SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 HIGH-SPEED DIFFERENTIAL LINE RECEIVERS The intended application of these devices and signaling technique is both point-to-point and multidrop (one driver and multiple receivers) data transmission over controlled impedance media of approximately 100 Ω. The transmission media may be printed-circuit board traces, backplanes, or cables. The ultimate rate and distance ofdata transfer depends on the attenuation characteristics of the media and the noise coupling to the environment. 3 14 4 13 5 12 6 11 7 10 8 9 VCC 4B 4A 4Y G 3Y 3A 3B 2 1 20 19 4B 3 VCC SN55LVDS32FK (TOP VIEW) 1Y 4 18 4A G 5 17 4Y NC 6 16 NC 2Y 7 15 G 2A 8 14 3Y 9 10 11 12 13 3A The SN55LVDS32, SN65LVDS32, SN65LVDS3486, and SN65LVDS9637 are differential line receivers that implement 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 EIA/TIA-422B) to reduce the power, increase the switching speeds, and allow operation with a 3.3-V supply rail. Any of the four differential receivers provides a valid logical output state with a ±100-mV differential input voltage within the input common-mode voltage range. The input common-mode voltage range allows 1 V of ground potential difference between two LVDS nodes. 15 3B DESCRIPTION 16 2 1B • • 1 NC • • • 1B 1A 1Y G 2Y 2A 2B GND NC • • • SN55LVDS32 . . . J OR W SN65LVDS32 . . . D OR PW (Marked as LVDS32 or 65LVDS32) (TOP VIEW) GND • • Meet or Exceed the Requirements of ANSI TIA/EIA-644 Standard Operate With a Single 3.3-V Supply Designed for Signaling Rates of up to 100 Mbps (See Table 1) Differential Input Thresholds ±100 mV Max Typical Propagation Delay Time of 2.1 ns Power Dissipation 60 mW Typical Per Receiver at Maximum Data Rate Bus-Terminal ESD Protection Exceeds 8 kV Low-Voltage TTL (LVTTL) Logic Output Levels Pin Compatible With AM26LS32, MC3486, and μA9637 Open-Circuit Fail-Safe Cold Sparing for Space and High Reliability Applications Requiring Redundancy 1A • 2B FEATURES SN65LVDS3486D (Marked as LVDS3486) (TOP VIEW) 1B 1A 1Y 1,2EN 2Y 2A 2B GND 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC 4B 4A 4Y 3,4EN 3Y 3A 3B SN65LVDS9637D (Marked as DK637 or LVDS37) SN65LVDS9637DGN (Marked as L37) SN65LVDS9637DGK (Marked as AXF) (TOP VIEW) VCC 1Y 2Y GND 1 8 2 7 3 6 4 5 1A 1B 2A 2B Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerPAD is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1997–2007, Texas Instruments Incorporated SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. DESCRIPTION (CONTINUED) The SN65LVDS32, SN65LVDS3486, and SN65LVDS9637 are characterized for operation from –40°C to 85°C. The SN55LVDS32 is characterized for operation from –55°C to 125°C. Table 1. Maximum Recommended Operating Speeds Part Number All Rx Active SN65LVDS32 100 Mbps SN65LVDS3486 100 Mbps SN65LVDS9637 150 Mbps AVAILABLE OPTIONS PACKAGE (1) TA –40°C to 85°C –55°C to 125°C (1) SMALL OUTLINE (D) (PW) SN65LVDS32D SN65LVDS32PW MSOP CHIP CARRIER (FK) CERAMIC DIP (J) FLAT PACK (W) — — — — SN65LVDS3486D — — — — SN65LVDS9637D SN65LVDS9637DGN — — — — SN65LVDS9637DGK — — — — SNJ55LVDS32FK SNJ55LVDS32J SNJ55LVDS32W SN55LVDS32W — — For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. ’LVDS32 logic diagram (positive logic) G G 1A 1B 4 1A 12 2 SN65LVDS3486D logic diagram (positive logic) 1B 1,2EN 3 1Y 1 2 3 1Y 1 2A 4 6 2Y 2Y 2B 3A 3B 4A 4B 10 3A 11 9 3Y 3B 10 11 9 3Y 12 3,4EN 14 15 13 4Y 4A 4B 2 5 5 14 15 13 4Y Submit Documentation Feedback 2B 2 1Y 7 6 2B 5 8 2A 2A 7 1A 1B 7 6 SN65LVDS9637D logic diagram (positive logic) 3 2Y SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 FUNCTION TABLES SN55LVDS32, SN65LVDS32 (1) (1) SN65LVDS3486 (1) ENABLES DIFFERENTIAL INPUT A, B G G OUTPUT Y