Low Voltage Microphone Amplifier for Portable Audio

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  • Description

    The NJM2173A is a low voltage microphone amplifier designed for portable audio items. It includes standby,two-type gain selector,and power ripple rejection adjustment circuit. It realizes very low turn-noise at standby mode. It is suitable for portable Mini-Disc,portable Compact-Disc,and other microphone amplifier application.

  • Spec
    Supply Voltage 2.7V to 4.5V
    Channel 2ch.
    Voltage Gain Typ. +13dB / +29dB
    Stand-by Yes
    Mute Yes
    Operating Current 2.2mA typ. at V+=2.7V
    Wide Operating Temperature -20°C to 75°C
    Junction Temp. 125°C
    Package SSOP14
    Features Built-in Regulator for Microphone
    Note 1 Internal Two-type Gain Select Function (13dB typ./ 29dB typ.)
    Note 2 Supply Current in Standby Mode (1µmA max.)
  • Technical
  • Quality &
    • Refer to the datasheets for the details on the product.
    • The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
    • Please contact us or our distributors for unpublished reliability information.

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Functional Description

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