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Functional description

The HDMI2C1-6C1 is a fully integrated ESD protection and signal conditioning device for the control stage of

HDMI transmitters (source).

The component offers two buffers, integrating signal conditioning dynamic pull-up on a DDC bus for maximum

system robustness and signal integrity. A bidirectional CEC block is integrated, able to wake-up the application

from standby mode (all power supply off, except the CEC power supply).

The +5 V supplied to the cable is protected against accidental surge current and short circuit. All these features

are provided in an 18 leads QFN package featuring natural PCB routing, cost optimization, and saving space on

the board.

The HDMI2C1-6C1 is a simple solution that provides HDMI designers with an easy and fast way to reach full

compliance with the stringent HDMI CTS on a wide temperature range. STMicroelectronics proposes also a large

range of high speed ESD protections and common mode filter (ECMF series) dedicated to the TMDS lanes giving

the flexibility to the designer to filter and protect these (high speed video link against ESD strikes and EMC

issues).

Figure 1. Pin configuration (bump side) pin out, top view

HDP_IC

SDA_IC

CEC_IC

SCL_IC

FAULT

SCL

GND

CEC

VDD_CEC

SDA

GND

HDMI2C1-6C1

Functional description

DS9943 - Rev 4

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