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july 2009 doc id 8338 rev 6 1/15 15 STLVDS31B high speed differential line drivers features meets or exceeds the requirements of ansi tia/eia-644 standard low voltage differential signaling with typical output voltage of 350 mv and a 100 load typical output voltage rise and fall times of 750 ps (400 mbps) typical propagation delay times of 1.7 ns operates from a single 3.3 v supply power dissipation 25 mw typical per driver at 200 mhz driver at high impedance when disabled or with v cc = 0 v pin compatible with the am26ls31, sn65lvds31 low voltage ttl (lvttl ) logic input levels description the STLVDS31B is a quad differential line drivers that implements the electrical characteristics of low voltage differential signaling (lvds). this signaling technique lowers the output voltage levels of 5 v differential standard levels (such as tia/eia-422b) to reduce the power, increase the switching speeds and allows operations with a 3.3 v supply rail. any of the four current mode drivers will deliver a minimum differential output voltage magnitude of 247 mv into a 100 load when enabled. the intended application of this device and signalling technique is fo r point-to-point baseband data transmission over controlled impedancemedia approximately 100 . the transmission media may be printed circuit board traces, backplanes or cables. the ultimate rate and distance of data transfer is dependent upon the attenuation characteristics of the media and noise coupling to the environment. the STLVDS31B is characterized for operation from - 55 c to 125 c. tssop16 table 1. device summary order code temperature range package packaging STLVDS31Btr - 40 to 85 c tssop16 (tape and reel) 2500 parts per reel www.st.com obsolete product(s) - obsolete product(s)
contents STLVDS31B 2/15 doc id 8338 rev 6 contents 1 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 typical performance characteristi cs . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 obsolete product(s) - obsolete product(s)
STLVDS31B pin configuration doc id 8338 rev 6 3/15 1 pin configuration figure 1. pin connections and functional diagram table 2. pin description pin n symbol name and function 1, 7, 9, 15 1a to 4a driver inputs 2, 6, 10, 14 1y to 4y driver outputs 3, 5, 11, 13 1z to 4z driver outputs 4 g enable 12 g enable 8 gnd ground 16 v cc supply voltage obsolete product(s) - obsolete product(s)
pin configuration STLVDS31B 4/15 doc id 8338 rev 6 l = low level, h = high level, x = don?t care, z = high impedance figure 2. logic diagram and logic symbol table 3. truth table for receiver v id = v a - v b r v id 100 mv h - 100 mv < v id < 100 mv ? v id ? 100 mv l open h table 4. truth table input enables outputs agg yz hhxhl lhxlh hxlhl lxllh xlhzz open h x l h open x l l h obsolete product(s) - obsolete product(s)
STLVDS31B maximum ratings doc id 8338 rev 6 5/15 2 maximum ratings note: absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these condition is not implied. table 5. absolute maximum ratings symbol parameter value unit v cc supply voltage (1) 1. all voltages except differential i/o bus voltage, are with respect to t he network ground terminal. -0.5 to 4.6 v v i dc input voltage -0.5 to (v cc + 0.5) v t stg storage temperature range -65 to +150 c table 6. recommended operating conditions symbol parameter min. typ. max. unit v cc supply voltage 3.0 3.3 3.6 v v ih high level input voltage 2.0 v v ili low level input voltage 0.8 v t a operating temperature range -40 85 c obsolete product(s) - obsolete product(s)
electrical characteristics STLVDS31B 6/15 doc id 8338 rev 6 3 electrical characteristics over recommended operating conditions unless otherwise noted. all typical values are at t a = 25 c, and v cc = 3.3 v. table 7. electrical characteristics symbol parameter test condition min. typ. max. unit v od differential output voltage r l = 100 , figure 2 247 350 454 mv v od change in differential output voltage between logic state -50 50 mv v oc(ss) change in steady-state common mode output voltage between logic state figure 3 1.125 1.2 1.375 v v oc(ss) steady-state common mode output voltage figure 3 -50 50 mv v oc(pp) peak to peak common mode output voltage 80 150 mv i cc supply current v in = 0.8v or 2v, enabled, no load 11.5 20 ma v in = 0.8v or 2v, enabled, r l = 100 25 35 ma v in = 0 or v cc , disabled 0.3 1 ma i ih high level input current v ih = 2v 4 20 a i il low level input current v il = 0.8v 0.6 10 a i sc short circuit output current v o(y) or v o(z) = 0v 6.1 - 24 ma v od = 0 12 ma i oz high impedance output current v o = 0 or 2.4v 1a i cs cold spare leakage current v i = 3.6v, v dd = 0v 20 a i off power off output current v cc = 0, v o = 2.4v 1a c in input capacitance 3 pf obsolete product(s) - obsolete product(s)
