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Use external ref ADS42JB69EVM

Other Parts Discussed in Thread: LMK04828, ADS42JB69EVM

Hi, I would like to use an external reference 10 MHz TTL instead of the onboard reference clock for the LMK04828 on the ADS42JB69EVM.  I will connect to J14 (REF OSC_IN).  Do I need to change jumper settings?  There are 3 pins with labels but not sure which one it belongs to: JP2 (CDC_CLK) or SJP3 (REF_SEL).  The jumper is currently on pins 2 & 3 (default from TI).