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DS90UB954-Q1: CMLOUT Continuously Enable during Signal Transmission, Any Side Effect?

Part Number: DS90UB954-Q1

Hello Team,

CMLOUT at DES is used to check signal quality for FPDLINK system design.

Can I enable CMLOUT all the time during FPDLINK system in normal operation with camera sensor sending out image data?

I think DES enable CMLOUT increase DES radiation emission and may interfere other circuit. So it is better to just enable CMLOUT for diagnostic and disable it when system in normal operation.

Thank you.

Regards,

Ting

  • Hello,

    Yes, the CMLOUT can be enabled during normal operation however this is not typically recommended. As you point out it will add another potential noise source to the system which is running at the high speed datarate. It is better to enable this for debug as needed and keep it disabled for normal operation.