TAS5805M: [TAS5805M] TAS5805M output voltage is small

Hi Zhiqiang,

What is PVDD value? Can you check the DAC Gain and analog gain?

Hi,Yang

PVDD is 19v.

And we don't use ppc3.

And this is register map:

thanks

Hi Zhiqiang,

1. Your application is on TI EVM or your board?

2.Pls check PVDD is normal when play music.

3.Pls provide your initial configuration file. Or how to configure IC in your application?

Hi Yang:

1. Your application is on TI EVM or your board?
>>>
Yes,we use our board

2.Pls check PVDD is normal when play music.
>>>
The PVDD always is 19.4v

3.Pls provide your initial configuration file. Or how to configure IC in your application?
>>>
I have updated the driver and register,and please check it

code_tas5805.zip

thanks

Hi Zhiqiang,

I use the configuration you provided to log in on our EVM, but can't reproduce this issue.

Pls help to check the circuit and the input of your board.

Do you add DSP function in your application?

Could you find an EVM to reproduce this issue?

Hi Yang:

Could you find an EVM to reproduce this issue?

>>>

sure,but could you tell me how to loader head(.h) files?
We can create head file by PPC3
But if we load head file,the PPC3 can't show the changes.
Like:
Change the gain from 0db to 1db
Created head file,and load head file again
The PPC3 still show 0 db gain

thanks