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STLVDS31 High speed differential line drivers Feature summary s Meets or exceeds the requirements of ansi TIA/EIA-644 standard Low voltage differential signaling with typical output voltage of 350mV and a 100 load Typical output voltage rise and fall times of 750ps (400mbps) Typical propagation delay times of 1.7ns Operates from a single 3.3V supply Power dissipation 25mW typical per driver at 200MHz Driver at high impedance when disabled or with VCC = 0V Pin compatible with the AM26LS31, SN65LVD31 Low voltage TTL (LVTTL) logic input levels voltage magnitude of 247mV into a 100 load when enabled. The intended application of this device and signalling technique is for point-to-point baseband data transmission over controlled impedance media 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 STLVDS31 is characterized for operation from -55C to 125C. . TSSOP s s s s s s s s Description The STLVDS31 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 5V differential standard levels (such as TIA/EIA-422B) to reduce the power, increase the switching speeds and allows operations with a 3.3V supply rail. Any of the four current mode drivers will deliver a minimum differential output Order code Part number STLVDS31BTR March 2006 Temperature Range -55 to 125 C Package TSSOP16 (Tape & Reel) Rev. 5 Comments 2500 parts per reel 1/15 www.st.com 15 STLVDS31 Contents 1 2 3 4 5 6 7 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2/15 STLVDS31 Pin configuration 1 Figure 1. Pin configuration Pin connections and functional diagram Table 1. Pin description Pin n 1, 7, 9, 15 2, 6, 10, 14 3, 5, 11, 13 4 12 8 16 Symbol 1A to 4A 1Y to 4Y 1Z to 4Z G G GND VCC Driver inputs Driver outputs Driver outputs Enable Enable Ground Supply voltage Name and function 3/15 Pin configuration STLVDS31 Figure 2. Logic diagram and logic symbol Table 2. Truth table for receiver VID = VA - V B VID 100mV -100mV < VID < 100mV VID -100mV OPEN R H ? L H Table 3. Truth table Input A H L H L X OPEN OPEN G H H X X L H X Enables G X X L L H X L Y H L H L Z L L Outputs Z L H L H Z H H L=Low level, H=High Level, X=Don't care, Z= High Impedance 4/15 STLVDS31 Maximum ratings 2 Table 4. Maximum ratings Absolute maximum ratings Parameter Supply Voltage (1) DC Input Voltage Storage Temperature Range Value -0.5 to 4.6 -0.5 to (VCC + 0.5) -65 to +150 Unit V V C Symbol VCC VI Tstg 1. All voltages except differential I/O bus voltage, are with respect to the network ground terminal. Note: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Recommended operating conditions Parameter Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage Operating Temperature Range -40 Min. 3.0 2.0 0.8 85 Typ. 3.3 Max. 3.6 Unit V V V C Table 5. Symbol VCC VIH VILI TA 5/15 Electrical characteristics STLVDS31 3 Table 6. Electrical characteristics Electrical characteristics (Over recommended operating conditions unless otherwise noted. All typical values are at TA = 25C, and VCC = 3.3V). Parameter Differential Output Voltage Change in Differential Output Voltage Between Logic State RL = 100, Fig. 2 Test Min. 247 -50 Typ. 350 Max. 454 50 Unit mV mV Symbol VOD VOD Change in Steady-state VOC(SS) Common Mode Output Voltage Between Logic State VOC(SS) VOC(PP) Steady-state Common Mode Output Voltage Peak to Peak Common mode Output Voltage Fig. 3 1.125 1.2 1.375 V Fig. 3 -50 80 50 150 20 35 1 20 10 -24 12 1 20 1 3 mV mV mA mA mA A A mA mA A A A pF VIN = 0.8V or 2V, Enabled, No Load ICC Supply Current VIN = 0.8V or 2V, Enabled, RL = 100 VIN = 0 or VCC, Disabled IIH IIL ISC IOZ ICS IOFF CIN High Level Input Current Low Level Input Current Short Circuit Output Current VIH = 2V VIL = 0.8V VO(Y) or VO(Z) = 0V VOD = 0 High Impedance Output Current VO = 0 or 2.4V Cold Spare Leakage Current Power OFF Output Current Input Capacitance VI = 3.6V, VDD = 0V VCC = 0VO = 2.4V 11.5 25 0.3 4 0.6 6.1 6/15 STLVDS31 Table 7. Electrical characteristics Switching characteristics (Over recommended operating conditions