TLV320AIC3204: Can I resolve pop noise of line out?

Downey, 

The line outputs on the TLV320AIC3204 do not have pop suppression, as they are intended to be used for driving a class D amplifier or other device with a mute. 

the HPL and HPR outputs do have pop suppression. 

best regards,

-Steve Wilson

Hi Steve,

1. Do you have information on fade in effects? We must eliminate that phenomenon.

2. When LOL, LOR is power on, Does pop noise occur unconditionally?

Thanks,

Downey Kim.

Downey Kim, 

1. This is likely the soft-stepping.  Is the DAC unmuted at the same time that the output is powered up? see page 0 register 0x3F   

2. The pop should only occur when LOL and LOR are powered up/down. 

best regards,

-Steve Wilson

Hi Steve,

1.when stopping music, the value of page 0 register 0x3F is 0x14. and when starting music, the value of page 0 register 0x3F is 0xD4. 

I did try to soft-stepping disable. but fade in effect was same.

2. I tried several changes, The disappearance of pop is when LOL and LOR always keep power on.

Thanks.

Downey Kim.

Downey kim, 

I will test this on the EVM and report back my findings.

best regards,

-Steve Wilson