Low-Voltage Headphone Amplifier for Portable-Audio

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJM2772 is a low voltage headphone amplifier for portable audio.

The NJM2772 includes mute circuit, centre amplifier and beep input, reduce the external parts, standby circuit and centre amplifier with ON/OFF, applies to low current consumption. The mute function reduces the turn-noise at standby mode.

The NJM2772 is suitable for portable MD, CD, and others portable audio system with headphone amplifier.

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  • Operating Voltage V+=1.8-4.5V
  • Operating Current 1.2mA typ. @Centre Amp. Off 2.0mA typ. @Centre Amp. On
  • Low Standby Current 18μA typ.
  • High Output Power 6mWmin. @RL=16Ω, THD=10%
  • Fixed Gain 11.5dB typ.
  • Package Outline SSOP14
  • Bipolar Technology
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Number of channels 2  

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Operating voltage (V) 1.8 to 4.5  
Output power 8mW  
Stand-by Yes  
Mute Yes  
Package outline SSOP-14