Stereo BTL Outputs Switching Driver for Class D Amplifier

Manufacturer's part number :

NJU8714VB2

Manufacturer New Japan Radio

New Japan Radio

Description :

The NJU8714 is a stereo BTL outputs switching driver for class D amplifier. It receives PWM/PDM signals from DSP outputs, and drives headphones or speakers by BTL outputs.

Output drivers are composed of Series-Connected N-channel FETs, and output voltage levels can be controlled by variable power supply with keeping all of input signal information.

The NJU8714 incorporates BTL outputs amplifiers, which eliminate AC coupling capacitors. Also, it provides "SEL" terminal which selects "Synchronous" or "Asynchronous". "Asynchronous" can be reduced the operating current. Therefore, it is suitable for portable audio set and others.

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    Features

  • 2-channel 1bit Audio Signal Input
  • Stereo BTL Outputs
  • Output Power: Typ.150mW@8Ω
  • BEEP Function
  • Standby Function
  • Output Driver Control Function
  • Operating Voltage VDD: 1.7V to 2.7V; VDDO: 0V to 2.0V ; VG: 4.5V to 5.25V
  • CMOS Technology
  • Package Outline:SSOP20-B2
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Input Signal PWM/PDM  

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Channel 2  
Operating Voltage 1.7 to 2.7V  
Output Power 150mW  
Standby Function Yes  
Mute Function No  
Attenuator No  
Package Outline SSOP-20-B2