unless otherwise noted. All typical values are at TA = 25C, and VCC = 3.3V). Parameter Test Min. 0.5 1 0.4 0.4 Typ. 1.4 1.7 0.5 0.5 0.3 0 5.4 2.5 Fig. 4 8.1 7.3 Max. 2 2.5 0.6 0.6 0.6 0.3 15 15 15 15 Unit ns ns ns ns ns ns ns ns ns ns Symbol tPLH tPHL tr tf tsk(P) tsk(O) tPZH tPZL tPHZ tPLZ Propagation Delay Time, Low to High Output Propagation Delay Time, High to Low Output Differential Output Signal Rise Time Differential Output Signal Fall Time Pulse Skew (|tTHL = tTLH|) Channel to Channel Output Skew (1) RL = 100, CL = 10pF Fig. 2 Propagation Delay Time, High Impedance to High Level Output Propagation Delay Time, High Impedance to Low Level Output Propagation Delay Time, High Level to High Impedance Output Propagation Delay Time, Low Level to High Impedance Output 1. tsk(O) is the maximum delay time difference between drivers on the same device. RS-232 IN to TTL-CMOS OUT (from 50% to 50%). 7/15 Typical characteristics STLVDS31 4 Figure 3. Typical characteristics Voltage and current definitions Figure 4. Test circuit, timing and voltage definitions for differential output signal Note A: All input pulse are supplied by a generator having the following characteristics: tr or tf 1ns, pulse repetition rate (PRR) = 50Mpps, pulse width = 10 0.2ns. Note B: CL includes instrumentation and fixture capacitance within 6mm of the D.U.T. 8/15 STLVDS31 Typical characteristics Figure 5. Test circuit and definitions for the driver common mode output voltage Note A: All input pulse are supplied by a generator having the following characteristics: tr or tf 1ns, pulse repetition rate (PRR) = 50Mpps, pulse width = 10 0.2ns. Note B: CL includes instrumentation and fixture capacitance within 6mm of the D.U.T Note C: The measurement of VOC(PP) is made on test equipment with a -3dB bandwidth of at least 300MHz. Figure 6. Enable and disable time test circuit and waveform Note A: All input pulse are supplied by a generator having the following characteristics: tr or tf 1ns, pulse repetition rate (PRR) = 0.5Mpps, pulse width = 500 10ms. Note B: CL includes instrumentation and fixture capacitance within 6mm of the D.U.T. 9/15 Typical performance characteristics STLVDS31 5 Typical performance characteristics (Unless otherwise specified TJ = 25C) 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 10/15 STLVDS31 Package mechanical data 6 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 11/15 Package mechanical data STLVDS31 TSSOP16 MECHANICAL DATA mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 0.60 0.05 0.8 0.19 0.09 4.9 6.2 4.3 5 6.4 4.4 0.65 BSC 8 0.75 0 0.018 0.024 1 TYP MAX. 1.2 0.15 1.05 0.30 0.20 5.1 6.6 4.48 0.002 0.031 0.007 0.004 0.193 0.244 0.169 0.197 0.252 0.173 0.0256 BSC 8 0.030 0.004 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.0079 0.201 0.260 0.176 inch A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0080338D 12/15 STLVDS31 Package mechanical data Tape & Reel TSSOP16 MECHANICAL DATA mm. DIM. MIN. A C D N T Ao Bo Ko Po P 6.7 5.3 1.6 3.9 7.9 12.8 20.2 60 22.4 6.9 5.5 1.8 4.1 8.1 0.264 0.209 0.063 0.153 0.311 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.272 0.217 0.071 0.161 0.319 MIN. TYP. MAX. 12.992 0.519 inch 13/15 Revision history STLVDS31 7 Table 8. Date Revision history Revision history Revision 5 Changes Order codes has been updated and new template. 28-Mar-2006 14/15 STLVDS31 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 herein 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 assumes 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. If 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 whatsoever 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 AN AUTHORIZE REPRESENTATIVE OF ST, ST PRODUCTS ARE NOT DESIGNED, 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. 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 whatsoever, 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. (c) 2006 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 15/15 |
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