High-Power and Low-Voltage Audio Power Amplifier

Manufacturer's part number :

NJM2770R

Manufacturer New Japan Radio

New Japan Radio

Description :

The NJM2770 is a high-power and low-voltage audio power amplifier with standby function. No external coupling capacitors required because of the differential output type. Two external resistors adjust the closed loop gain. The output power is 250mW typical at 3V-supply 8ohm-load, and 400mW typical at 4.5v-supply 16ohm-load. The standby current is only 0.1µA typical. The package of the NJM2770 is MSOP8(VSP8)*, and the NJM2770 is suitable for PCS, codeless telephone, speaker amplifier for hands free system, and especially cellular phone because of low operating current, low standby current, and high power output.

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    Features

  • Operating Voltage (+2-+4.5V)
  • Operating Current (2.0mA typ. at V+=3V)
  • Low Power-Down Current (0.1μA typ)
  • High Power Output (250mW typ. at V+=3V RL=8Ω:400mW typ. V+=4.5V RL=16Ω)
  • Gain Range at Voice Band (Gv=0-43dB)
  • Load Impedance (RL=4-200Ω)
  • Thermal Shut Down Function
  • Package Outline (MSOP8(VSP8)MEET JEDEC MO-187-DA,MSOP8(TVSP8)MEET JEDEC MO-187-DA /THIN TYPE)
  • Bipolar Technology
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Operating voltage (V) 2 to 4.5  
Output power 250mW  
Stand-by Yes  
Mute Yes  
Package outline MSOP-8 (VSP-8)