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NJU8759 Series
Analog Signal Input Monaural Filter Less 3W Class-D Amplifier

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  • Description

    The NJU8759 is an analog signal input monaural filterless class-D power amplifier. Operating voltage from 1.8V to 5.5V single supply can be used with 2-cell batteries. NJU8759 features Class-D operation with high output capability, is 1.7W output (8Ω load) and 3W output (4Ω load). The BTL output configuration can reduce the coupling capacitor. Furthermore, the output LC filterless architecture, which was not available in conventional class-D, reduces external parts and PCB size. The NJU8759 operates from a single power supply of 1.8 V and 1 µA maximum standby current, and is ideal for small portable devices and portable audio devices, as well as alarm devices and security devices that require low power and high output.


    • Security equipment
    • Portable Equipment
    • Portable Audio

  • Spec
    Supply Voltage 1.8V to 5.5V
    Channel BTL 1ch.
    Input Signal Analog
    Output Voltage / Po Typ. 3W
    Output Voltage / V+ 5V
    Output Voltage / RL 4 ohm
    Output Filter-less Output LC Filterless Architecture
    Pop Noise Suppression Circuit Built-in Pop noise reduction(Turn on/Turn off)
    Stand-by Yes
    Mute Yes
    Operating Current Low Supply Current (V+=3.6V) (2.7mA)- Standby Current (1µA max.)
    Wide Operating Temperature -40°C to 85°C
    Junction Temp. 125°C
    Package WCSP9
    Features Single-end input
    Differential input corresponds
    Note 1 Analog Differential Input / PWM Output

    Protections / Functions

    Stand-by Mute Fine Tune Sensitivity
  • 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

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Category:Audio Amplifiers

Sub Ctegory Class D Amp.
Channel(ch) 1
Supply Voltage
Supply Voltage
Output Power
Po typ