 1: channel is ena bled ? bit 0: ch0 o 0: channel is disabled o 1: channel is ena bled power mode settings power mode settings (0xd2) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name np seg all en ulp mode dsbl auto mode p o w e r mode np seg rate bit definitions: ? bit 7: normal power segment bounds check o 0: np - segment check on prx channels only o 1: np - segment check on all channels ? bit 6: : allow auto ultra - low power mode switching o 0: ulp is disabled during auto - mode switching o 1: u lp is enabled during auto - mode switching ? bit 5: disable auto mode switching o 0: auto mode switching is enabled o 1: auto mode switching is disabled ? bit 4 - 3 : manually select power mode ( note: bit 5 must be set ) o 00: normal power mode. the device runs at the normal power rate, all enabled channels and uis will execute. o 01: low power mode. the devic e runs at the low power rate, all enabled channels and uis will execute. o 10: ultra - low power mode. the device runs at the ultra - low power rate, ch0 is run as wake - up channel. the other channels execute at the np - segment rate. o 11: halt mode. no conversions are performed; the device must be removed from this mode using an i2c command.
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 54 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 ? bit 2 - 0 : normal power segment update rate o 000: ? ulp rate o 001: ? ulp rate o 010: 1/8 ulp rate o 011: 1/16 ulp rate o 100: 1/32 ulp rate o 101: 1/64 ulp rate o 110: 1/128 ulp rate o 111: 1/2 56 ulp rate normal power mode report rate normal power mode report r ate (0xd3) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name normal power mode report r ate in ms bit definitions: ? bit 7 - 0 : n ormal mode report rate in ms ( note: lposc timer has + - 4 ms accuracy ) low power mode report rate low p ower mode report r ate (0xd 4 ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name low power mode report r ate in ms bit definitions: ? bit 7 - 0 : low - power mode report rate in ms ( note: lposc timer has + - 4 ms accuracy ) ultra - low power mode report rate ultra - low p ower mode report r ate (0xd 5 ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w name ultra - low power mode report rate in 16 ms increments bit definitions: ? bit 7 - 0 : ultra - low power mode report rate in 16 ms increments (decimal value x 16ms) auto mode timer auto m ode t imer (0xd 6 ) bit number 7 6 5 4 3 2 1 0 data access r/w r/w r/w r/w r/w r/w r/w r/w
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 55 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 name auto mode timer in 500 ms increments bit definitions: ? bit 7 - 0 : auto modes switching time in 500 ms increments (decimal value x 500ms) global event mask g lobal event m ask (0xd7) bit number 7 6 5 4 3 2 1 0 data access - r/w r/w r/w r/w r/w r/w r/w name - power mode ev en t sys ev en t temp event metal d e t ect ev en t als ev en t hall eve nt prox sense ev en t bit definitions: ? bit 6 : power mode event m ask o 0: event is allowed o 1: event is masked ? b it 5 : system event m ask o 0: event is allowed o 1: event is masked ? b it 4 : temperature event m ask o 0: event is allowed o 1: event is masked ? bit 3: metal detect ui event m ask o 0: event is allowed o 1: event is masked ? bit 2: als ui event m ask o 0: event is allowed o 1: event is masked ? bit 1: hall - effect ui event m ask o 0: event is allowed o 1: e vent is masked ? bit 0: proxsense ui event m ask o 0: event is allowed o 1: event is masked
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 56 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 10 electrical characteristics 10.1 absolute maximum specifications the following absolute maximum parameters are specified for the device: exceeding these maximum specifications may cause damage to the device . parameter absolute maximum operating temperature - 40c to 85c supply voltage (vddhi C gnd ) 3.6 v maximum pin voltage vddhi + 0.5v (may not exceed vddhi max) maximum continuous current (for specific p ins) 10ma minimum pin voltage gnd - 0.5v mini mum power - on slope 100v/s esd protection 4 kv ( human body model ) 10.2 power on - reset/brown out description conditions parameter min max unit power on reset v ddhi slope 100v/s @25 c por tbc tbc v brown out detect v ddhi slope 100v/s @25 c bod tbc tbc v 10.3 digital input/output trigger levels description conditions parameter min typical max unit all digital inputs vdd = 1.8v input low level voltage tbc tbc tbc v all digital inputs vdd = 1.8v input high level voltage tbc tbc tbc v all digital inputs vdd = 3.3v input low level voltage tbc tbc tbc v all digital inputs vdd = 3.3v input high level voltage tbc tbc tbc v
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 57 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 10.4 current consumptions als sensing alone power mode conditions report rate min typical max unit np mode vdd = 3.3v 76hz tbc 111 tbc u a np mode vdd = 3.3v 50 hz tbc 33 tbc ua lp mode vdd = 1.8v 10hz tbc 19 tbc u a lp mode vdd = 3.3v tbc tbc tbc ma ulp mode vdd = 1.8v tbc tbc tbc ma ulp mode vdd = 3.3v tbc tbc tbc ma halt mode vdd = 1.8v tbc tbc tbc ma halt mode vdd = 3.3v tbc tbc tbc ma capacitive sensing alone power mode conditions report rate min typical max unit np mode vdd = 1.8v tbc tbc tbc ma np mode vdd = 3.3v tbc tbc tbc ma lp mode vdd = 1.8v tbc tbc tbc ma lp mode vdd = 3.3v tbc tbc tbc ma ulp mode vdd = 1.8v tbc tbc tbc ma ulp mode vdd = 3.3v tbc tbc tbc ma halt mode vdd = 1.8v tbc tbc tbc ma halt mode vdd = 3.3v tbc tbc tbc ma hall - effect sensing alone power mode conditions report rate min typical max unit np mode vdd = 1.8v tbc tbc tbc ma np mode vdd = 3.3v tbc tbc tbc ma lp mode vdd = 1.8v tbc tbc tbc ma lp mode vdd = 3.3v tbc tbc tbc ma ulp mode vdd = 1.8v tbc tbc tbc ma ulp mode vdd = 3.3v tbc tbc tbc ma halt mode vdd = 1.8v tbc tbc tbc ma halt mode vdd = 3.3v tbc tbc tbc ma inductive sensing alone power mode conditions report rate min typical max unit np mode vdd = 1.8v tbc tbc tbc ma np mode vdd = 3.3v tbc tbc tbc ma lp mode vdd = 1.8v tbc tbc tbc ma lp mode vdd = 3.3v tbc tbc tbc ma ulp mode vdd = 1.8v tbc tbc tbc ma
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 58 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 power mode conditions report rate min typical max unit ulp mode vdd = 3.3v tbc tbc tbc ma halt mode vdd = 1.8v tbc tbc tbc ma halt mode vdd = 3.3v tbc tbc tbc ma temperature monitor ing alone power mode conditions report rate min typical max unit np mode vdd = 1.8v tbc tbc tbc ma np mode vdd = 3.3v tbc tbc tbc ma lp mode vdd = 1.8v tbc tbc tbc ma lp mode vdd = 3.3v tbc tbc tbc ma ulp mode vdd = 1.8v tbc tbc tbc ma ulp mode vdd = 3.3v tbc tbc tbc ma halt mode vdd = 1.8v tbc tbc tbc ma halt mode vdd = 3.3v tbc tbc tbc ma
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 59 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 10.5 als specifications human eye response lux calculation the spectral response of the human eye d oes not match that of typical silicone based l ight sensors. the human eye perceives a peak response in the green colour band centred at around 550nm . however s ilicone based sensors has a maximum response to ambient light typically in the infrared band. to translate the sensor measurement to correlate with the human eyes natur al perceived ambient light sensitivity a dynamic mathematical function is applied. the follow parameter values are defined for explanatory purposes: ? ? ??? ?????????? : o a dynamic multiplier value calculated as in the table below for the specifi c als setup and c urrent als value output . ? ? ??? ( ??? ) ?? ??? ??????? : o 8 - bit value loaded from otp bank 2 into register 0x82. this calibration value is determined during ic calibration. ? ? ??? ?? ???????????? ??????? : o 4 - bit value loaded fr om otp bank 2 into register 0x83 . this calibration value is determined during ic calibration and can be increased to a n 8 - bit v alue if calibration requires a higher value but this will need to be written manually to the register . the IQS621s als multiplier (parameter ? ) is calculated as specified in the following table. table 10.1 als multiplier calculation inputs output als value (0x16: bit3 - 0) coarse multiplier (0x75: bit 5 - 4) fine multiplier (0x75: bit 3 - 0) charge frequency divider (0x 70: bit5 - 4) cs size (0x 70: bit2) als multiplier ? 0 0 multiplier_calibration 3 0 1 1 0 multiplier_calibration 2 0 2 2 0 multiplier_calibration 1 0 4 3 0 multiplier_calibration 0 0 8 4 0 multiplier_calibration 1 1 16 5 0 multiplier_calibration 0 1 32 6 0 (multiplier_calibration +1) *2 - 1 0 1 64 7 0 (multiplier_calibration +1) * 4 - 1 0 1 128 8 1 (multiplier_calibration +1) * 4 - 1 0 1 384 9 2 (multiplier_calibration +1) * 4 - 1 0 1 1152 10 3 (multiplier_calibration +1) * 4 - 1 0 1 3456 a ll the calculations performed on chip are simplified for fixed - point arithmetic . the als lux output is calculated by the following equation: ??? ? ? ? ( 2 19 ? ? 4 ? 2 19 ? . ? ? 3 ) als in units of lux (as perceived by a human eye) is calculated using the measurement of channels 3 (als - component ) & 4 (ir - component ) as well as the three compensation parameter ? , ? & ? as defined above .
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 60 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 t he output of this function is a 16 - bit integer available in the als ui output register (0x17 - 0x18). 10.6 capacitive loading limits to be completed. 10.7 hall - effect measurement limits to be completed. 10.8 inductive measurement limits to be completed. 10.9 temperature measurement limits to be completed.
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 61 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this docu ment are preliminary without any warranty and are subject to change without notice . november 2016 11 package information 11.1 uolg - 2.8 x 2.5 x 0.6 C 9 - pin package and footprint specifications table 11.1 uolg - 2.8 x 2.5 x 0.6 C 9 - pin p ackage dimensions (bottom) dimension [mm] a 2.5 00 b 2.8 00 c 0.4 00 d 0.5 00 e 0.43 0 f 0. 330 g 0.115 h 0.12 0 table 11.2 uolg - 2.8 x 2.5 x 0.6 C 9 - pin p ackage dimensions (side) dimension [mm] i 0.600 j 2.800 k 0.370 l 0.230 m 1.560 n 0.620 o 0.400 p 0.145 table 11.3 uolg - 2.8 x 2.5 x 0.6 C 9 - pin l anding pad dimensions dimension [mm] q 0.500 r 0.400 s 0.730 t 0.880 u 1.250 v 1.400 figure 11.1 olga - 2.8 x 2.5 x 0.6 - 9n package dimensions (bottom view ) . figure 11.2 olga - 2.8 x 2.5 x 0.6 - 9n package dimensions (side view ) figure 11.3 olga - 2.8 x 2.5 x 0.6 - 9n landing pad dimension s (viewed from top)
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 62 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice november 2016 11.2 device marking and ordering information to be completed once in production .
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 63 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice november 2016 11.3 tape and reel specification to be completed once in production.
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 64 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice november 2016 11.4 msl level moisture sensitivity level (msl) relates to the packaging and handling precautions for some semiconductors. the msl is an electronic standard for the period in which a moisture sensitive dev ice can be exposed to ambient room conditions (approximately 30c / 85 % rh see j - std033c for more info ) before reflow occur. package level (duration) uolg - 2.8 x 2.5 x0.6 - 9n msl 1 (unlimited at
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 65 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice november 2016 12 datasheet revisions 12.1 revision history revision 1.0 C first release version 12.2 errata
iq switch ? prox fusion ? series copyright ? azoteq 2016 IQS621 preliminary pre - production datasheet revision 0.9 1 page 66 of 66 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice november 2016 appendix a. contact information usa asia south africa physical address 6507 jester blvd bldg 5, suite 510g austin tx 78750 usa rm 2125 , glittery city shennan rd futian district shenzhen, 518033 china 109 main street paarl 7646 south africa postal address 6507 jester blvd bldg 5, suite 510g austin tx 78750 usa rm 2125 , glittery city shennan rd futian district shenzhen, 518033 china po box 3534 paarl 7620 south africa tel +1 512 538 1995 +86 755 8303 5294 ext 808 +27 21 863 0033 fax +1 512 672 8442 +27 21 863 1512 email info@azoteq.com info@azoteq.com info@azoteq.com please visit www.azoteq.com for a list of distributors and worldwide representation . the following patents relate to the device or usage of the device: us 6,249,089; us 6,952,084; us 6,984,900; us 7,084,526; us 7,084,531; us 8,395,395; us 8,531,120; us 8,659,306; us 8,823,273; us 9,209,803; us 9,360,510; ep 2,351,220; ep 2,559,164; ep 2,656,189; hk 1,156,120; hk 1,157,080; sa 2001/2151; sa 2006/05363; sa 2014/01541; sa 2015/023634 iq switch ? , swipe switch?, proxsense ? , lightsense?, airbutton tm , proxfusion?, crystal driver? and the logo are trademarks of azoteq. the information in this datasheet is believed to be accurate at the time of publication. azoteq uses reasonable effort to ma intain the i nformation up - to - date and accurate, but does not warrant the accuracy, completeness or reliability of the information contained herein. all content and information are provided on an a s is basis only, without any representations or warranties, express o r implied, of any kind, including representations about the suitability of these products or information for any purpose. valu es in the datasheet is subject to change without notice, please ensure to always use the latest version of this document. applic ation specific operating conditions should be taken into account during design and verified before mass production. azoteq di sclaims all warranties and conditions with regard to these products and information, including but not limited to all implied warra nties and conditions of merchantability, fitness for a particular purpose, title and non - infringement of any third party intellectual property rights. azoteq assumes no liability for any damages or injury arising f rom any use of the information or the prod uct or caused by, without limitation, failure of performance, error, omission, interruption, defect, delay in operation or transmission, even if azoteq has been advised of the possibility of such damages. the applications mentioned herein are used solely f or the purpose of illustration and azoteq makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunct ion or otherwise. azoteq products are not authorized for use as critical components in life support devices or systems. no licenses to patents are granted, implicitly, express or implied, by estoppel or otherwise, under any intellect ual property rights. i n the event that any of the abovementioned limitations or exclusions does not apply, it is agreed that azoteqs total liability for all losses, damages and causes of action (in con tract, tort (including without limitation, negligence) or otherwise) will no t exceed the amount already paid by the customer for the products. azoteq reserves the right to alter its products, to make co rrections, deletions, modifications, enhancements, improvements and other changes to the content and information, its products, p rograms and services at any time or to move or discontinue any contents, products, programs or services without prior notific ation. for the most up - to - date information and binding terms and conditions please refer to www.azoteq.com www.azoteq.com/ip info@azoteq.com

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