4LVDS, xECL, CML

Design Considerations

Signaling Rate — TI offers repeaters/transla- tors and crosspoint switches with signaling rates up to 4.0 Gbps.

Jitter — Reducing jitter, the deviation of a signal timing event from its ideal position, has become a priority for ensuring reliability in high-speed data buses.

Skew — Excessive skew, the time delta between the actual and expected arrival

time of a clock signal, can limit the maximum bandwidth performance and lead to data sampling errors. Low skew specifications make high-speed interconnect devices excellent for signal buffering.

Power Consumption Low-voltage differential signaling (LVDS) offers a low-power alternative to ECL and PECL devices. Current- mode drivers in LVDS produce a constant current, which allows power consumption to be relatively independent of frequency. The

constant current driver delivers about 3.5 mA to a 100-W load.

Technical Information

LVDS is based on the TIA/EIA-644A standard conceived to provide a general- purpose electrical-layer specification for drivers and receivers connected in a point-to-point or multidrop interface.

LVDS Family of Products

16Channels

10Channels

8Channels Quads

Duals

Singles

 

 

 

 

LVDS117

 

 

 

 

LVDS387

 

LVDS386

 

LVDS116

 

 

 

Up to 400 Mbps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Up to 630 Mbps

 

 

 

 

CDCLVD110

 

 

 

 

 

 

 

 

 

 

 

1 Gbps

 

 

 

 

 

 

 

 

Clock Distribution Devices

LVDS389

LVDS388A

 

LVDS108

 

 

 

 

 

 

 

LVDS109

 

 

 

(See pg. 42 for table)

 

 

 

 

 

 

 

 

 

LVDS047

 

LVDS048A/348

 

LVDS104

 

 

 

 

LVDS31

 

LVDS32/33

 

LVDS105

 

 

 

 

LVDS3487

 

LVDS3486

 

 

LVDS250

LVDS391

 

LVDS390

 

 

 

 

 

 

 

 

 

 

LVDS9638

 

LVDS9637

 

LVDS049

 

 

 

 

LVDS22

 

 

 

 

LVDS34

 

LVDS050

 

 

 

 

LVCP22

 

 

 

 

 

 

LVDS051

 

 

 

 

LVCP23

 

 

 

 

 

 

LVDS1050

 

CML100

 

LVDS122

 

 

 

 

 

 

 

 

LVDS100

 

 

 

 

LVDS1

 

LVDS2

 

LVDS179

 

 

 

 

 

 

 

LVDS101

 

 

 

 

 

 

 

 

LVDS180

 

 

 

 

 

 

 

 

 

 

LVDS16

LVP16

 

 

 

 

 

 

 

 

 

 

LVDS17

LVP17

 

 

 

 

 

 

 

 

 

 

LVDS18

LVP18

 

 

 

 

 

 

 

 

 

 

LVDS19

LVP19

 

 

 

 

 

 

 

 

 

 

LVDS20

LVP20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transmitters

Receivers

 

Transceivers

 

Repeaters/

 

Crosspoint

 

 

 

 

 

 

 

Translators

 

Switches

Resources For a complete list of resources (evaluation modules, data sheets and application notes), visit interface.ti.com

Literature

 

Literature

 

Number

Description

Number

Description

Application Notes

SLLA014A

Low-Voltage Differential Signaling (LVDS) Design Notes (Rev. A)

SLLA030C

Reducing Electromagnetic Interference with LVDS (Rev. C)

SLLA031A

Using an LVDS Receiver with TIA/EIA-422 Data (Rev. A)

SLLA034A

Slew Rate Control of LVDS Circuits (Rev. A)

SLLA038B

Interface Circuits for TIA/EIA-644 (LVDS) (Rev. B)

SLLA053B

Performance of LVDS with Different Cables (Rev. B)

SLLA054A

LVDS Multidrop Connections (Rev. A)

SLLA065

A Comparison of LinBiCMOS and CMOS Process Technologies in LVDS ICs

SLLA082B

Active Fail-Safe in TI's LVDS Receivers (Rev. B)

SLLA100

Increase Current Drive Using LVDS

SLLA101

Interfacing Different Logic with LVDS Receivers

SLLA103

LVPECL and LVDS Power Comparison

SLLA104

Suggestions for LVDS Connections

SLLA105

DSP to DSP Link Using LVDS

SLLA107

Live Insertion with Differential Interface Products

SLLA147

Suitable LVDS Architectures

Application Notes

 

 

SCAA059

AC-Coupling Between Differential LVPECL, LVDS, HSTL, and CML

 

SCAA062

DC-Coupling Between Differential LVPECL, LVDS, HSTL, and CML

 

Part Number

 

Description

Price*

Evaluation Modules (EVMs)

 

SN65LVDS31-32EVM

Evaluation Module for LVDS31 and LVDS32

49.00

SN65LVDS31-32BEVM

Evaluation Module for LVDS31 and LVDS32B

49.00

SN65LVDS31-33EVM

Evaluation Module for LVDS31 and LVDS33

49.00

SN65LVDS386EVM

SN65LVDS386 Evaluation Module

49.00

SN65LVDS387EVM

SN65LVDS387 Evaluation Module

49.00

SN65LVDS100EVM

SN65LVDS100 Evaluation Module

99.00

SN65LVDS20EVM

SN65LVDS20 Evaluation Module

49.00

SN65CML20EVM

SN65CML20 Evaluation Module

49.00

SN65LVCP22-23EVM

SN65LVCP22 Evaluation Module

25.00

SN65LVDS122EVM

SN65LVDS122 Evaluation Module

49.00

SN65LVDS250EVM

SN65LVDS250 Evaluation Module

49.00

Note: IBIS models are available at interface.ti.com *Suggested resale price in U.S. dollars.

Interface Selection Guide

Texas Instruments 4Q 2006

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Texas Instruments 4Q 2006 manual LVDS, xECL, CML, Design Considerations, Technical Information, Lvds Family of Products