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CDCI6214: Using single ended LVCMOS input?

ajayt
Genius 9555 points

Part Number: CDCI6214

 

I am looking at CDCI6214 clock generator, is there a standard method of connecting one of the REFP inputs as a single ended LVCMOS input; perhaps similar to the XIN input, where a potential divider followed by an ac coupler is used?

  • 0
    TI__Mastermind 32575 points
    You can directly connect a LVCMOS driver through series/source termination (e.g. 22 ohms) to the REFP input, and pull-down the non-driven REFN input to ground. The REF input buffer levels are referenced to the VDDREF supply, so LVCMOS driver voltage should match the VDDREF voltage.

    Alan