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this is information on a product in full production. january 2013 doc id 16470 rev 5 1/18 18 sta1102r 3 gbps, 2 differential-pair channel esata signal re-driver datasheet - production data features supports esata data rate of 1.5 gbps and 3gbps supports complete esata bus of two 2-wire differential-pair channels squelch detector for validity of input differential signal single operating supply (v cc ) range of 3.3 v 10% low power mode 100 cml i/os esata hot plug capable low capacitance on all channels 1-bit input equalizer regenerates the receiver attenuated signal 1-bit adjustable pre-emphasis and driver to drive the transmitter outputs over long pcb track lengths low output skew and jitter low ground bounce available in qfn20 (4 x 4 mm) package footprint with flow-through pinout 0 c to 85 c operating temperature range table 1. device summary order code package packing STA1102RUTR qfn20 (4 x 4 mm) tape and reel qfn20 (4 x 4 mm) www.st.com obsolete product(s) - obsolete product(s)
contents sta1102r 2/18 doc id 16470 rev 5 contents 1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.1 equalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 pre-emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.3 input termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.4 low power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.4.1 hardware low power mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.4.2 auto low power mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.5 squelch detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 7 recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 11 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 9 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 obsolete product(s) - obsolete product(s)
sta1102r description doc id 16470 rev 5 3/18 1 description the sta1102r device is a serial data signal re-driver. it integrates two differential-pair channels suitable for esata signals up to a 3 gbps data rate, in compliance with the sata rev 2.6 specification. an input detector is available at each channel, which constantly monitors the input signal level for output squelch functionality. if the detected differential input is below a defined threshold, the output is biased to the common mode voltage. high-speed data paths and the flow-through pinout minimize internal device jitter and simplify board layout. the integrated input equalizer improves signal integrity at the receiver due to effects from lossy cables. a 1-bit adjustabl e pre-emphasis is also integrated to drive the transmitter outputs over long pcb track lengths. the device can be set to a low-power mode by disabling the output current drivers through the en pin. obsolete product(s) - obsolete product(s)
block diagram sta1102r 4/18 doc id 16470 rev 5 2 block diagram figure 1. sta1102r block diagram obsolete product(s) - obsolete product(s)
sta1102r block diagram doc id 16470 rev 5 5/18 figure 2. pin configuration - top view !-6 $ ).?$ ).?$ '.$ 6## /54?$ /54?$ %. ).?$ $ 6## ).?$ '.$ /54?$ /54?$ 6## 6## '.$ % % obsolete product(s) - obsolete product(s)
block diagram sta1102r 6/18 doc id 16470 rev 5 table 2. pin description pin number pin name type function 1 in_d1+ input in_d1+ makes a differential pair with in_d1- 2 in_d1- input in_d1- makes a differential pair with in_d1+ 3 gnd power ground 4 out_d2- output out_d2- makes a differential pair with out_d2+ 5 out_d2+ output out_d2+ makes a differential pair with out_d2- 6 vcc power 3.3 v dc supply 7 en input output driver enable pin; when low, device enters low power mode (internal 360 k pull-up resistor to v cc ) 8 d2 input channel 2 pre-emphasis selection (internal 360 k pull-down resistor to gnd) 9 d1 input channel 1 pre-emphasis selection (internal 360 k pull-down