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document number: 84672 for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com www.vishay.com rev. 1.5,16-sep-09 1 infrared transceiver, 9.6 kbit /s to 115.2 kbit/s (sir) TFBS4650 vishay semiconductors description the TFBS4650 is one of the smallest irda ? compliant transceivers available. it supports data rates up to 115 kbit/s. the transceiver consists of a pin photodiode, infrared emitter, and control ic in a single package. features ? compliant with the irda physical layer irphy 1.4 (low power specification, 9.6 kbit/s to 115.2 kbit/s) ? link distance: 30 cm/20 cm full 15 cone with standard or low power irda, respectively. emission intensity can be set by an external resistor to increase the range for extended low power spec to > 50 cm ? typical transmission distance to standard device: 50 cm ? small package (l x w x h in mm): 6.8 x 2.8 x 1.6 ? low current consumption 75 a idle at 3.6 v ? shutdown current 10 na typical at 25 c ? operates from 2.4 v to 3.6 v within specification over full temperature range from - 25 c to + 85 c ? split power supply, emitter can be driven by a separate power supply not loading the regulated. u.s. pat. no. 6,157,476 ? qualified for lead (pb)-free and sn/pb processing (msl4) ? compliant to rohs directive 2002/95/ec and in accordance to weee 2002/96/ec applications ? mobile phone ?pdas 20206 product summary part number data rate (kbit/s) dimensions h x l x w (mm x mm x mm) link distance (m) operating voltage (v) idle supply current (ma) TFBS4650 115.2 1.6 x 6.8 x 2.8 0 to 0.3 2.4 to 3.6 0.075 parts table part description qty/reel TFBS4650-tr1 oriented in carrier tape for side view surface mounting 1000 pcs TFBS4650-tr3 oriented in carrier tape for side view surface mounting 2500 pcs TFBS4650-tr4 oriented in carrier tape for side view surface mounting 6000 pcs TFBS4650-tt3 oriented in carrier tape for top view surface mounting 2500 pcs
TFBS4650 vishay semiconductors infrared transceiver, 9.6 kbit /s to 115.2 kbit/s (sir) www.vishay.com for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com document number: 84672 2 rev. 1.5,16-sep-09 functional block diagram pinout TFBS4650, bottom view weight 0.05 g definitions: in the vishay transceiver datasheets the following nomenclature is used for defini ng the irda operating modes: sir: 2.4 kbit/s to 115.2 kbit/s, equivalent to the basic serial infrared standard with the physical layer version irphy 1.0 mir: 576 kbit/s to 1152 kbit/s fir: 4 mbit/s vfir: 16 mbit/s mir and fir were implemented with irphy 1.1, followed by irphy 1.2, adding the sir lo w power standard. irphy 1.3 extended the low power option to mir and fir and vfir was added with irphy 1.4. a new version of the standard in any case obsoletes the former version. ired dri v er txd sd g n d v cc ireda rxd amplifier comparator tri-state dri v er mode control pd ired asic iredc 192 8 3 pin description pin number symbol description i/o active 1 ireda ired anode, connected via a current limiting resistor to v cc2 . a separate unregulated power supply can be used. 2 iredc ired cathode, do not connect for standard operation. 3txd transmitter data input. setting this input abov e the threshold turns on the transmitter. this input switches the ired with the ma ximum transmit pulse width of about 100 s. ihigh 4rxd receiver output. normally high, goes low for a defined pulse duration with the rising edge of the optical input signal. output is a cmos tri-state driver, which swings between ground and v cc . receiver echoes transmitter output. o low 5sd shutdown. logic low at this input enables the receiver, enables the transmitter, and un-tri-states the receiver output. it mu st be driven high for shutting down the transceiver. ihigh 6v cc power supply, 2.4 v to 3.6 v. this pin prov ides power for the receiver and transmitter drive section. connect v cc1 via an optional filter. 7 gnd ground 19284
TFBS4650 infrared transceiver, 9.6 kbi t/s to 115.2 kbit/s (sir) vishay semiconductors document number: 84672 for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com www.vishay.com rev. 1.5,16-sep-09 3 note reference point pin, ground unless otherwise noted. typical values are for design aid only, not guaranteed nor subject to production testing. (1) sn/lead (pb)-free soldering. the product passed vishay?s standard conv ection reflow profile soldering test. note vishay transceivers operating inside t he absolute maximum ratings are classifi ed as eye safe according the above table. absolute maximum ratings parameter test conditions symbol min. typ. max. unit supply voltage range, transceiver 0 v < v cc2 < 6 v v cc1 - 0.5 6 v supply voltage range, transmitter 0 v < v cc1 < 3.6 v v cc2 - 0.5 6 v voltage at rxd all states v in - 0.5 v cc + 0.5 v input voltage range, transmitter txd independent of v cc1 or v cc2 v in - 0.5 6 v input currents for all pins, except ired anode pin - 40 40 ma output sinking current 20 ma power dissipation p d 250 mw junction temperature t j 125 c ambient temperature range (operating) t amb - 25 + 85 c storage temperature range t stg - 40 + 100 c soldering temperature (1) see section ?recommended solder profile? c repetitive pulse output current < 90 s, t on < 20 % i ired (rp) 500 ma average output current (transmitter) i ired (dc) 100 ma eye safety information standard classification iec/en 60825-1 (2007-03), din en 60825-1 ( 2008-05) ?safety of laser products - part 1: equipment classification and requirements?, simplified method class 1 iec 62471 (2006), cie s009 (2002) "photobiological safety of lamps and lamp systems" exempt directive 2006/25/ec of the european parliament and of the council of 5 th april 2006 on the minimum health and safety requirements regarding the exposure of workers to risks arising from physical agents (artificial optical radiation) (19 th individual directive within the meaning of article 16(1) of directive 89/391/eec) exempt
TFBS4650 vishay semiconductors infrared transceiver, 9.6 kbit /s to 115.2 kbit/s (sir) www.vishay.com for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com document number: 84672 4 rev. 1.5,16-sep-09 notes t amb = 25 c, v cc = 2.4 v to 3.6 v unless otherwise noted. typical values are for design aid only, not guaranteed nor subject to production testing. electrical characteristics parameter test conditions symbol min. typ. max. unit transceiver supply voltage range v cc 2.4 3.6 v dynamic supply current idle, dark ambient sd = low (< 0.8 v), e eamb = 0 klx, e e < 4 mw/m 2 - 25 c t + 85 c i cc 90 130 a idle, dark ambient sd = low (< 0.8 v), e eamb = 0 klx, e e < 4 mw/m 2 t = + 25 c i cc 75 a peak supply current during transmission sd = low, txd = high i ccpk 23ma shutdown supply current dark ambient sd = high (> v cc - 0.5 v), t = 25 c, e e = 0 klx i sd 0.1 a shutdown supply current, dark ambient sd = high (> v cc - 0.5 v), - 25 c t + 85 c i sd 1a operating temperature range t a - 25 + 85 c input voltage low (txd, sd) v il - 0.5 0.5 v input voltage high v cc = 2.4 v to 3.6 v v ih v cc - 0.5 6 v input voltage threshold sd v cc = 2.4 v to 3.6 v 0.9 1.35 1.8 v output voltage low v cc = 2.4 v to 3.6 v c load = 15 pf v ol - 0.5 v cc x 0.15 v output voltage high v cc = 2.4 v to 3.6 v c load = 15 pf v oh v cc x 0.8 v cc + 0.5 v rxd to v cc pull-up impedance sd = v cc v cc = 2.4 v to 5 v r rxd 500 k input capacitance (txd, sd) c i 6pf
TFBS4650 infrared transceiver, 9.6 kbi t/s to 115.2 kbit/s (sir) vishay semiconductors document number: 84672 for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com www.vishay.com rev. 1.5,16-sep-09 5 notes (1) t amb = 25 c, v cc = 2.4 v to 3.6 v unless otherwise noted. typical values ar e for design aid only, not guar anteed nor subject to production testing. (2) this parameter reflects the backlight test of the irda physical layer specification to guarantee i mmunity against light from fl uorescent lamps. (3) irda sensitivity definition: minimum irradiance e e in angular range, power per unit area. the rece iver must meet the ber specification while the source is operating at the minimum in tensity in angular range into the minimum half-angular range at t he maximum link lengt h. (4) maximum irradiance e e in angular range, power per unit area. the optical delive red to the detector by a source operating at the maximum intensity in angular range at minimum link length must not caus e receiver overdrive distortion and possible related link errors . if placed at the active output interface reference