NJU8715 - JRC

NJU8715 Switching Driver with Regulator

The NJU8715 is a switching driver with regulator for class-D headphone amplifier. It incorporates an optimum regulator for the driver of headphone amplifier, class–D line amplifier and a beep amplifier. The NJU8715 converts 1bit digital signal of the PWM or the PDM to an analog signal output through a simple external LC low-pass filter. The NJU8715 provides .

Features

2-channel 1bit Audio Signal Input Headphone Output Built-in Class D Line Amplifier Built-in Regulator for Driver Beep Function Logic Operating Voltage 1.9 to 2.6V (VDD) Regulator Operating Voltage 4.0 to 5.75V (VG) 1.9 to 4.0V (VREG) C-MOS Technology Package Outline QFN28 PIN CONFIGURATION 28 1 MODEB BEEPIN DIN2 DIN1 OBEEP1 VSS OUT1 CL CH VG NC OBEEP2 VSS OUT2 VDDO1 VREGO VREG VCONT VREF CFB VDDO2 VCONT ENVG ENREG EN2 EN1 VDD MCK VSS VDD VSS DIN1 Charge Pump Level Shifter Level Shifter Pre Driver Regulator VDDO1 HP Amp VREGO BLOCK DIAGRAM VREG CH VG CL VREF CFB OUT1 Pre Driver LINE Am.