resistor to gnd) 10 vcc power 3.3 v dc supply 11 in_d2+ input in_d2+ makes a differential pair with in_d2- 12 in_d2- input in_d2- makes a differential pair with in_d2+ 13 gnd power ground 14 out_d1- output out_d1- makes a differential pair with out_d1+ 15 out_d1+ output out_d1+ makes a differential pair with out_d1- 16 vcc power 3.3 v dc supply 17 e1 input channel 1, input equalization selection (internal 360 k pull down resistor to gnd) 18 e2 input channel 2, input equalization selection (internal 360 k pull down resistor to gnd) 19 gnd power ground 20 vcc power 3.3 v dc supply obsolete product(s) - obsolete product(s)
sta1102r functional description doc id 16470 rev 5 7/18 3 functional description 3.1 equalizer the adjustable input equalizer reduces system jitter and attenuation from long or lossy cables. shaping is performed by the gain stage of the equalizer to compensate the signal. note: 9 db eq is useful for signal recovery over long pcb track, e.g. 10? fr4. 3.2 pre-emphasis the sta1102r provides at each output a differential pair of 1-bit programmable pre- emphasis to compensate for losses across long pcb tracks and interconnects after the re- driver output. below, the truth table of the pre-emphasis control is shown: table 3. input equalizer truth table en e1 e2 function 0xx low power mode: input stage disabled for minimum power consumption 100 normal operation mode: both ch1 and ch2 7db eq 101 normal operation mode: ch1 7db eq; ch2 9db eq 110 normal operation mode: ch1 9db eq; ch2 7db eq 111 normal operation mode: both ch1 and ch2 9db eq table 4. pre-emphasis truth table en d1 d2 functions 0xx low power mode: output driver disabled; output driven to hiz 100 normal operation mode: both ch1 and ch2 0 db pre-emphasis 101 normal operation mode: ch1 0 db pre-emphasis; ch2 2.5 db pre-emphasis 110 normal operation mode: ch1 2.5 db pre-emphasis; ch2 0 db pre-emphasis 111 normal operation mode: both ch1 and ch2 2.5 db pre-emphasis obsolete product(s) - obsolete product(s)
functional description sta1102r 8/18 doc id 16470 rev 5 3.3 input termination the sta1102r integrates precise 50 10% termination resistors, pulled up to v cm , on all its differential input channels. external terminations are not required. this gives improved performance and also minimizes the pcb board space. these on-chip termination resistors should match the differential characteristic impedance of the transmission line. 3.4 low power modes there are 2 types of low power modes in the sta1102r: hardware low and auto low power modes. 3.4.1 hardware low power mode the en input activates a hardware low power mode. there is an internal pull-up resistor to maintain the en in the default (high) state. when this low power mode is activated (en = l), all input and output buffers and internal bias circuitry are powered off and disabled. outputs are driven to hiz in low power mode. there is a delay associated with entering (max. 2 s) and exiting (max. 20 s) this hardware low power mode. 3.4.2 auto low power mode the auto low power mode is activated when differential voltage at either or both of the channels is < 50 mv for more than 3 s. during this low power mode, output of the associated channel is driven to v cm and the selective circuit block is disabled to lower power consumption. the delay associated with exiting the auto low power mode is 50 ns max. 3.5 squelch detector a squelch detector is integrated on the input of each of the 2 data paths. the squelch detector is a high-speed amplitude comparator that is turned on when en = h. the differential input signal is monitored by the detector. when the differential input is detected to be less than or equal to 50 mv, the input signal is considered an invalid signal and is not passed to the output. when this happens, the corresponding output is biased to v cm . when the differential input is greater than or equal to 150 mv, the input signal is considered valid signal and is passed to the output. the integration of the squelch detector helps the system to prevent responding to noises. as such, it enables the device to fully support oob signaling. obsolete product(s) - obsolete product(s)