plane of the transmitter, the rece iver must meet its bit error ratio (ber) spec ification. for more definitions see the document ?symbols and termi nology? on the vishay website. (5) rxd output is edge triggered by the rising edge of the optical i nput signal. the output pulse duration is independent of the in put pulse duration. (6) the radiant intensity can be adjusted by t he external current limiting resistor to adapt the intensity to the desired value. th e given value is for minimum current consumption. this transceiver can be adapted to > 50 cm operation by increasing the current to > 200 ma, e.g. o perating the transceiver without current control resistor (i.e. r1 = 0 ) and using the internal current control. optoelectronic characteristics (1) parameter test conditions symbol min. typ. max. unit receiver sensitivity: minimum irradiance e e in angular range (2)(3) 9.6 kbit/s to 115.2 kbit/s = 850 nm to 900 nm e e 40 (4) 81 (8.1) mw/m 2 (w/cm 2 ) maximum irradiance e e in angular range = 850 nm to 900 nm e e 5 (500) kw/m 2 (mw/cm 2 ) no receiver output input irradiance (4) according to irda irphy 1.4, appendix a1, fluorescent light specification e e 4 (0.4) mw/m 2 (w/cm 2 ) rise time of output signal 10 % to 90 %, c l = 15 pf t r (rxd) 20 100 ns fall time of output signal 90 % to 10 %, c l = 15 pf t f (rxd) 20 100 ns rxd pulse width of output signal, 50 % (5) input pulse width 1.63 s t pw 1.7 2 2.9 s receiver start up time power on delay 100 150 s latency t l 50 200 s transmitter ired operating current, current controlled the ired current is internally controlled but al so can be reduced by an external resistor r1 i d 200 400 ma output leakage ired current t amb = 85 c i ired 1a output radiant intensity (6) = 0, 15, txd = high, sd = low, v cc1 = 3 v, v cc2 = 3 v, r1 = 30 (resulting in about 50 ma drive current) i e 4 150 mw/sr output radiant intensity (6) = 0, 15, txd = high, sd = low, v cc1 = 3 v, v cc2 = 3 v, r1 = 0 , i f = 300 ma i e 25 mw/sr output radiant intensity (6) v cc1 = 5 v, = 0, 15 txd = low or sd = high (receiver is inactive as long as sd = high) i e 0.04 mw/sr saturation voltage of ired driver v cc = 3 v, i f = 50 ma v cesat 0.4 v peak - emission wavelength p 880 886 900 nm optical rise time, optical fall time t ropt , t fopt 20 100 ns optical output pulse duration input pulse width t < 30 s input pulse width t 30 s t opt t opt 30 t 50 300 s s optical output pulse duration input pulse width t = 1.63 s t opt 1.45 1.61 2.2 s optical overshoot 20 %
TFBS4650 vishay semiconductors infrared transceiver, 9.6 kbit /s to 115.2 kbit/s (sir) www.vishay.com for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com document number: 84672 6 rev. 1.5,16-sep-09 recommended circuit diagram operated at a clean low impedance power supply the TFBS4650 needs only one additional external component when the ired drive current should be minimized for minimum current consumption according the low power irda standard. when combined operation in irda and remote control is intended no curr ent limiting resistor is recommended. however, depending on the entire system design and board layout, additional components may be required (see fig. 1). when long wires are used for bench tests, the capacitors are mandatory for testing ri se/fall time correctly. fig. 1 - recommended application circuit the capacitor c1 is buffering the supply voltage v cc2 and eliminates the inductance of the power supply line. this one should be a small ceramic version or other fast capacitor to guarantee the fast rise time of the ired current. the resistor r1 is necessary for controlli ng the ired drive current when the internally controlled current is too high for the application. vishay transceivers integrate a sensitive receiver and a built-in power driver. the combination of both needs a careful circuit board layout. t he use of thin, long, resistive and inductive wiring should be avoided. the inputs (txd, sd) and the output rxd should be directly (dc) coupled to the i/o circuit. the capacitor c2 combined with the resistor r2 is the low pass filter for smoothing the supply voltage. as already stated above r2, c1 and c2 are optional and depend on the quality of the supply voltages v ccx and injected noise. an unstable power supply with dropping voltage during transmission may reduce the sensitivity (and transmission range) of the transceiver. the placement of these parts is critical. it is strongly recommended to position c2 as close as possible to the transceiver power supply pins. when connecting the described circuit to the power supply, low impedance wiring should be used. in case of extended wiring the inductance of the power supply can cause dynamically a voltage drop at v cc2 . often some power supplies are not able to follow the fast current is rise time. in that case another 10 f cap at v cc2 will be helpful. keep in mind that basic rf-design rules for circuit design should be taken into account. especially longer signal lines should not be used without termi nation. see e.g. ?the art of electronics? paul horowitz, wienfield hill, 1989, cambridge university press, isbn: 0521370957. table 1 - truth table inputs outputs sd txd optical input irradiance mw/m 2 rxd transmitter high x x tri-state floating with a weak pull-up to the supply voltage 0 low high x low (echo on) i e low high > 50 s x high 0 low low < 4 high 0 low low > min. irradiance e e < max. irradiance e e low (active) 0 low low > max. irradiance e e x0 ired anode v cc ground v cc2 v cc1 gnd sd sd txd rxd r2 c1 c2 ired cathode 19286 r1 txd rxd table 2 - recommended application circuit components component recommended value c1, c2 0.1 f, ceramic vishay part# vj 1206 y 104 j xxmt r1 see table 3 r2 47 , 0.125 w (v cc1 = 3 v) table 3 - recommended resistor r1 ( ) v cc2 (v) minimized current consumption, irda low power compliant 2.7 24 330 3.3 36
TFBS4650 infrared transceiver, 9.6 kbi t/s to 115.2 kbit/s (sir) vishay semiconductors document number: 84672 for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com www.vishay.com rev. 1.5,16-sep-09 7 recommended solder profiles solder profile for sn/pb soldering fig. 2 - recommended solder profile for sn/pb soldering lead (pb)-free, recomm ended solder profile the TFBS4650 is a lead (pb)-free transceiver and qualified for lead (pb)-free processing. for lead (pb)-free solder paste like sn (3.0 - 4.0) ag (0.5 - 0.9) cu, there are two standard reflow profiles: ramp-soak-spike (rss) and ramp-to-spike (rts). the ramp-soak-spike profile was developed primarily for reflow ovens heated by infrared radiation. with widespread use of forced convection reflow ovens the ramp-to-spike profile is us ed increasingly. shown in figure 3 is vishay?s recommen ded profiles for use with the TFBS4650 transceivers. for more details please refer to the application note ?smd assembly instructions?. wave soldering for tfduxxxx and tfbsxxxx transceiver devices wave soldering is not recommended. manual soldering manual soldering is the standard method for lab use. however, for a production process it cannot be recommended because the risk of damage is highly dependent on the experience of the operator. nevertheless, we added a chapter to the above mentioned application note, describing manual soldering and desoldering. storage the storage and drying processe s for all vishay transceivers (tfduxxxx and tfbsxxx) ar e equivalent to msl4. the data for the drying procedur e is given on labels on the packing and also in the application note ?taping, labeling, storage and packing?. fig. 3 - solder profile, rss recommendation 0 20 40 60 8 0 100 120 140 160 1 8 0 200 220 240 260 0 50 100 150 200 250 300 350 time (s) temperat u re (c) 2 c/s to 4 c/s 2 c/s to 4 c/s 10 s max. at 230 c 120 s to 1 8 0 s 160 c max. 240 c max. 90 s max. 19431 0 20 40 60 8 0 100 120 140 160 1 8 0 200 220 240 260 2 8 0 0 50 100 150 200 250 300 350 time/s temperat u re/c 20 s 2 c...4 c/s 2 c...4 c/s 90 s...120 s t 217 c for 50 s max t peak = 260 c max. 50 s max. t 255 c for 20 s max 19261
TFBS4650 vishay semiconductors infrared transceiver, 9.6 kbit /s to 115.2 kbit/s (sir) www.vishay.com for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com document number: 84672 8 rev. 1.5,16-sep-09 package dimensions in millimeters fig. 4 - TFBS4650 mechanical dimensions, tole rance 0.2 mm, if not otherwise mentioned fig. 5 - TFBS4650 soldering footprint, tolerance 0.2 mm, if not otherwise mentioned 19322 19729