DIFFERENTIAL INPUT A, B ENABLE EN OUTPUT Y VID ≥ 100 mV H X X L H H VID ≥ 100 mV H H –100 mV < VID < 100 mV H X X L ? ? –100 mV < VID < 100 mV H ? VID ≤ –100 mV H X X L L L VID ≤ –100 mV H L X L H Z X L Z Open H X X L H H Open H H H = high level, L = low level, X = irrelevant, Z = high impedance (off), ? = indeterminate logic symbols† SN55LVDS32, SN65LVDS32 G G 4 12 SN65LVDS3486 ≥1 1, 2EN EN 1A 1B 1A 1B 2A 2B 3A 3B 4A 4B † 2A 2 3 2B 1Y 1 5 6 2Y 7 10 11 3, 4EN 3A 3Y 9 3B 4A 14 13 15 4Y 4B 4 EN 2 3 1 6 5 7 12 1Y 2Y EN 10 11 9 14 13 15 3Y 4Y This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Function Table SN65LVDS9637 DIFFERENTIAL INPUT A, B OUTPUT Y VID ≥ 100 mV H –100 mV < VID < 100 mV ? VID ≤ –100 mV L Open H H = high level, L = low level, ? = indeterminate Submit Documentation Feedback 3 SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 logic symbol† SN65LVDS9637 1A 1B 2A 2B † 8 2 7 6 3 5 1Y 2Y This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. EQUIVALENT INPUT AND OUTPUT SCHEMATIC DIAGRAMS EQUIVALENT OF EACH A OR B INPUT EQUIVALENT OF G, G, 1,2EN OR 3,4EN INPUTS VCC VCC 300 kΩ TYPICAL OF ALL OUTPUTS VCC 300 kΩ 50 Ω Input 5Ω Y Output A Input B Input 7V 7V 7V 7V ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) UNIT VCC Supply voltage range (2) VI Input voltage range –0.5 V to 4 V Enables and output –0.5 V to VCC + 0.5 V A or B –0.5 V to 4 V Continuous total power dissipation See Dissipation Rating Table Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds Tstg (1) (2) 4 Storage temperature range 260°C –65°C to 150°C Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages, except differential I/O bus voltages, are with respect to the network ground terminal. Submit Documentation Feedback SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 DISSIPATION RATING TABLE PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR (1) ABOVE TA = 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING TA = 125°C POWER RATING (1) (2) D (8) 725 mW 5.8 mW/°C 464 mW 377 mW — D (16) 950 mW 7.6 mW/°C 608 mW 494 mW — — DGK 425 mW 3.4 mW/°C 272 mW 221 mW DGN (2) 2.14 W 17.1 mW/°C 1.37 W 1.11 W — FK 1375 mW 11.0 mW/°C 880 mW 715 mW 275 mW 275 mW J 1375 mW 11.0 mW/°C 880 mW 715 mW PW (16) 774 mW 6.2 mW/°C 496 mW 402 mW — W 1000 mW 8.0 mW/°C 640 mW 520 mW 200 mW This is the inverse of the junction-to-ambient thermal resistance when board mounted and with no air flow. The PowerPAD™ must be soldered to a thermal land on the printed-circuit board. See the application note PowerPAD Thermally Enhanced Package (SLMA002) RECOMMENDED OPERATING CONDITIONS MIN NOM VCC Supply voltage VIH High-level input voltage G, G, 1,2EN, or 3,4EN 3 VIL Low-level input voltage G, G, 1,2EN, or 3,4EN |VID| Magnitude of differential input voltage VIC Common-mode input voltage (see Figure 1) MAX 3.3 3.6 2 V V 0.1 | ID 2 UNIT |V 0.8 V 0.6 V |V 2.4 * | ID 2 V VCC – 0.8 Operating free-air temperature SN65 prefix –40 85 SN55 prefix –55 125 °C COMMON-MODE INPUT VOLTAGE RANGE vs DIFFERENTIAL INPUT VOLTAGE 2.5 VIC - Common-Mode Input Voltage Range - V TA ÁÁ ÁÁ ÁÁ ÁÁ 2 Max at VCC > 3.15 V Max at VCC = 3 V 1.5 1 0.5 Min 0 0 0.1 0.2 0.3 0.4 0.5 VID - Differential Input Voltage - V 0.6 Figure 1. VIC Versus VID and VCC Submit Documentation Feedback 5 SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 SN55LVDS32 ELECTRICAL CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN VITH+ Positive-going differential input voltage threshold See Figure 2, Table 2, and (2) VITH– Negative-going differential input voltage threshold (3) See Figure 2, Table 2, and (2) VOH High-level output voltage IOH = –8 mA VOL Low-level output voltage IOL = 8 mA –100 UNIT mV mV V 0.4 No load ICC