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TPA61111A2 SHUTDOWN PIN

Bruce Egnater

Prodigy 150 points

Other Parts Discussed in Thread: TPA6132A2

Only mention of the Shutdown pin in the data is "Puts the device in a low quiescent current mode when held high". If I don't need this function, which I don't believe I do, can the pin just be tied to ground? Is this pin needed to reduce the "start up pop" or not required if the R/C value rules are following in the application information.

over 11 years ago

0 Don Dapkus over 11 years ago

TI__Guru**** 189399 points

Hi, Bruce,

Yes, you can tie it to ground. However, keep in mind that if you have pops in upstream stages, there will be no way to keep them from getting to the headphones if you don't use the shutdown pin.

BTW, I really love some of our newer HP amps - TPA6132A2 for example. It's awesome!!!

-d2

0 Bruce Egnater over 11 years ago in reply to Don Dapkus

Prodigy 150 points

Thanks. I understand.

FYI, we attempted to use the TPA6132A2 but found it virtually impossible to hand solder the tiny package for prototyping. Open to your suggestions.

0 Don Dapkus over 11 years ago in reply to Bruce Egnater

TI__Guru**** 189399 points

Bruce,

I can't find the exact model we have in our lab, but something similar to this makes quick work of re-work...

http://www.hakkousa.com/detail.asp?PID=4978&Page=1

-d2

0 Don Dapkus over 11 years ago in reply to Don Dapkus

TI__Guru**** 189399 points

Hi, Bruce,

Can you verify my answer if you're happy so I know and can close out this thread?

-d2

0 Bruce Egnater over 11 years ago in reply to Don Dapkus

Prodigy 150 points

Yes, thank you very much. Sorry I didn't know abut closing the thread.