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Crystal Parameters for AD9361

Question asked by digi_designer on Sep 10, 2015
Latest reply on Sep 16, 2015 by digi_designer

I made a custom board for the AD9361 and based on off the FMCOMMS3 board. I followed the FMCOMMS3 design but could get the exact crystal in a reasonable time. I'm using a crystal with the same parameters but it's a different manufacturer, is 30 MHz as opposed to 40, and has a frequency stability of +/-10 ppm as opposed to 15 ppm. Should this work? I'm unable to pass TX tuning and I think it may be an issue with the crystal of the TX traces. I've gone through the troubleshooting methods for TX tuning in other posts but none have worked.