AnsweredAssumed Answered

Understanding sampling rate in adau1446 evaluation board

Question asked by sss36 on Aug 26, 2013
Latest reply on Sep 12, 2013 by ColemanR

HI,

 

I want to use downsampling and upsampling in my algorithm.

 

I am doing some basic testing with sine tone. I generate sine tone with 500Hz with sample rate 48kHz. The output captured from DAC is 500Hz sine tone.

 

But If i generate same sine tone with 500Hz frequency with sampling rate 16kHz. The output captured from DAC is 1500Hz sine tone. I was thinking that the sine tone frequency will remain the same at 500Hz.

 

Is there any way I can change the sampling rate of whole system ADAU1446 and AD1938 to 16kHz?

 

 

Thanks

Outcomes