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GND

IN1-

IN1+

IN2+

IN2-

OUT2-

OUT2+

OUT1+

OUT1-

OUT1

OUT2

IN2

IN1

DS90LV049

www.ti.com

SNLS159D –NOVEMBER 2002–REVISED APRIL 2013

DS90LV049 3V LVDS Dual Line Driver with Dual Line Receiver

Check for Samples: DS90LV049

FEATURES

DESCRIPTION

The DS90LV049 is a dual CMOS flow-through

• Up to 400 Mbps Switching Rates

differential line driver-receiver pair designed for

• Flow-Through Pinout Simplifies PCB Layout

applications requiring ultra low power dissipation,

• 50 ps Typical Driver Channel-to-Channel Skew

exceptional noise immunity, and high data

throughput. The device is designed to support data

• 50 ps Typical Receiver Channel-to-Channel

rates in excess of 400 Mbps utilizing Low Voltage

Skew

Differential Signaling (LVDS) technology.

• 3.3 V Single Power Supply Design

The DS90LV049 drivers accept LVTTL/LVCMOS

• TRI-STATE Output Control

signals and translate them to LVDS signals. On the

• Internal Fail-Safe Biasing of Receiver Inputs

other hand, the receivers accept LVDS signals and

• Low Power Dissipation (70 mW at 3.3 V Static)

translate them to 3 V CMOS signals. The LVDS input

buffers have internal failsafe biasing that places the

• High Impedance on LVDS Outputs on Power

outputs to a known H (high) state for floating receiver

Down

inputs. In addition, the DS90LV049 supports a TRI-

• Conforms to TIA/EIA-644-A LVDS Standard

STATE function for a low idle power state when the

• Industrial Operating Temperature Range

device is not in use.

(−40°C to +85°C)

The EN and EN inputs are ANDed together and

• Available in Low Profile 16 Pin TSSOP

control the TRI-STATE outputs. The enables are

Package

common to all four gates.

Connection Diagram

Dual-In-Line

Order Number DS90LV049TMT

Order Number DS90LV049TMTX (Tape and Reel)

PW0016A Package

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.

2All trademarks are the property of their respective owners.

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.

Summary of content (19 pages)

