PI3DPX1202A datasheet(14/51 Pages) DIODES

Part #	PI3DPX1202A

Description	Low power DisplayPort 1.2 Redriver with DDC/AUX CH Switch

PDF	51 Pages

Scroll/Zoom	100%

Manufacturer	DIODES [Diodes Incorporated]

Direct Link	http://www.diodes.com

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14 / 51 page

PI3DPX1202A

A product Line of

Diodes Incorporated

14 of 51

www.diodes.com

September 2017

PI3DPX1202A

Document number: DS40115 Rev.2-1

Reset Implementation

When ENABLE is Low, the device is power-down mode and output are high impedance. It is critical to transi-

tion the ENABLE after the power supply VDD has reached the minimum recommended operation voltage. This

can be achieved by the control signal GPO or by an external capacitor connected to GND.

To insure properly Reset, the ENABLE pin must be de-asserted for at least 100μS before asserted, and must be

reprogrammed in I2C programming mode. When using external capacitor, the size of the cap value depends

on the power up VDD supply ramp. Larger value results in a slower ramp-up time. Consider 0.1uF capacitor as

a reasonable first estimate.

100k-Ohm

VDD

ENABLE

100k-Ohm

VDD

ENABLE

GPO

External Capacitor Controlled

GPO pin contolled from Controller IC

Figure 4-4: Reset control from External Capacitor or GPO pin

PI3DPX1202A Datasheet(PDF) 14 Page - Diodes Incorporated