Supply current II Input current (A or B inputs) II(OFF Power-off input current (A or B inputs) VCC = 0, IIH High-level input current (EN, G, or G inputs) IIL Low-level input current (EN, G, or G inputs) IOZ High-impedance output current VO = 0 or VCC (1) (2) (3) 100 2.4 Enabled, 10 18 0.25 0.5 –2 –10 –20 –1.2 –3 Disabled VI = 0 VI = 2.4 V ) TYP (1) MAX V mA μA 20 μA VIH = 2 V 10 μA VIL = 0.8 V 10 μA ±12 μA VI = 2.4 V 6 All typical values are at TA = 25°C and with VCC = 3.3 V. |VITH| = 200 mV for operation at –55°C The algebraic convention, in which the less-positive (more-negative) limit is designated minimum, is used in this data sheet for the negative-going differential input voltage threshold only. SN55LVDS32 SWITCHING CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER MIN TYP MAX UNIT Propagation delay time, low-to-high-level output 1.3 2.3 6 ns tPHL Propagation delay time, high-to-low-level output 1.4 2.2 6.1 ns tsk(o) Channel-to-channel output skew (1) tr tf 0.1 ns Output signal rise time, 20% to 80% 0.6 ns Output signal fall time, 80% to 20% 0.7 tPHZ Propagation delay time, high-level-to-high-impedance output 6.5 12 ns tPLZ Propagation delay time, low-level-to-high-impedance output 5.5 12 ns tPZH Propagation delay time, high-impedance-to-high-level output 8 14 ns tPZL Propagation delay time, high-impedance-to-low-level output 3 12 ns (1) 6 TEST CONDITIONS tPLH CL = 10 pF, See Figure 3 See Figure 4 tsk(o) is the maximum delay time difference between drivers on the same device. Submit Documentation Feedback ns SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 SN65LVDSxxxx ELECTRICAL CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS SN65LVDS32 SN65LVDS3486 SN65LVDS9637 MIN VIT+ Positive-going differential input voltage threshold See Figure 2 and Table 2 VIT- Negative-going differential input voltage threshold (2) See Figure 2 and Table 2 VOH High-level output voltage VOL Low-level output voltage ICC SN65LVDS9637 MAX 100 IOH = –8 mA 2.4 IOH = –4 mA 2.8 mV V 10 18 Disabled 0.25 0.5 No load 5.5 10 –2 –10 –20 –1.2 –3 VI = 0 Input current (A or B inputs) II(OFF) Power-off input current (A or B inputs) VCC = 0, VI = 3.6 V IIH High-level input current (EN, G, or G inputs) VIH = 2 V IIL Low-level input current (EN, G, or G inputs) VIL = 0.8 V IOZ High-impedance output current VO = 0 or VCC VI = 2.4 V mV 0.4 Enabled, No load II (1) (2) UNIT –100 IOL = 8 mA SN65LVDS32, SN65LVDS3486 Supply current TYP (1) 6 V mA μA 20 μA 10 μA 10 μA ±10 μA All typical values are at TA = 25°C and with VCC = 3.3 V. The algebraic convention, in which the less-positive (more-negative) limit is designated minimum, is used in this data sheet for the negative-going differential input voltage threshold only. SN65LVDSxxxx SWITCHING CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS SN65LVDS32 SN65LVDS3486 SN65LVDS9637 UNIT MIN TYP MAX tPLH Propagation delay time, low-to-high-level output 1.5 2.1 3 ns tPHL Propagation delay time, high-to-low-level output 1.5 2.1 3 ns tsk(p) Pulse skew (|tPHL - tPLH|) 0 0.4 ns tsk(o) Channel-to-channel output skew (1) 0.1 0.3 ns 1 ns CL = 10 pF, See Figure 3 (2) tsk(pp) Part-to-part skew tr Output signal rise time, 20% to 80% 0.6 ns tf Output signal fall time, 80% to 20% 0.7 ns tPHZ Propagation delay time, high-level-to-high-impedance output 6.5 12 ns tPLZ Propagation delay time, low-level-to-high-impedance output 5.5 12 ns tPZH Propagation delay time, high-impedance-to-high-level output 8 12 ns tPZL Propagation delay time, high-impedance-to-low-level output 3 12 ns (1) (2) See Figure 4 tsk(o) is the skew between specified outputs of a single device with all driving inputs connected together and the outputs switching in