What is LVDS? · 2020. 12. 21. · LVDS architecture V OD = V + - V-Cable or PCB trace Stub. TI...

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What is LVDS?TI Precision Labs – LVDS interface

Prepared by Ikechukwu Anyiam

Presented by Nicholaus Malone

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LVDS applications

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Driver Receiver

VSignal VSignal

GND

V+

V-

I+

I-

LVDS architecture

Cable or PCB trace

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Driver Receiver

VSignal VSignal

GND

V+

V-

I+

I- 100Ω

LVDS architecture

VOD = V+ - V-

Cable or PCB trace

Stub

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Driver Receiver

VSignal VSignal

GND

V+

V-

I+

I-

VOD = V+ - V-

VCM = 1.2V

LVDS architecture

Cable or PCB trace

100Ω

Stub

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DP main link signaling characteristic

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Source Sink

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LVDS signal interface

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Push-pull

current mode

driver

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LVDS signal interface

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350 mV

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LVDS electromagnetic interference (EMI) immunity

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V+ - V-

V+

V-

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Power consumption and dissipation

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How far and how fast can LVDS signals travel?

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Determining max data rate and distance

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• Take eye pattern measurements at the load to evaluate jitter tolerance

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Thank you

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