PAGE 1
DS90LV049 www.ti.com SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 DS90LV049 3V LVDS Dual Line Driver with Dual Line Receiver Check for Samples: DS90LV049 FEATURES DESCRIPTION • • • • The DS90LV049 is a dual CMOS flow-through differential line driver-receiver pair designed for applications requiring ultra low power dissipation, exceptional noise immunity, and high data throughput.
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DS90LV049 SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 www.ti.com Functional Diagram RIN1RIN1+ RIN2+ RIN2DOUT2DOUT2+ DOUT1+ DOUT1- R1 ROUT1 R2 ROUT2 D2 DIN2 D1 DIN1 EN AND EN Table 1. TRUTH TABLE EN EN LVDS Out LVCMOS Out L or Open L or Open OFF OFF H L or Open ON ON L or Open H OFF OFF H H OFF OFF These devices have limited built-in ESD protection.
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DS90LV049 www.ti.com SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 ABSOLUTE MAXIMUM RATINGS (1) (2) −0.3 V to +4 V Supply Voltage (VDD) −0.3 V to (VDD + 0.3 V) LVCMOS Input Voltage (DIN) LVDS Input Voltage (RIN+, RIN-) −0.3 V to +3.9 V Enable Input Voltage (EN, EN) −0.3 V to (VDD + 0.3 V) LVCMOS Output Voltage (ROUT) −0.3 V to (VDD + 0.3 V) −0.3 V to +3.
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DS90LV049 SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 www.ti.com ELECTRICAL CHARACTERISTICS (continued) Over supply voltage and operating temperature ranges, unless otherwise specified.(1)(2)(3) Symbol Parameter Conditions Pin Min Typ Max Units 250 350 450 mV 1 35 |mV| 1.23 1.375 V 1 25 |mV| −5.8 −9.0 mA −5.8 −9.
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DS90LV049 www.ti.com SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 SWITCHING CHARACTERISTICS VDD = +3.3V ± 10%, TA = −40°C to +85°C (1) Symbol (2) Parameter Conditions Min Typ Max Units LVDS Outputs (Driver Outputs) tPHLD Differential Propagation Delay High to Low 0.7 2 ns tPLHD Differential Propagation Delay Low to High 0.7 2 ns tSKD1 Differential Pulse Skew |tPHLD − tPLHD| (3) (4) 0 0.05 0.4 ns tSKD2 Differential Channel-to-Channel Skew (3) (5) 0 0.05 0.
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DS90LV049 SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 www.ti.com PARAMETER MEASUREMENT INFORMATION Power Supply VDD EN DOUT+ SMU DIN D SMU 100 : SMU DOUT- Figure 1. Driver VOD and VOS Test Circuit Power Supply Oscilloscope Z0 = 50 : C = 15 pF Distributed Signal Generator VDD EN DOUT+ DIN Transmission Line 50 : D Transmission Line DC Block Transmission Line DC Block 100 : DOUT- 50 : Z0 = 50 : C = 15 pF Distributed 50 : Figure 2.
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DS90LV049 www.ti.com SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 PARAMETER MEASUREMENT INFORMATION (continued) Power Supplies 2.4 V Oscilloscope VDD 1 k: DOUT+ 3.3 V DIN 950 : Transmission Line D 100 : 50 : Transmission Line DOUT- 1 k: EN 950 : 2.4 V Z0 = 50 : C = 15 pF Distributed Signal Generator 50 : Z0 = 50 : C = 15 pF Distributed 50 : Transmission Line Figure 4. Driver TRI-STATE Delay Test Circuit Figure 5.
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DS90LV049 SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 www.ti.com PARAMETER MEASUREMENT INFORMATION (continued) Figure 7. Receiver Propagation Delay and Transition Time Waveforms Power Supplies VDD 1 k: Oscilloscope 2.5 V RIN+ ROUT 1.4 V 100 : 950 : R Transmission Line 1.0 V 50 : RIN- Z0 = 50 : C = 15 pF Distributed Signal Generator Z0 = 50 : C = 15 pF Distributed EN 50 : Transmission Line Figure 8.
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DS90LV049 www.ti.com SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 PARAMETER MEASUREMENT INFORMATION (continued) 3V EN 1.5 V 1.5 V 0V 3V 1.5 V 1.5 V 0V EN tPHZ tPZH OUT VOH 0.5 V 50% VDD / 2 tPZL VDD / 2 tPLZ 50% 0.5 V OUT VOL Figure 9. Receiver TRI-STATE Delay Waveforms TYPICAL APPLICATION Figure 10.
PAGE 10
DS90LV049 SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 www.ti.com APPLICATION INFORMATION General application guidelines and hints for LVDS drivers and receivers may be found in the following application notes: LVDS Owner's Manual (lit #550062-002), AN-808 (SNLA028), AN-977 (SNLA166), AN-971 (SNLA165), AN-916 (SNLA219), AN-805 (SNOA233), AN-903 (SNLA034). LVDS drivers and receivers are intended to be primarily used in an uncomplicated point-to-point configuration as is shown in Figure 10.
PAGE 11
DS90LV049 www.ti.com SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 TERMINATION Use a termination resistor which best matches the differential impedance or your transmission line. The resistor should be between 90 Ω and 130 Ω. Remember that the current mode outputs need the termination resistor to generate the differential voltage. LVDS will not work without resistor termination. Typically, connecting a single resistor across the pair at the receiver end will suffice.
PAGE 12
DS90LV049 SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CURVES Differential Output Voltage vs Load Resistor Power Supply Current vs Frequency 90 VDD = 3.3 V TA = 25o C Power Supply Current - IDD [mA] Differential Output Voltage - VOD [V] 0.45 0.40 0.35 0.30 0.25 40 60 80 100 120 140 160 75 60 All Switching 45 Single Receiver Switching 30 Single Driver Switching 15 0 0.1 Resistor Load - RL [:] 12 VDD = 3.3 V TA = 25o C RL = 100 : CL = 15 pF VID = 0.
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DS90LV049 www.ti.com SNLS159D – NOVEMBER 2002 – REVISED APRIL 2013 REVISION HISTORY Changes from Revision C (April 2013) to Revision D • Page Changed layout of National Data Sheet to TI format ..........................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 1-Nov-2013 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.
PAGE 16
PACKAGE MATERIALS INFORMATION www.ti.com 11-Oct-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant DS90LV049TMTX TSSOP PW 16 2500 330.0 12.4 6.95 8.3 1.6 8.0 12.0 Q1 DS90LV049TMTX/NOPB TSSOP PW 16 2500 330.0 12.4 6.95 8.3 1.6 8.0 12.
PAGE 17
PACKAGE MATERIALS INFORMATION www.ti.com 11-Oct-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DS90LV049TMTX TSSOP PW 16 2500 367.0 367.0 35.0 DS90LV049TMTX/NOPB TSSOP PW 16 2500 367.0 367.0 35.
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