TCA9543A: Need to know switch which can handle CEC of HDMI

Irfan Shaikh

Part Number: TCA9543A
Other Parts Discussed in Thread: SN74LVC1G3157

Tool/software:

Dear Team,

I am designing a HDMI interface where each connector acts as both input or output.
Well i need to control the CEC logic using a switch , so it should be bidirectional and based on some logic output should be selected.
Should there be separate CEC for each connector.

Thanks,
Irfan

4 months ago

0 Clemens Ladisch 4 months ago

Guru 317260 points

CEC is electrically similar to I²C, so this might work.

But I²C uses two lines, and the TCA9543A must be controlled with I²C. Better use a simple switch like the SN74LVC1G3157.

0 Kameron Hill 4 months ago in reply to Clemens Ladisch

TI__Mastermind 24440 points

Hello Ifran,

I agree with Clemens and if you are interested in using the SN74LVC1G3157 like clemens and other people have thought to use in the past please let us know

Regards,

Kameron

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TCA9543A: Need to know switch which can handle CEC of HDMI