Q: TPA5051 Audio Pops when switching delay

Hi All

Just looking for confirmation that when you want to change the delay, you need to soft mute the audio before the delay change to avoid a pop. My application is to use a gui to adjust the delay in my system. I have a slide bar and the I can slide the delay from max to min.

 

Thanks


A: Re: TPA5051 Audio Pops when switching delay

Hello,

There should not be any pop when changing the delay on the fly. The device will mute itself until the RAM is filled beyond the set delay time. The I2S bus is simply 0 during this time. Pop/Click is caused by DC ramping too fast or too slowly at the output. The output caps will have already charged by this point.