I use the ADAU1761 EVB to test the ADAU1761 audio performance , but I test result is not match data sheet specification , as follow as [ No Filter (RMS) and AVDD=3.3V ]
1) I use ADAU1761 DSP function to production single tone ( 1 KHz) , use volume control to test dynamic range that result limit is -65 dB.
2) as same setting use mute function test Signal-to-Noise Ratio is -65 dB
Could you tell me that the test mode is right or error ?
Also, I have no way to set a compression ratio of 1:2 in the compressor function.
Could you teach to set the compression ratio is 1:2 how I should set it?