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NJU72040 Series
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

    Protections / Functions

    Stand-by Mute Fine Tune Sensitivity
  • Technical
  • Quality &
    • Refer to the datasheets for the details on the product.
    • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

Download Datasheet

Functional Description

Search for similar products under conditions below.

Category:Audio Amplifiers

Sub Ctegory Power Amp./ Headphone Amp.,Line Amp.
Channel(ch) 2
Supply Voltage
Supply Voltage
Output Power
Po typ
Output Voltage vom(Vrms) 2.2Vrms
Voltage Gain(dB) +7.1dB/ +13.1dB