Other Parts Discussed in Thread: LMK04828,
On the AFE7950EVM, connector J14 allows for an external clock reference input into the LMK04828 (U27). If an external 122.88 MHz clock was supplied (instead of using the internal oscillator Y2), would the following Latte script commands be used?
lmkParams.pllEn = False
lmkParams.inputClk = 122.88
lmkParams.lmkFrefClk = True # Enables the AFE FRef signal?
lmkParams.sysrefFreq = AFE.systemStatus.sysrefFreq #Currently 1.92 GHz
I examined the "AFE79xx_External_Clocking_Guide.pptx" document, but we would prefer not to generate external DAC/ADC sampling clocks for the AFE (just feeding in FRef at 491.52 MHz from the LMK). Thank you for your assistance.
