8 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI’s customers are responsible for

determining suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

8.1 Application Information

The TDP142-Q1 is a linear redriver designed specifically to compensate the inter-symbol interference (ISI) jitter

caused by signal attenuation through a passive medium like PCB traces and cable. The device can be used in

source, sink, and cable applications, where the device is transparent to the link training. For illustrating purposes,

this section shows the implementations of source application and sink application. Figure 8-1 and Figure 8-2

are the high level block diagram for DisplayPort source side application and DisplayPort sink side application

respectively, where the TDP142-Q1 is snooping both channels of AUX signal and HPD signal.

GPU

DP

Receptacle

TDP142

Power

Source

PCB trace of Length A

PCB trace of Length B

ML0_IN

ML1_IN

ML2_IN

ML3_IN

ML0_OUT

ML1_OUT

ML2_OUT

ML3_OUT

AUX

HPD

3.3 V

3.3 V

Copyright © 2017, Texas Instruments Incorporated

Figure 8-1. Source Application for TDP142-Q1

DP

Receptacle

Scaler

TDP142

Power

Source

PCB trace of Length C

PCB trace of Length D

ML0_IN

ML1_IN

ML2_IN

ML3_IN

ML0_OUT

ML1_OUT

ML2_OUT

ML3_OUT

AUX

HPD

3.3 V

3.3 V

Copyright © 2017, Texas Instruments Incorporated

Figure 8-2. Sink Application for TDP142-Q1

TDP142-Q1

SLLSG10 – NOVEMBER 2024

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Product Folder Links: TDP142-Q1