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AD9152 DC Test mode

Question asked by kenneth.witham on Feb 27, 2018
Latest reply on Feb 28, 2018 by kenneth.witham



We are trying to get the AD9152 up and running on our own custom boards and are running in to problems trying to configure it in a DC test mode. We are using a 245.76MHz REFCLK. I am setting the registers as in the spreadsheet I have attached. I use step 1 and 2 and then configure DC test mode to a large amplitude with an fs/8 modulation. Our DAC PLL is locking so I think I have that part correct. TXEN is set high. I have disabled DAC Protect mode in startup by setting register 0x12C to 0x00 as well.


Despite all this, I have been unable to get any output out of our DAC at all. Does anyone have any idea what I'm doing wrong?


Thanks so much!!