the same direction while driving identical specified loads. tsk(pp) is the magnitude of the difference in propagation delay times between any specified terminals of two devices when both devices operate with the same supply voltages, same temperature, and have identical packages and test circuits. Submit Documentation Feedback 7 SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 PARAMETER MEASUREMENT INFORMATION A Y VID B (VIA + VIB)/2 VIA VIC VO VIB Figure 2. Voltage Definitions Table 2. Receiver Minimum and Maximum Input Threshold Test Voltages Applied Voltages 8 Resulting Differential Input Voltage Resulting Common-Mode Input Voltage VIA(V) VIB(V) VID(mV) VIC(V) 1.25 1.15 100 1.2 1.15 1.25 –100 1.2 2.4 2.3 100 2.35 2.3 2.4 –100 2.35 0.1 0 100 0.05 0 0.1 –100 0.05 1.5 0.9 600 1.2 0.9 1.5 –600 1.2 2.4 1.8 600 2.1 1.8 2.4 –600 2.1 0.6 0 600 0.3 0 0.6 –600 0.3 Submit Documentation Feedback SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 VID VIA CL = 10 pF VIB VO VIA 1.4 V VIB 1V VID 0.4 V 0 -0.4 V tPHL tPLH 80% VO 20% VOH 80% 1.4 V VOL 20% tf tr A. All input pulses are supplied by a generator having the following characteristics: tr or tf≤ 1 ns, pulse repetition rate(PRR) = 50 Mpps, pulse width = 10 ± 0.2 ns. B. CL includes instrumentation and fixture capacitance within 6 mm of the D.U.T. Figure 3. Timing Test Circuit and Waveforms Submit Documentation Feedback 9 SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 B 1.2 V 500 Ω A Inputs (see Note A) G 10 pF (see Note B) ± VO VTEST G 1,2EN or 3,4EN VTEST 2.5 V A 1V 2V 1.4 V 0.8 V G, 1,2EN, or 3,4EN 2V 1.4 V 0.8 V G tPLZ tPZL tPLZ tPZL Y VTEST 0 1.4 V A 2V 1.4 V 0.8 V 2V 1.4 V 0.8 V G, 1,2EN, or 3,4EN G tPHZ tPZH 2.5 V 1.4 V VOL + 0.5 V VOL tPHZ tPZH Y VOH VOH - 0.5 V 1.4 V 0 A. All input pulses are supplied by a generator having the following characteristics: tr or tf≤ 1 ns, pulse repetition rate(PRR) = 0.5 Mpps, pulse width = 500 ± 10 ns. B. CL includes instrumentation and fixture capacitance within 6 mm of the D.U.T. Figure 4. Enable- and Disable-Time Test Circuit and Waveforms 10 Submit Documentation Feedback SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 TYPICAL CHARACTERISTICS SN55LVDS32, SN65LVDS32 SUPPLY CURRENT vs FREQUENCY LOW-TO-HIGH PROPAGATION DELAY TIME vs FREE-AIR TEMPERATURE Four Receivers, Loaded Per Figure 3, Switching Simultaneously VCC = 3.6 V VCC = 3.3 V 65 VCC = 3 V 55 45 35 25 15 50 100 150 200 2.7 2.5 VCC = 3 V VCC = 3.3 V 2.3 VCC = 3.6 V 2.1 1.9 1.7 1.5 −50 f − Frequency − MHz 0 50 TA − Free-Air Temperature − °C Figure 5. 100 Figure 6. HIGH-TO-LOW PROPAGATION DELAY TIME vs FREE-AIR TEMPERATURE t PHL(D) − High-to-Low Propagation Delay Time − ns I CC − Supply Current − mA (rms) 75 t PLH(D) − Low-to-High Propagation Delay Time − ns 85 2.7 2.5 2.3 VCC = 3 V 2.1 VCC = 3.3 V 1.9 VCC = 3.6 V 1.7 1.5 −50 0 50 TA − Free-Air Temperature − °C 100 Figure 7. Submit Documentation Feedback 11 SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 TYPICAL CHARACTERISTICS (continued) HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT HIGH-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 3.5 5.0 2.5 2.0 1.5 1.0 0.