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adc14155 adc

Sara Caron76
Prodigy 150 points

Hi

the question is whether the adc14155qml needs a differential clock or whether it can be signal ended and the the clk- grounded. Does Clk- need to be terminated with 50 ohms? My clock currently is 128 MHz, SE, Pin ~+15 dBm.

  • 0
    TI__Expert 4340 points

    Hi,

    The clock can be single ended. Providing a termination at the ADC clock input allows for a sharp edge by miniimzing signal reflections which is desirable, although the termination is not strictly required and is not critical when there are no long transmission lines. The datasheet provides useful information on this subject at page 22.

    Regards, Josh