AnsweredAssumed Answered

Ad9361 rx sampling frequency

Question asked by a55moham on Sep 2, 2016
Latest reply on Sep 20, 2016 by DragosB

I am using combination of ZC702 and fmcomms5. Also I am using the No-OS driver. I would like to ask if I could set the rx sampling frequency to any value? Could I set it for example to 1 MHz? The default value is 30.72 MHz and I would like to send sinwave with 1 KHz using DMA so 30.72MHz is very large. I am setting now the sampling frequency to be 960 KHz which is 30.72 MHz divided by 32 but I am seeing strange behavior when I use the  adc_capture function. Sometimes every received sample is repeated 4 times and some times not. I checked the output of the transmitter using spectrum analyzer and it is 1 KHz as expected. Therefore, I am suspecting the receiver. Do you have any explanation what may cause this?

Thanks & Regards,