PI3DPX1203

A product Line of

Diodes Incorporated

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www.diodes.com

February 2021

© Diodes Incorporated

PI3DPX1203

Document number DS40598 Rev 2-2

4.2.3 Power-down Mode

Power-down mode can be controlled by the pin-strapping or I2C programming. When Cable Present Detection pin

PRSNT# is set to HIGH, it enters into the power-down mode. Input and Output termination resistors set to 200 kΩ and 2

kΩ pull-up respectively.

PRSNT# Description

Input Termination

Resistor

Output Termination Resistor

H

Power-down mode. PRSNT# is internally pull-up

100 k

Ω.

200 k

Ω pull-up

2 k

Ω pull-up

L

Active Low for normal operation

50

Ω pull-up

50

Ω pull-up

4.2.4 Output -1 dB Compression Setting

Swing Control 2 bits SW[1:0] can control the linearity of the output voltage, when input amplitude changes.

SW1

SW0

mVppd @ 8 Gbps

0

0

700

0

1

800

1

0

900

1

1

1000

4.2.5 Flat Gain Setting

Flat Gain Control 2 bits FG[1:0] are the selection bits for the DC value.

FG1

FG0

Gain

0

0

-4 dB

0

1

-2 dB

1

0

+0 dB

1

1

+2 dB