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 −60 12 VOL − Low-Level Output Voltage − V VOH − High-Level Output Voltage − V 4.5 3.0 0.0 −50 −40 −30 −20 −10 0 0 10 20 30 40 50 60 IOH − High-Level Output Current − mA IOL − Low-Level Output Current − mA Figure 8. Figure 9. Submit Documentation Feedback 70 80 SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 APPLICATION INFORMATION Equipment • • • Hewlett Packard HP6624A DC power supply Tektronix TDS7404 Real Time Scope Agilent ParBERT E4832A Hewlett Packard HP6624A DC Power Supply Agilent ParBERT (E4832A) Bench Test Board Tektronix TDS7404 Real Time Scope Figure 10. Equipment Setup All Rx running at 100 Mbps; Channel 1: 1Y, Channel 2: 2Y; Channel 3: 3Y; Channel 4: 4Y Figure 11. Typical Eye Patterns SN65LVDS32: (T = 25°C; VCC = 3.6 V; PRBS = 223-1) Submit Documentation Feedback 13 SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 APPLICATION INFORMATION (continued) All Rx running at 100 Mbps; Channel 1: 1Y, Channel 2: 2Y; Channel 3: 3Y; Channel 4: 4Y Figure 12. Typical Eye Patterns SN65LVDS3486: (T = 25°C; VCC = 3.6 V; PRBS = 223-1) All Rx running at 150 Mbps; Channel 1: 1Y, Channel 2: 2Y Figure 13. Typical Eye Patterns SN65LVDS9637: (T = 25°C; VCC = 3.6 V; PRBS = 223-1) 14 Submit Documentation Feedback SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 APPLICATION INFORMATION (continued) USING AN LVDS RECEIVER WITH RS-422 DATA Receipt of data from a TIA/EIA-422 line driver can be accomplished using a TIA/EIA-644 line receiver with the addition of an attenuator circuit. This technique gives the user a high-speed and low-power 422 receiver. If the ground noise between the transmitter and receiver is not a concern (less than ±1 V), the answer can be as simple as shown in Figure 14. A resistor divider circuit in front of the LVDS receiver attenuates the 422 differential signal to LVDS levels. The resistors present a total differential load of 100 Ω to match the characteristic impedance of the transmission line and to reduce the signal 10:1. The maximum 422 differential output signal, or 6 V, is reduced to 600 mV. The high input impedance of the LVDS receiver prevents input bias offsets and maintains a greater than 200-mV differential input voltage threshold at the inputs to the divider. This circuit is used in front of each LVDS channel that also receives 422 signals. R1 45.3 Ω ’LVDS32 R3 5.11 Ω A R4 5.11 Ω B Y R2 45.3 Ω NOTE: The components used were standard values. (1) R1, R2 = NRC12F45R3TR, NIC components, 45.3 Ω, 1/8 W, 1%, 1206 package (2) R3, R4 = NRC12F5R11TR, NIC components, 5.11 Ω, 1/8 W, 1%, 1206 package (3) The resistor values do not need to be 1% tolerance. However, it can be difficult locating a supplier of resistors having values less than 100 Ω in stock and readily available. The user may find other suppliers with comparable parts having tolerances of 5% or even 10%. These parts are adequate for use in this circuit. Figure 14. RS-422 Data Input to an LVDS Receiver Under Low Ground-Noise Conditions If ground noise between the RS-422 driver and LVDS receiver is a concern, the common-mode voltage must be attenuated. The circuit must then be modified to connect the node between R3 and R4 to the LVDS receiver ground. This modification to the circuit increases the common-mode voltage from ±1 V to greater than ±4.5 V. The devices are generally used as building blocks for high-speed point-to-point data transmission where ground differences are less than 1 V. Devices can interoperate with RS-422, PECL, and IEEE-P1596. Drivers/receivers approach ECL speeds without the power and dual-supply requirements. Submit Documentation Feedback 15 SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 APPLICATION INFORMATION (continued) TRANSMISSION DISTANCE vs SIGNALING RATE Transmission Distance − m 100 30% Jitter (see Note A) 10 5% Jitter (see Note A) 1 24 AWG UTP 96 Ω (PVC Dielectric) 0.1 10 100 1000 Signaling Rate − Mbps A. This parameter is the percentage of distortion of the unit interval (UI) with a pseudorandom data pattern. Figure 15. Typical Transmission Distance Versus Signaling Rate 1 1B VCC 16 0.1 µF (see Note A) 100 Ω 2 3 VCC 4 5 6 1A 4B 4A G 4Y 2Y G 2A 3Y 2B 3A GND 3B 0.001 µF (see Note A) 15 1Y 100 Ω 7 3.3 V 14 100 Ω (see Note B) 13 12 11 See Note C 10 100 Ω 8 9 A. Place a 0.1-μF and a 0.001-μF Z5U ceramic, mica, or polystyrene dielectric, 0805 size, chip capacitor between VCC and the ground plane. The capacitors should be located as close as possible to the device terminals. B. The termination resistance value should match the nominal characteristic impedance of the transmission media with ±10%. C. Unused enable inputs should be tied to VCC or GND as appropriate. Figure 16. Typical Application Circuit Schematic 16 Submit Documentation Feedback SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 APPLICATION INFORMATION 1/4 ’LVDS31 Strb/Data_TX TpBias on Twisted-Pair A Strb/Data_Enable TP 55 Ω ’LVDS32 5 kΩ Data/Strobe 55 Ω 3.3 V TP 20 kΩ 500 Ω VG on Twisted-Pair B 1 Arb_RX 500 Ω 20 kΩ 3.3 V 500 Ω 20 kΩ 2 Arb_RX 500 Ω 20 kΩ 3.3 V 7 kΩ Twisted-Pair B Only 7 kΩ 10 kΩ Port_Status 3.3 kΩ A. Resistors are leadless, thick film (0603), 5% tolerance. B. Decoupling capacitance is not shown but recommended. C. VCC is 3 V to 3.6 V. D. The differential output voltage of the 'LVDS31 can exceed that allowed by IEEE1394. Figure 17. 100-Mbps IEEE 1394 Transceiver FAIL-SAFE One of the most common problems with differential signaling applications is how the system responds when no differential voltage is present on the signal pair. The LVDS receiver is like most differential line receivers in that its output logic state can be indeterminate when the differential input voltage is between –100 mV and100 mV if it is within its recommended input common-mode voltage range. However, TI LVDS receivers handle the open-input circuit situation differently. Submit Documentation Feedback 17 SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 APPLICATION INFORMATION (continued) Open-input circuit means that there is little or no input current to the receiver from the data line itself. This could be when the driver is in a high-impedance state or the cable is disconnected. When this occurs, the LVDS receiver pulls each line of the signal pair to near VCC through 300-kΩ resistors (see Figure 18). The fail-safe feature uses an AND gate with input voltage thresholds at about 2.3 V to detect this condition and force the output to a high level, regardless of the differential input voltage. VCC 300 kΩ 300 kΩ A Rt Y B VIT ≈ 2.3 V Figure 18. Open-Circuit Fail-Safe of LVDS Receiver It is only under these conditions that the output of the receiver is valid with less than a 100-mV differential input voltage magnitude. The presence of the termination resistor, Rt, does not affect the fail-safe function as long as it is connected as shown in Figure 18. Other termination circuits may allow a dc current to ground that could defeat the pullup currents from the receiver and the fail-safe feature. 0.01 µF 1 VCC 16 0.1 µF (see Note A) 1B 100 Ω 2 3 VCC 4 5 6 1A 4B 2Y 4Y G 2A 100 Ω 7 4A 2B 3Y 3A 5V 1N645 (two places) 15 1Y G ≈3.6 V 14 100 Ω (see Note B) 13 12 11 See Note C 10 100 Ω 8 GND 3B 9 A. Place a 0.1-μF Z5U ceramic, mica, or polystyrene dielectric, 0805 size, chip capacitor between VCC and the ground plane. The capacitor should be located as close as possible to the device terminals. B. The termination resistance value should match the nominal characteristic impedance of the transmission media with ±10%. C. Unused enable inputs should be tied to VCC or GND, as appropriate. Figure 19. Operation With 5-V Supply 18 Submit Documentation Feedback SN55LVDS32, SN65LVDS32 SN65LVDS3486, SN65LVDS9637 www.ti.com SLLS262Q – JULY 1997 – REVISED JULY 2007 APPLICATION INFORMATION (continued) COLD SPARING Systems using cold sparing have a redundant device electrically connected without power