TFBS4650 infrared transceiver, 9.6 kbi t/s to 115.2 kbit/s (sir) vishay semiconductors document number: 84672 for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com www.vishay.com rev. 1.5,16-sep-09 9 reel dimensions in millimeters 14017 dra w ing- n o.: 9. 8 00-5090.01-4 iss u e: 1; 29.11.05 tape width (mm) a max. (mm) n (mm) w 1 min. (mm) w 2 max. (mm) w 3 min. (mm) w 3 max. (mm) 16 330 50 16.4 22.4 15.9 19.4
TFBS4650 vishay semiconductors infrared transceiver, 9.6 kbit /s to 115.2 kbit/s (sir) www.vishay.com for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com document number: 84672 10 rev. 1.5,16-sep-09 tape dimensions for tr1 and tr3 in millimeters 197 8 3
TFBS4650 infrared transceiver, 9.6 kbi t/s to 115.2 kbit/s (sir) vishay semiconductors document number: 84672 for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com www.vishay.com rev. 1.5,16-sep-09 11 tape dimensions for tr4 in millimeters 20 8 72
TFBS4650 vishay semiconductors infrared transceiver, 9.6 kbit /s to 115.2 kbit/s (sir) www.vishay.com for technical questions within your region, please contact one of the following: irdasupportam@vishay.com , irdasupportap@vishay.com , irdasupporteu@vishay.com document number: 84672 12 rev. 1.5,16-sep-09 tape dimensions for tt3 in millimeters 21663 dra w ing- n o.: 9.700-5340.01-4 iss u e: 1; 15.01.09 progressi v e direction specifications according to di n technical dra w ings 4 0.32 16 7.5 1.75 3.1 2 7.1 emitter detector 2 8 ? 1.5 ? 1.5 2 4 max. 8 max.
document number: 91 000 www.vishay.com revision: 11-mar-11 1 disclaimer legal disclaimer notice vishay all product, product specifications and data ar e subject to change without notice to improve reliability, function or design or otherwise. vishay intertechnology, inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectivel y, vishay), disclaim any and all liability fo r any errors, inaccuracies or incompleteness contained in any datasheet or in any o ther disclosure relating to any product. vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. to the maximum extent permitted by applicab le law, vishay disc laims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, incl uding without limitation specia l, consequential or incidental dama ges, and (iii) any and all impl ied warranties, including warran ties of fitness for particular purpose, non-infringement and merchantability. statements regarding the suitability of pro ducts for certain types of applications are based on vishays knowledge of typical requirements that are often placed on vishay products in gene ric applications. such statements are not binding statements about the suitability of products for a partic ular application. it is the customers responsibility to validate that a particu lar product with the properties described in th e product specification is su itable for use in a particul ar application. parameters provided in datasheets an d/or specifications may vary in different applications and perfo rmance may vary over time. all operating parameters, including typical pa rameters, must be validated for each customer application by the customers technical experts. product specifications do not expand or otherwise modify vishays term s and conditions of purchase, including but not limited to the warranty expressed therein. except as expressly indicated in writing, vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the vishay product co uld result in person al injury or death. customers using or selling vishay products not expressly indicated for use in such applications do so at their own risk and agr ee to fully indemnify and hold vishay and it s distributors harmless from and against an y and all claims, liabilities, expenses and damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that vis hay or its distributor was negligent regarding the design or manufact ure of the part. please contact authorized vishay personnel t o obtain written terms and conditions regarding products designed fo r such applications. no license, express or implied, by estoppel or otherwise, to any intelle ctual property rights is gran ted by this document or by any conduct of vishay. product names and markings noted herein may be trademarks of their respective owners.

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