STLVDS31B electrical characteristics doc id 8338 rev 6 7/15 over recommended operating conditions unless otherwise noted. all typical values are at t a = 25 c, and v cc = 3.3 v. table 8. switching characteristics (1) symbol parameter test condition min. typ. max. unit t plh propagation delay time, low to high output r l = 100 , c l = 10pf figure 2 0.5 1.4 2 ns t phl propagation delay time, high to low output 11.72.5ns t r differential output signal rise time 0.4 0.5 0.6 ns t f differential output signal fall time 0.4 0.5 0.6 ns t sk(p) pulse skew (|t thl = t tlh |) 0.3 0.6 ns t sk(o) channel to channel output skew (2) 00.3ns t pzh propagation delay time, high impedance to high level output figure 4 5.4 15 ns t pzl propagation delay time, high impedance to low level output 2.5 15 ns t phz propagation delay time, high level to high impedance output 8.1 15 ns t plz propagation delay time, low level to high impedance output 7.3 15 ns 1. rs-232 in to ttl-cmos out (from 50 % to 50 %). 2. t sk(o) is the maximum delay time differ ence between drivers on the same device. obsolete product(s) - obsolete product(s)
typical characteristics STLVDS31B 8/15 doc id 8338 rev 6 4 typical characteristics 1. all input pulse are supplied by a generator having the following characteristics: t r or t f 1 ns, pulse repetition rate (prr) = 50 mpps, pulse width = 10 0.2 ns. 2. c l includes instrumentation and fixture capacitance within 6 mm. of the d.u.t. 1. all input pulse are supplied by a generator having the following characteristics: t r or t f 1 ns, pulse repetition rate (prr) = 50 mpps, pulse width = 10 0.2 ns. 2. c l includes instrumentation and fixture capacitance within 6mm of the d.u.t 3. the measurement of v oc(pp) is made on test equipment with a -3 db bandwidth of at least 300 mhz. figure 3. voltage and current definitions figure 4. test circuit, timing and voltage definitions for differential output signal figure 5. test circuit and definitions for the driver common mode output voltage obsolete product(s) - obsolete product(s)
STLVDS31B typical characteristics doc id 8338 rev 6 9/15 1. all input pulse are supplied by a generator having the following characteristics: t r or t f 1 ns, pulse repetition rate (prr) = 0.5 mpps, pulse width = 500 10 ms. 2. c l includes instrumentation and fixture capacitance within 6 mm. of the d.u.t. figure 6. enable and disable time test circuit and waveform obsolete product(s) - obsolete product(s)
typical performance characteristics STLVDS31B 10/15 doc id 8338 rev 6 5 typical performance characteristics unless otherwise specified t j = 25 c figure 7. supply current vs. temperature figure 8. supply current vs. temperature figure 9. propagation delay enable to output figure 10. propagation delay time figure 11. differential output signal obsolete product(s) - obsolete product(s)
STLVDS31B package mechanical data doc id 8338 rev 6 11/15 6 package mechanical data 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. obsolete product(s) - obsolete product(s)
package mechanical data STLVDS31B 12/15 doc id 8338 rev 6 dim. mm. inch. min. typ. max. min. typ. max. a 1.2 0.047 a1 0.05 0.15 0.002 0.004 0.006 a2 0. 8 1 1.05 0.0 3 1 0.0 39 0.041 b 0.1 9 0. 3 0 0.007 0.012 c0.0 9 0.20 0.004 0.007 9 d4. 9 5 5.1 0.1 93 0.1 9 7 0.201 e 6.2 6.4 6.6 0.244 0.252 0.260 e1 4. 3 4.4 4.4 8 0.16 9 0.17 3 0.176 e 0.65 b s c 0.0256 b s c k0 8 0 8 l 0.45 0.60 0.75 0.01 8 0.024 0.0 3 0 t ss op16 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 00 8 0 338 d obsolete product(s) - obsolete product(s)
STLVDS31B package mechanical data doc id 8338 rev 6 13/15 dim. mm. inch. min. typ. max. min. typ. max. a 33 0 12. 99 2 c 12. 8 1 3 .2 0.504 0.51 9 d 20.2 0.7 9 5 n60 2. 3 62 t 22.4 0. 88 2 ao 6.7 6. 9 0.264 0.272 bo 5. 3 5.5 0.20 9 0.217 ko 1.6 1. 8 0.06 3 0.071 po 3 . 9 4.1 0.15 3 0.161 p7. 98 .1 0. 3 11 0. 3 1 9 tape & reel t ss op16 mechanical data obsolete product(s) - obsolete product(s)
revision history STLVDS31B 14/15 doc id 8338 rev 6 7 revision history table 9. document revision history date revision changes 28-mar-2006 5 order codes updated. 15-jul-2009 6 modified : features on page 1 . obsolete product(s) - obsolete product(s)
STLVDS31B doc id 8338 rev 6 15/15 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 any 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 parti cular 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 an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, 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. ? 2009 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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