supplied. To support this configuration, the spare must present a high-input impedance to the system so that it does not draw appreciable power. In cold sparing, voltage may be applied to an I/O before and during power up of a device. When the device is powered off, VCC must be clamped to ground and the I/O voltages applied must be within the specified recommended operating conditions. RELATED INFORMATION IBIS modeling is available for this device. Contact the local TI sales office or the TI Web site at www.ti.com for more information. For more application guidelines, see the following documents: • Low-Voltage Differential Signaling Design Notes (SLLA014) • Interface Circuits for TIA/EIA-644 (LVDS) (SLLA038) • Reducing EMI With LVDS (SLLA030) • Slew Rate Control of LVDS Circuits (SLLA034) • Using an LVDS Receiver With TIA/EIA-422 Data (SLLA031) • Low Voltage Differential Signaling (LVDS) EVM (SLLA033) Submit Documentation Feedback 19 PACKAGE OPTION ADDENDUM www.ti.com 17-Apr-2008 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty Lead/Ball Finish MSL Peak Temp (3) 5962-9762201Q2A ACTIVE LCCC FK 20 1 TBD 5962-9762201QEA ACTIVE CDIP J 16 1 TBD A42 SNPB N / A for Pkg Type 5962-9762201QFA ACTIVE CFP W 16 1 TBD A42 SNPB N / A for Pkg Type 5962-9762201VFA ACTIVE CFP W 16 1 TBD A42 SNPB N / A for Pkg Type 5962-9762202Q2A ACTIVE LCCC FK 20 1 TBD SN55LVDS32W ACTIVE CFP W 16 1 TBD A42 SNPB SN65LVDS32D ACTIVE SOIC D 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS32DG4 ACTIVE SOIC D 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS32DR ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS32DRG4 ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS32NSR ACTIVE SO NS 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS32NSRG4 ACTIVE SO NS 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS32PW ACTIVE TSSOP PW 16 90 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS32PWG4 ACTIVE TSSOP PW 16 90 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS32PWR ACTIVE TSSOP PW 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS32PWRG4 ACTIVE TSSOP PW 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS3486D ACTIVE SOIC D 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS3486DG4 ACTIVE SOIC D 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS3486DR ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS3486DRG4 ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS9637D ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) Call TI Level-1-260C-UNLIM SN65LVDS9637DG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) Call TI Level-1-260C-UNLIM SN65LVDS9637DGK ACTIVE MSOP DGK 8 80 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS9637DGKG4 ACTIVE MSOP DGK 8 80 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS9637DGKR ACTIVE MSOP DGK 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS9637DGKRG4 ACTIVE MSOP DGK 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65LVDS9637DGN ACTIVE MSOPPower PAD DGN 8 CU NIPDAU Level-1-260C-UNLIM 80 Addendum-Page 1 Green (RoHS & no Sb/Br) POST-PLATE N / A for Pkg Type POST-PLATE N / A for Pkg Type N / A for Pkg Type PACKAGE OPTION ADDENDUM www.ti.com 17-Apr-2008 Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty SN65LVDS9637DGNG4 ACTIVE MSOPPower PAD DGN 8 SN65LVDS9637DGNR ACTIVE MSOPPower PAD DGN SN65LVDS9637DGNRG4 ACTIVE MSOPPower PAD SN65LVDS9637DR ACTIVE SN65LVDS9637DRG4 80 Lead/Ball Finish MSL Peak Temp (3) Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM DGN 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SOIC D 8 2500 Green (RoHS & no Sb/Br) Call TI Level-1-260C-UNLIM ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) Call TI Level-1-260C-UNLIM SNJ55LVDS32FK