High-Power & Low-Voltage Stereo Audio Power Amplifier with 3D Surround

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  • Description

    The NJU7085 is a stereo audio power amplifier with surround sound technology for portable applications. No external coupling capacitors are required because of the differential outputs. The closed loop gain is adjusted by two external resistors. And the standby mode control reduces the supply current. The NJU7085 contains pop & click noise protection circuitry which eliminates noises during turn-on and turn-off transitions and RF rectification canceling circuitry. It is suitable for portable telephone, wireless telephone, button telephone, and other speaker amplifier applications.


    • Portable DVD/TV
    • Cradle Speaker
    • Mobile-phone/PHS

  • Spec
    Supply Voltage 2.8V to 5.5V
    Channel BTL 2ch.
    Output Power / Po Typ. 400mW
    Output Power / V+ 3V
    Output Power / RL 4 ohm
    Stand-by Yes
    Mute Yes
    Operating Current IDD1=4.6 mA typ.(Mobile mode)/IDD4=2µA max.(Standby mode)
    Wide Operating Temperature -40°C to 85°C
    Junction Temp. 125°C
    Package PCSP32-F7,SSOP32
    Features surround sound technology
    Note 1 Variable Surround Effect by external resistor
    Note 2 Low Output Noise (25µVrms typ.)
  • 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    • Please contact us or our distributors for unpublished reliability information.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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