6 Detailed Description

6.1 Overview

The TDP142-Q1 is a DisplayPort linear redriver that supports up to 8.1Gbps for each lane. Additionally, the

transparency of the device to the DP link training makes the TDP142-Q1 a position independent device designed

for source/sink or cable applications.

The TDP142-Q1 helps the system to pass compliance of both transmitter and receiver for DisplayPort version

1.4 HBR3. The redriver recovers incoming data by applying equalization that compensates for channel loss,

and drives out signals with a high differential voltage. Each channel has a receiver equalizer with selectable

gain settings. Set the equalization based on the amount of insertion loss before the TDP142-Q1 receivers. The

equalization control can be controlled by DPEQ[1:0] pins or I2C registers.

The device ultra-low-power architecture operates at a 3.3V power supply and achieves enhanced performance.

Also, the TDP142-Q1 comes in a commercial temperature range and industrial temperature range.

6.2 Functional Block Diagram

INDP0p

INDP0n

INDP3p

INDP3n

I2C_EN

A0

TEST2/SDA

TEST1/SCL

VCC

AUXp

AUXn

OUTDP3n

OUTDP3p

SNOOPENZ/RSVD8

OUTDP2n

OUTDP2p

HPDIN/RSVD9

EQ

EQ

EQ

EQ

Driver

Driver

VREG

Control Logic and Registers

DPEQ_SEL

DPEQ_SEL

INDP1p

INDP1n

INDP2p

INDP2n

DPEN/HPDIN

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DPEQ_SEL

DPEQ_SEL

DPEQ_SEL

OUTDP0p

OUTDP0n

Driver

OUTDP1p

OUTDP1n

Driver

DPEQ0/A1

DPEQ1

I2C

Slave

AUX

Snooping

TDP142-Q1

SLLSG10A – NOVEMBER 2024 – REVISED FEBRUARY 2025

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Product Folder Links: TDP142-Q1