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LM48560: Unused amp inputs & H/W Shutdown in S/W Mode

Andrew Rust
Prodigy 215 points
Part Number: LM48560

Hi there,

Two LM48560 questions please:

I am only using IN1 - what should I do with IN2+ and IN2-:

* tie them to 0V,

* leave them floating, or

* Something else?

Does H/W Shutdown still work in S/W Mode, giving 0.1uA typ (2uA max)?

Many thanks for your help.

Cheers, A.

  • 0
    TI__Guru** 109055 points

    Hi Andrew,

    If only using one of the inputs (IN1 or IN2) you can either leave them floating or AC couple to GND to prevent any noise coupling in.
    Regarding shutdown control, hardware shutdown would override software shutdown.

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators