SBAU320 July 2018 AMC1035 , AMC1035-Q1
The AMC1035EVM digital input/output interface is composed of two, two terminal screw connectors located at J4 and J5. Pin 1 of J4 is the output data from the modulator and pin 1 of J5 is the clock input for the modulator U1. A 9 MHz to 21 MHz external clock must be applied to pin 1 of J5 referenced to ground, pin 2 of J5. The magnitude of this clocking signal should not exceed VDD +0.5 V.