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.

  • TI Thinks Resolved

LMV1012: Dual output for microphone signal

Intellectual 2395 points

Replies: 4

Views: 99

Part Number: LMV1012

Hi team,

My customer is looking for a dual output signal for microphone system.

Their microphone spec is as below. Is LMV1012 suitable for their design?

Impedance: 2.2kohm

Sensitivity:-44db ( about: 6.3mV )

  • Hi, Feng,

    We will take a look at this thread and will provide an answer as soon as possible.

    Best regards,
    Luis Fernando Rodríguez S.

  • Hi Feng,

    By "dual output signal" do you mean a differential output? Or two channels?

    If looking for two channels you can use a pair of LMV1012 or a dual channel op amp. You should consider LMV1012 is a very small DSBGA device, not sure if that's what you're looking for.

    If you need a differential output, perhaps using a fully differential amp can be an option, you can take a look at this appnote: https://www.ti.com/lit/an/sboa332/sboa332.pdf

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

  • In reply to Ivan Salazar:

    Hi Ivan,

    Thank for your help. It is two channel.

    If the source signal is only one channel, would you suggest to connect two LMV1012 with single source instead of one LMV1012 to dual output channel from point of view of load effect. Not sure  what kind of load LMV101 will connect to in the usually case?

    Ben,

  • In reply to Feng bin Su:

    Hi Ben,

    You may connect two amplifiers with a single source.

    The output connection from LMV1012 would depend on your application, it could be connected to a power amplifier for listening or to an ADC for recording.

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

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.