ACTIVE LCCC FK 20 1 TBD SNJ55LVDS32J ACTIVE CDIP J 16 1 TBD A42 SNPB N / A for Pkg Type SNJ55LVDS32W ACTIVE CFP W 16 1 TBD A42 SNPB N / A for Pkg Type POST-PLATE N / A for Pkg Type (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 16-Apr-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN65LVDS32DR Package Package Pins Type Drawing SOIC SPQ Reel Reel Diameter Width (mm) W1 (mm) D 16 2500 330.0 16.4 A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 6.5 10.3 2.1 8.0 16.0 Q1 SN65LVDS32NSR SO NS 16 2000 330.0 16.4 8.2 10.5 2.5 12.0 16.0 Q1 SN65LVDS32PWR TSSOP PW 16 2000 330.0 12.4 6.67 5.4 1.6 8.0 12.0 Q1 SN65LVDS3486DR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1 SN65LVDS9637DGKR MSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 SN65LVDS9637DGNR MSOPPower PAD DGN 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 SN65LVDS9637DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 SN65LVDS9637DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 16-Apr-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN65LVDS32DR SOIC D 16 2500 333.2 345.9 28.6 SN65LVDS32NSR SO NS 16 2000 346.0 346.0 33.0 SN65LVDS32PWR TSSOP PW 16 2000 346.0 346.0 29.0 SN65LVDS3486DR SOIC D 16 2500 346.0 346.0 33.0 SN65LVDS9637DGKR MSOP DGK 8 2500 358.0 335.0 35.0 SN65LVDS9637DGNR MSOP-PowerPAD DGN 8 2500 358.0 335.0 35.0 SN65LVDS9637DR SOIC D 8 2500 346.0 346.0 29.0 SN65LVDS9637DR SOIC D 8 2500 340.5 338.1 20.6 Pack Materials-Page 2 MECHANICAL DATA MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999 PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 14 PINS SHOWN 0,30 0,19 0,65 14 0,10 M 8 0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 7 0°– 8° A 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 8 14 16 20 24 28 A MAX 3,10 5,10 5,10 6,60 7,90 9,80 A MIN 2,90 4,90 4,90 6,40 7,70 9,60 DIM 4040064/F 01/97 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-153 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MLCC006B – OCTOBER 1996 FK (S-CQCC-N**) LEADLESS CERAMIC CHIP CARRIER 28 TERMINAL SHOWN 18 17 16 15 14 13 NO. OF TERMINALS ** 12 19 11 20 10 A B MIN MAX MIN MAX 20 0.342 (8,69) 0.358 (9,09) 0.307 (7,80) 0.358 (9,09) 28 0.442 (11,23) 0.458 (11,63) 0.406 (10,31) 0.458 (11,63) 21 9 22 8 44 0.640 (16,26) 0.660 (16,76) 0.495 (12,58) 0.560 (14,22) 23 7 52 0.739 (18,78) 0.761 (19,32) 0.495 (12,58) 0.560 (14,22) 24 6 68 0.938 (23,83) 0.962 (24,43) 0.850 (21,6) 0.858 (21,8) 84 1.141 (28,99) 1.165 (29,59) 1.047 (26,6) 1.063 (27,0) B SQ A SQ 25 5 26 27 28 1 2 3 4 0.080 (2,03) 0.064 (1,63) 0.020 (0,51) 0.010 (0,25) 0.020 (0,51) 0.010 (0,25) 0.055 (1,40) 0.045 (1,14) 0.045 (1,14) 0.035 (0,89) 0.045 (1,14) 0.035 (0,89) 0.028 (0,71) 0.022 (0,54) 0.050 (1,27) 4040140 / D 10/96 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. This package can be hermetically sealed with a metal lid. The terminals are gold plated. Falls within JEDEC MS-004 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Amplifiers Data Converters DSP Clocks and Timers Interface Logic Power Mgmt Microcontrollers RFID RF/IF and ZigBee® Solutions amplifier.ti.com dataconverter.ti.com dsp.ti.com www.ti.com/clocks interface.ti.com logic.ti.com power.ti.com microcontroller.ti.com www.ti-rfid.com www.ti.com/lprf Applications Audio Automotive Broadband Digital Control Medical Military Optical Networking Security Telephony Video & Imaging Wireless www.ti.com/audio www.ti.com/automotive www.ti.com/broadband www.ti.com/digitalcontrol www.ti.com/medical www.ti.com/military www.ti.com/opticalnetwork www.ti.com/security www.ti.com/telephony www.ti.com/video www.ti.com/wireless Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2008, Texas Instruments Incorporated