SN65LVDS049 5,0 mm x 6,4 mm www.ti.com SLLS575 – AUGUST 2003 DUAL LVDS DIFFERENTIAL DRIVERS AND RECEIVERS FEATURES • • • • • • • • • • • • • • DS90LV049 Compatible Up to 400 Mbps Signaling Rates Flow-Through Pin-out 50 ps Driver Channel-to-Channel Skew (Typ) 50 ps Receiver Channel-to-Channel Skew (Typ) 3.3-V Power Supply High-Impedance Disable for all Outputs Internal Failsafe Biasing of Receiver Inputs 1.4 ns Driver Propagation Delay (Typ) 1.9 ns Receiver Propagation Delay (Typ) High Impedance Bus Pins on Power Down ANSI TIA/EIA-644-A Compliant Receiver Input and Driver Output ESD Exceeds 10 kV 16-pin TSSOP Package The intended application of this device and signaling technique is for point-to-point baseband data transmission over controlled impedance media of approximately 100-Ω characteristic impedance. The transmission media may be printed-circuit board traces, backplanes, or cables. (Note: The ultimate rate and distance of data transfer is dependent upon the attenuation characteristics of the media, the noise coupling to the environment, and other application specific characteristics) The SN65LVDS049 is characterized for operation from –40°C to 85°C FUNCTIONAL DIAGRAM RIN1− • R2 ROUT2 RIN2− DOUT2− Full-duplex LVDS Communications of Clock and Data Printers DOUT2+ DOUT1+ DESCRIPTION The SN65LVDS049 is a dual flow-through differential line driver-receiver pair that uses low-voltage differential signaling (LVDS) to achieve signaling rates as high as 400 Mbps. The TIA/EIA-644-A standard compliant electrical interface provides a minimum differential output voltage magnitude of 250 mV into a 100-Ω load and receipt of signals with up to 1 V of ground potential difference between a transmitter and receiver. The LVDS receivers have internal failsafe biasing that places the outputs into a known high state for unconnected differential inputs. ROUT1 RIN2+ APPLICATIONS • R1 RIN1+ D2 DIN2 D1 DIN1 DOUT1− EN EN AND PW PACKAGE (Marked as LVDS049) (TOP VIEW) RIN1 RIN1+ RIN2+ RIN2 DOUT2 DOUT2+ DOUT1+ DOUT1 - 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 EN ROUT1 ROUT2 GND VCC DIN2 DIN1 EN 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. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2003, Texas Instruments Incorporated SN65LVDS049 www.ti.com SLLS575 – AUGUST 2003 DRIVER TRUTH TABLE INPUT OUTPUTS (1) ENABLES DIN EN EN L H L or OPEN H X (1) All other conditions DOUT+ DOUT- L H H L Z Z H = high level, L = low level, X = irrelevant, Z = high impedance (off) RECEIVER TRUTH TABLE DIFFERENTIAL INPUT EN EN ROUT VID ≥ 100 mV H L or OPEN H VID ≤ - 100 mV L Open/short or terminated H X (1) OUTPUT (1) ENABLES RIN- - RIN+ All other conditions Z H = high level, L = low level, X = irrelevant, Z = high impedance (off) ENABLE FUNCTION TABLE ENABLES OUTPUTS EN EN LVDS Out LVCMOS Out L or Open L or Open DISABLED DISABLED H L or Open ENABLED ENABLED L or Open H DISABLED DISABLED H H DISABLED DISABLED POWER DISSIPATION RATING (1) (2) 2 PACKAGE CIRCUIT BOARD MODEL TA≤25°C POWER RATING DERATING FACTOR (1) ABOVE TA = 25°C TA = 85°C POWER RATING PW Low-K (2) 774 mW 6.2 mW/°C 402 mW This is the inverse of the junction-to-ambient thermal resistance when board-mounted and with no air flow. In accordance with the Low-K thermal metric definitions of EIA/JESD51-3. SN65LVDS049 www.ti.com SLLS575 – AUGUST 2003 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) UNIT Supply voltage range (2), VCC -0.3 V to 4 V DIN, ROUT, EN, or EN Voltage range -0.3 V to (VCC + 0.3 V) RIN+ or RIN- -0.3 V to 4 V DOUT+ or DOUTESD Human Body Model (3) Charged-Device Model (4) -0.3 V to 3.9 V RIN+, RIN-, DOUT+, and DOUT- ±10 kV All pins ±2K V ±500 V All pins LVDS output short circuit duration (DOUT+, DOUT-) Continuous Continuous power dissipation See Dissipation Rating Table Storage temperature range -65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds (1) (2) (3) (4) 260°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 voltage values, except differential I/O bus voltages, are with respect to network ground terminal. Tested in accordance with JEDEC Standard 22, Test Method A114-A. Tested in accordance with JEDEC Standard 22, Test Method C101. RECOMMENDED OPERATING CONDITIONS Supply voltage, VCC MIN NOM MAX 3 3.3 3.6 Receiver input voltage GND Common-mode input voltage, VIC V ID 2 Operating free-air temperature, TA -40 UNIT V V V V VCC - 0.8 V 85 °C 2.4 ID 2 3 SN65LVDS049 www.ti.com SLLS575 – AUGUST 2003 DEVICE ELECTRICAL CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) MAX UNIT 2.0 VCC V GND 0.8 V INPUT DC SPECIFICATIONS (DIN, EN, EN) VIH Input high voltage VIL Input low voltage IIH Input high current VIN = VCC -10 3 10 µA IIL Input low current VIN = GND -10 1 10 µA VCL Input clamp voltage ICL = -18 mA -1.5 -0.8 250 350 450 V -35 1 35 mV 1.125 1.2 1.375 -25 1 25 mV V LVDS Output DC Specifications (DOUT+, DOUT-) |VOD| Differential output voltage ∆|VOD| Change in magnitude of VOD for complimentary output states VOS Offset voltage ∆VOS Change in magnitude of VOS for complimentary output states IOS Output short circuit current Enabled DIN = VCC and DOUT+ = 0 V, or DIN = GND and DOUT- = 0 V -4.5 -9 mA IOSD Differential output short circuit current (2) Enabled, VOD = 0 V -3.6 -9 mA IOFF Power-off leakage VCC = 0 V or Open; VO = 0 or 3.6 V -20 0 20 µA IOZ Output high-impedance current EN = 0 V and EN = VCC, VO = 0 or VCC -10 0 10 µA RL = 100 Ω, See Figure 1 V LVDS Input DC Specifications (RIN+, RIN-) VIT+ Differential input high threshold VIT- Differential input low threshold VCMR Common-mode voltage range IIN Input current VCM = 1.2 V, 0.05 V, 2.35 V VID = ± 100 mV 100 -100 mV mV 0.05 2.35 V VCC = 3.6 V, VIN = 0 V or 2.8 V -20 20 µA VCC= 0 V, VIN = 0 V, 2.8 V, or 3.6 V -20 20 µA 2.7 0.05 0.25 V 0 10 µA 17 35 mA 1 25 mA Outputs DC Specifications (ROUT) VOH Output high voltage IOH = -0.4 mA, VID = 200 mV VOL Output Low voltage IOL = 2 mA, VID = -200 mV IOZ Output high-impedance current Disabled, VOUT = 0 V or VCC -10 3.3 V Device DC Specifications ICC Power supply current (LVDS loaded, enabled) EN = 3.3 V, DIN = VCC or Gnd, 100 -Ω differential LVDS loads ICCZ High impedance supply current (disabled) No loads, EN = 0 V (1) (2) 4 All typical values are at 25°C and with a 3.3 V supply. Output short circuit current (IOS) is specified as magnitude only, the minus sign indicates direction only SN65LVDS049 www.ti.com SLLS575 – AUGUST 2003 SWITCHING CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) MAX 1.3 2.0 ns 1.4 2.0 ns UNIT LVDS Outputs (DOUT+, DOUT-) RL = 100 Ω, CL = 15 pF distributed, See Figure 2 tPLHD Differential propagation delay low to high tPHLD Differential propagation delay high to low tsk(p) Differential pulse skew (|tPHL - tPLH|) 0 0.15 0.4 ns tsk(o) 0 0.05 0.5 ns tsk(pp) Differential channel-to-channel skew (2) Differential part-to-part skew (3) 1 ns tr Differential rise time 0.2 0.5 1 ns tf Differential fall time 0.2 0.5 1 ns tPHZ Disable time, high level to high impedance 2.7 4 ns tPLZ Disable time, low level to high impedance 2.7 4 ns tPZH Enable time, high impedance to high level 1 5 8 ns tPZL Enable time, high impedance to low level Maximum operating frequency (4) 1 5 8 fMAX 0 RL = 100 Ω, CL = 15 pF distributed, See Figure 3 250 ns MHz LVCMOS Outputs (ROUT) tPLH Propagation delay low to high tPHL Propagation delay high to low tsk(p) Pulse skew (|tPHL - tPLH|) tsk(o) tsk(pp) Channel-to-channel skew (5) Part-to-part skew (6) tr Rise time tf Fall time tPHZ Disable time, high level to high impedance tPLZ Disable time, low level to high impedance tPZH Enable time, high impedance to high level tPZL Enable time, high impedance to low level Maximum operating frequency (7) fMAX (1) (2) (3) (4) (5) (6) (7) VID= 200 mV, CL = 15 pF distributed, See Figure 4 0.5 1.9 3.5 ns 0.5 1.7 3.5 ns 0 0.2 0.4 ns 0 0.05 0.5 ns 1 ns 0.5 1.4 ns 0.3 0.5 1.4 ns 3 7.2 9 ns 2.5 4 8 ns 2.5 4.2 7 ns 2 3.3 7 200 250 0 0.3 CL = 15 pF distributed, See Figure 5 ns MHz All typical values are at 25°C and with a 3.3 V supply. tsk(o) is the magnitude of the time difference between the tPLH or tPHL of all drivers of a single device with all of their inputs connected together. 