• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 30 subscribers
  • Views 360 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ENABLE pin on LME49724

blue_luke
Prodigy 10 points

Hi all, first post here and not sure if in the right forum, but here goes.

I am designing yet another microphone preamp and I am wondering how to effectively use the enable pin.

In the architecture I am implementing, saving a bit of power is not an issue, but I wonder if I can use the enable pin as sort of a 'MUTE' function.

What is the behaviour of the amp while disabled if there is a normal amplitude signal at the input?

When the amp is disabled, what kind of input protection should I consider?

Thanks, Luc

  • 0
    TI__Guru**** 189401 points

    Hi, Luc,

    Welcome! Glad you get to work on your passion!

    I don't have experience with this device, but I would assume based on my experience with other devices that the inputs will clamp any input signal to a diode drop above ground due to the esd cell. 

    We have a standard Evm for op amps that you should be able to drop this on and see if it will fit your needs. Let me know if you can't find it. I think it costs $5 or something like that. 

    D2