PPHDMI2020

Preliminary

TVS

UNISONICTECHNOLOGIESCO.,LTD

2 of 6

www.unisonic.com.tw

QW-R223-025.c

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PIN CONFIGURATION

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PIN DESCRIPTION

PIN NO.

PIN NAME

DESCRIPTION

1

5V_SUPPLY

Current source for 5V_OUT.

2

LV_SUPPLY

Bias for CE / DDC / HOTPLUG level shifters.

3, 38

GND

Supply GND reference.

4, 37

TMDS_D2+

TMDS 0.9pF ESD protection (Note 1).

5, 8, 11, 14, 27, 30, 33,

36

TMDS_GND

TMDS ESD and Parasitic GND return. (Note 3)

6, 35

TMDS_D2-

TMDS 0.9pF ESD protection. (Note 1)

7, 34

TMDS_D1+

TMDS 0.9pF ESD protection. (Note 1)

9, 32

TMDS_D1-

TMDS 0.9pF ESD protection. (Note 1)

10, 31

TMDS_D0+

TMDS 0.9pF ESD protection. (Note 1)

12, 29

TMDS_D0-

TMDS 0.9pF ESD protection. (Note 1)

13, 28

TMDS_CK+

TMDS 0.9pF ESD protection. (Note 1)

15, 26

TMDS_CK-

TMDS 0.9pF ESD protection. (Note 1)

16

CE_REMOTE_IN

LV_SUPPLY referenced logic level into ASIC.

17

DDC_CLK_IN

LV_SUPPLY referenced logic level into ASIC.

18

DDC_DAT_IN

LV_SUPPLY referenced logic level into ASIC.

19

HOTPLUG_DET_IN

LV_SUPPLY referenced logic level into ASIC.

20, 21

NC

22

HOTPLUG_DET_OUT

5V_SUPPLY referenced logic level out plus 3.5pF ESD (Note 2) to connector

23

DDC_DAT_OUT

5V_SUPPLY referenced logic level out plus 3.5pF ESD to connector.

24

DDC_CLK_OUT

5V_SUPPLY referenced logic level out plus 3.5pF ESD to connector.

25

CE_REMOTE_OUT

5V_SUPPLY referenced logic level out plus 3.5pF ESD to connector.

39

ESD_BYP

This pin must be connected to a 0.1µF ceramic capacitor.

40

5V_OUT

55mA minimum overcurrent protected 5V output. This output must be

bypassed with a 0.1µF ceramic capacitor

Noets: 1. These 2 pins need to be connected together in-line on the PCB.

2. This output can be connected to an external 0.1µF ceramic capacitor, resulting in an increased ESD withstand voltage

rating.

3.These pins should be routed directly to the associated GND pins on the HDMI connector with single point ground vias at

the connector.