One for the GURU's....

[Lostcause]

Hi chaps, TA2024 Tripath chips.... or any tripath chip for that matter.... No please, don't go away... please read on..
The chips put their internal reference voltage to ground via a 8.25K resistor.... Can someone explain what the purpose of this is please?
I just wondered if it contributes to the DC offset you get on these chips....?
Thanks for any 'Bias'ed' input you can give... sorry couldn't resist
Lee
The datasheet

 

[Eva]

It could be a dummy load to bias the internal regulator in absence of other loads.

It could be also a way to draw a current value within a particular range. This condition may be detected internally and used to turn on or off some feature.

 

[Lostcause]

Thanks Eva, I think your first point is the one I will go with.
Makes a lot of sense.
Thanks again for the enlightenment
cheers
Lee