sta1102r application diagram doc id 16470 rev 5 9/18 4 application diagram figure 3. typical application diagram note: typical circuit above is shown with chi1 pre-emp of 0 db, eq of 7 db; ch2 pre-emp of 2.5 db, eq of 7 db. obsolete product(s) - obsolete product(s)
absolute maximum ratings sta1102r 10/18 doc id 16470 rev 5 5 absolute maximum ratings absolute maximum ratings are those values above which damage to the device may occur. functional operation under these conditions is not implied. all voltages are referenced to gnd. 6 thermal data table 5. absolute maximum ratings symbol parameter value unit v cc supply voltage to ground -0.5 to + 4.0 v v i differential pair ios voltage range -0.5 to + 4.0 v control ios voltage range -0.5 to + 4.0 v t stg storage temperature -65 to + 150 c v esd electrostatic discharge voltage (human body model jesd22- a114c.01) differential input and output data pins 12 kv all other pins 8 table 6. qfn20 package thermal data symbol parameter qfn20 unit ja thermal coefficient (junction-ambient) 45 c/
sta1102r recommended operating conditions doc id 16470 rev 5 11/18 7 recommended operating conditions electrical characteristics (t a = 0 to 85 c, v cc = 3.0 v to 3.6 v unless otherwise specified). table 7. recommended operating conditions symbol parameter test conditions min. typ. max. unit v cc supply voltage - 3.0 3.3 3.6 v t a operating ambient temperature - 0 - 85 c c c coupling capacitor - - 12 - nf d r data rate - - - 3.0 gbps table 8. dc electrical characteristic symbol parameter test conditions min. typ. max. unit general parameter characteristics i cc_standby standby mode supply current en = l - - 300 a i cc_active active mode supply current v diff_rx = 700 mv, k28.5 pattern running at 3 gbps d1 = d2 = h --80ma i cc_squelch v diff_rx v th , en = h d1= d2 = h --45ma t pd data propagation delay - - - 400 ps t dis device disable time en = h to l - - 2 s t en device enable time en = l to h - - 20 s control logic characteristics v ih input logic high voltage - 1.4 - - v v il input logic low voltage - - - 0.5 v i ih input logic high current - -15 - 15 a i il input logic low current - -15 - 15 a squelch detector characteristics v th squelch threshold voltage - 50 - 150 mv pp t enter squelch mode enter - - - 5 ns t exit squelch mode exit - - - 5 ns obsolete product(s) - obsolete product(s)
recommended operating conditions sta1102r 12/18 doc id 16470 rev 5 ac/dc specifications for receiver v diff_rx differential input peak-to-peak voltage d r = 3.0 gbps 200 - 1600 mv pp v cm_rx common mode voltage - - 0 - v z diff_rx differential input impedance - 85 100 115 z se_rx single-ended input impedance - 40 - - rl diff_rx differential input return loss f = 100 mhz to 300 mhz 18 - - db f = 300 mhz to 600 mhz 14 - - db f = 600 mhz to 1200 mhz 10 - - db f = 1.2 ghz to 2.4 ghz 8 - - db f = 2.4 ghz to 3.0 ghz 3 - - db table 8. dc electrical characteristic (continued) symbol parameter test conditions min. typ. max. unit table 9. ac electrical characteristic symbol parameter test conditions min. typ. max. unit rl cm_rx common mode input return loss f = 100 mhz to 300 mhz 5 - - db f = 300 mhz to 600 mhz 5 - - db f = 600 mhz to 1200 mhz 2 - - db f = 1.2 ghz to 2.4 ghz 1 - - db f = 2.4 ghz to 3.0 ghz 1 - - db t r/f_rx input rise/fall time 20% to 80% 67 - 136 ps t skew_rx input differential skew mid-point of rx+ to mid-point of rx- - - 50 ps ac/dc specifications for transmitter v diff_tx differential output peak-to-peak voltage f = 1.5 ghz; d1/d2 = l 400 - 600 mv pp f = 1.5 ghz; d1/d2 = h 600 - 800 mv pp v cm_tx common mode voltage - - 2.1 - v z diff_tx differential output impedance - 85 100 115 z se_tx single-ended output impedance -40-- rl diff_tx differential output return loss f = 100 mhz to 300 mhz 14 - - db f = 300 mhz to 600 mhz 8 - - db f = 600 mhz to 1200 mhz 6 - - db f = 1.2 ghz to 2.4 ghz 6 - - db f = 2.4 ghz to 3.0 ghz 3 - - db obsolete product(s) - obsolete product(s)