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, at the same temperature, and have identical packages and test circuits. f(MAX) generator input conditions: tr = tf < 1 ns (0% to 100%), 50% duty cycle, 0 V to 3 V. Output Criteria: duty cycle = 45% to 55%, VOD > 250 mV, all channels switching. tsk(lim) is the maximum delay time difference between drivers over temperature, VCC, and process. tsk(pp) is the magnitude of the difference in propagation delay times between any specified terminals of two devices when both devices operate wf(MAX) generaith the same supply voltages, at the same temperature, and have identical packages and test circuits f(MAX) generator input conditions: tr = tf < 1 ns (0% to 100%), 50% duty cycle, VID = 200 mV, VCM = 1.2 V. Output criteria: duty cycle = 45% to 55%, VOH > 2.7 V, VOL < 0.25 V, all channels switching. 5 SN65LVDS049 www.ti.com SLLS575 – AUGUST 2003 EQUIVALENT INPUT AND OUTPUT SCHEMATIC DIAGRAMS VCC 300 kΩ VCC 300 kΩ 50 Ω EN,EN,DIN RIN RIN 7V 7V 7V 300 kΩ VCC VCC 50 Ω ROUT 50 Ω 10 kΩ DOut 7V 7V PARAMETER MEASUREMENT INFORMATION DOUT+ VCC DIN RL/2 VOD GND RL/2 VOS Driver Enabled DOUT- Figure 1. Driver VOD and VOS Test Circuit 6 SN65LVDS049 www.ti.com SLLS575 – AUGUST 2003 Oscilloscope * DOUT+ C1 50 Ω * Pulse Generator DIN 50 Ω * C2 DOUT* Matched 50 Cables, C = 15 pF Distributed 50 Ω Blocking Capacitors C1 = C2 = 50 nF 3V DIN 1.5 V 1.5 V 0V tPLHD tPLLD DOUT- 0 V* *Differential VOH 0 V* VOL DOUT+ VOD 80 % 0V 20 % 80 % VOD = DOUT+ - DOUT- t tf tr 0V 20 % Figure 2. Driver Propagation Delay and Rise/Fall Time Test Circuit and Waveforms 2.4 V 1 kΩ 1 kΩ DOUT+ VCC DIN 100 Ω 950 Ω GND EN or EN 950 Ω DOUT- Pulse Generator Oscilloscope * 50 Ω * 50 Ω * 50 Ω * Matched 50 Ω Cables, C = 15 pF Distributed 3V EN When EN = GND or Open 1.5 V 1.5 V 0V 3V EN When EN = VCC 1.5 V 1.5 V 0V tPHZ DOUT+ When DIN = VCC tPZH 50 % VOH 50 % DOUT- When DIN = GND DOUT+ When DIN = GND DOUT- When DIN = VCC 1.2 V 1.2 V 50 % 50 % VOL tPLZ tPZL Figure 3. Driver High-Impedance State Delay Test Circuit and Waveforms 7 SN65LVDS049 www.ti.com SLLS575 – AUGUST 2003 Oscilloscope * RIN+ * Pulse Generator RIN- 50 Ω ROUT 100 Ω * 50 Ω * * 950 Ω 50 Ω * Matched 50 Ω Cables, C = 15 pF Distributed RIN- 1.3 V 0 V Differential RIN+ 1.2 V VID = 200 mV 1.1 V tPLH ROUT tPHL VOH 80 % 80 % 1.5 V 20 % 1.5 V 20 % tr VOL tf Figure 4. Receiver Propagation Delay and Rise/Fall Test Circuit and Waveforms VCC RIN+ 1.4 V ROUT 100 Ω 1V 950 Ω RIN- Pulse Generator Oscilloscope 1 kΩ * 50 Ω EN or EN * * Matched 50 Ω Cables, C = 15 pF Distributed 50 Ω 3V EN When EN = GND or OPEN 1.5 V 1.5 V 0V 3V EN When EN = VCC 1.5 V 1.5 V 0V tPHZ tPHZ VOH ROUT for RIN+ = 1.4 V and RIN- = 1 V 50 % 0.5 V VCC/2 ROUT for RIN+ = 1 V and RIN- = 1.4 V VCC/2 0.5 V 50 % VOL tPLZ tPZL Figure 5. Receiver High-Impedance State Delay Test Circuit and Waveforms (Note, VCC = 3.3 V) 8 SN65LVDS049 www.ti.com SLLS575 – AUGUST 2003 TYPICAL CHARACTERISTICS 600 60 VCC = 3.3 V, TA = 25°C 500 50 ICC - Supply Current - mA |VOD | - Differential Output Voltage - mV Power Supply Current vs. Frequency VOD vs. Load Resistance 400 300 200 100 40 VCC = 3.3 V, TA = 25°C, RL = 100 Ω, CL = 15 pF Distributed, VID = 400 mV p-p, VI = 3 V All Switching 30 Single Receiver 20 Single Driver 10 0 40 60 80 100 120 RL - Load Resistance - Ω Figure 6. 140 160 0 0.1 1 10 100 f - Frequency - MHz 1000 Figure 7. 9 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. 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