5 External Clocking Hardware Setup
The onboard CDC is useful for general evaluation and relieves the user requirment of needing additional signal
generators. The following section shows how to configure and program the ADC364xEVM for external clock
operation for Real Decimation Mode. This mode requires two external clock sources (must be frequency locked).
If Bypass Mode or Complex Decimation Mode are to be used with an external clock source(s), use the steps
outlined with the onboard clock for Bypass Mode and Complex Decimation mode for guidance on how the
ADC35xx GUI should be configured (with the exception of using external clocks).
5.1 Hardware Modfications
The following hardware modifications must be made in order to operate the ADC364xEVM using an external
sample and (if required) data clock .
External Sample Clock Modification:
External Clocking Hardware Setup
20
ADC364xEVM Evaluation Module
SBAU232 – OCTOBER 2020
Copyright © 2020 Texas Instruments Incorporated