sta1102r recommended operating conditions doc id 16470 rev 5 13/18 figure 4. jitter measurement setup rl cm_tx common mode output return loss f = 100 mhz to 300 mhz 5 - - db f = 300 mhz to 600 mhz 5 - - db f = 600 mhz to 1200 mhz 2 - - db f = 1.2 ghz to 2.4 ghz 1 - - db f = 2.4 ghz to 3.0 ghz 1 - - db t r/f_tx output rise/fall time 20% to 80% 67 - 136 ps t skew_tx output differential skew mid-point of rx+ to mid-point of rx- - - 20 ps tj tx tot a l j itt e r d r = 3 gbps; k28.5 pattern - 0.2 0.3 ui pp dj tx deterministic jitter d r = 3 gbps; k28.5 pattern - 0.13 0.2 ui pp rj tx random jitter d r = 3 gbps; k28.7 pattern - 2.0 2.15 ps rms table 9. ac electrical characteristic (continued) symbol parameter test conditions min. typ. max. unit 67$5 ,1b' ,1b' 287b' 287b' +267 '(9,&( h6$7$ frpsoldqfh phdvxuhphqwsrlqw h6$7$ frpsoldqfh phdvxuhphqwsrlqw 5 ) 5 ) 67$5 ,1b' ,1b' 287b' 287b' +267 '(9,&( h6$7$ frpsoldqfh phdvxuhphqwsrlqw h6$7$ frpsoldqfh phdvxuhphqwsrlqw 5 ) 5 ) obsolete product(s) - obsolete product(s)
package information sta1102r 14/18 doc id 16470 rev 5 8 package information in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack specifications, grade definitions and product status are available at: www.st.com . ecopack is an st trademark. figure 5. package outline for qfn20 (4 x 4 x 0.8 mm) - pitch 0.5 mm obsolete product(s) - obsolete product(s)
sta1102r package information doc id 16470 rev 5 15/18 table 10. STA1102RUTR - mechanical data for qfn20 (4 x 4 x 0.8 mm) - pitch 0.5 mm table 11. STA1102RUTR - exposed pad variations symbol dimensions millimeters min. typ. max. a 0.700.750.80 a1 - 0.02 - a2 - 0.65 - a3 - 0.20 - b 0.180.250.30 d 3.854.004.15 d2 see exposed pad variations e 3.854.004.15 e2 see exposed pad variations e 0.450.500.55 l 0.450.550.65 variation d2 e2 min. typ. max. min. typ. max. a 2.002.102.202.002.102.20 obsolete product(s) - obsolete product(s)
package information sta1102r 16/18 doc id 16470 rev 5 figure 6. STA1102RUTR - footprint recommendation for qfn20 (4 x 4 x 0.8 mm) - pitch 0.5 mm 34!2542 .?&2! &//402).42%#/--%.$%$ % $ /04)/.h!v obsolete product(s) - obsolete product(s)
sta1102r revision history doc id 16470 rev 5 17/18 9 revision history table 12. document revision history date revision changes 19-oct-2009 1 initial release. 08-jan-2010 2 updated: figure 1 , figure 2 , ta b l e 2 , section 2.1 , section figure 3. and ta ble 5 . 12-mar-2010 3 updated package information. replaced d1 with d2 and d0 with d1. 04-feb-2011 4 document reformatted, added contents , updated ta b l e 5 , corrected typo in figure 1 , ta ble 2 , ta b l e 3 , section 3.2 , section 3.4.1 , section 3.5 , figure 3 , figure 5 , figure 6 , ta b l e 8 , ta b l e 1 1 . 31-jan-2013 5 updated temperature in features (replaced -40 by 0). minor corrections throughout document. obsolete product(s) - obsolete product(s)
sta1102r 18/18 doc id 16470 rev 5 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at an y time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a particular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by two authorized st representatives, st products are not recommended, authorized or warranted for use in military, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2013 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com obsolete product(s) - obsolete product(s)

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