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LM49251: Input range

Wiky Liao
Intellectual 1790 points
Part Number: LM49251

Hi Team,

May I know the input range of LM49251? Usually amplifier will introduce the input dynamic range, 1Vrms or 0.7Vrms mainly, but I can't find this data at LM49251 datasheet, could you help to provide? thanks a lot!

Best Regards.

Wiky

  • 0
    Guru 140200 points
    Hi Wiky,

    unbelievable that this important data is totally missing in the datasheet!!

    Eventually, figure 58 of datasheet can help...

    Kai
  • 0
    TI__Guru** 102135 points
    Hi Wiky,

    I apologize for the lack of information on this device documentation. Unfortunately this is an old and legacy device so additional information might not be available; currently I don't have access to an evaluation module of this device to provide bench test values.
    As Kai suggests, data sheet figures like 58 and 59 could give an idea of input vs output. In addition, based on gain setting, output limit (if used) and THD+N vs Pout the input dynamic range could be roughly estimated.

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