Ground Referenced Stereo Headphone Amplifier

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  • Description

    The NJU72040 is an audio headphone amplifier.Ground-referenced outputs eliminate output coupling capacitor. The pop noise suppression circuit removes a pop noise at the power-on and power-off.It is suitable for audio headphone amplifer application.


    • Audio applications which have audio headphone interface

  • Spec
    Supply Voltage 2.7V to 3.6V
    Channel 2ch.
    Voltage Gain Typ. +7.1dB / +13.1dB
    Output Power / Po Typ. 80mW
    Output Power / Vom Typ. 2.2Vrms
    Output Power / V+ 3.3V
    Output Power / RL 32 ohm
    Output Coupling Capacitor-less Output Coupling Capacitor-less
    Pop Noise Suppression Circuit Pop Noise Suppression Circuit
    Mute Yes
    Operating Current IDD=10.5mA typ.at V+=3.3V, No load, No Signal
    Wide Operating Temperature -40°C to 85°C
    Junction Temp. 125°C
    Package SSOP14
    Features Output Coupling Capacitor-less
    Single-end/Differential Input
    Gain(+6.4dB/+12.4dB (RL=32ohm),
    +7.1dB/+13.1dB (RL=10kohm)
    2Vrms output(RL=10kohm)
    Note 1 Gain Select
  • 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    • Please contact us or our distributors for unpublished reliability information.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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