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NJU8711

3V Operation Switching Driver for Class D Amplifier

Japan Radio Corporation  

NJU8711

PRELIMINARY

3V Operation Switching Driver for Class D Amplifier

! GENERAL DESCRIPTION

! PACKAGE OUTLINE

The NJU8711 is a Switching Driver for class D Amplifier

including BEEP and BPZ (Bipolar Zero) output circuits. It

converts 1bit digital signal input, such as PWM or PDM

signal, to analog signal output with simple external LC

low-pass filter.

The NJU8711 realizes very high power-efficiency by

class D operation. Therefore, It is suitable for portable

audio set and others.

NJU8711V

! FEATURES

# 2-channel 1bit Audio Signal Input

# Standby(Hi-Z), BPZ Control

# Internal BPZ Charger

# Beep Function

# Operating Voltage : 2.0V to 3.6V

# CMOS Technology

# Package Outline : SSOP10

! PIN CONFIGURATION

EN1

1

10

MCK

2

9

VDD

3

8

BEEP

4

7

EN2

5

6

OUT2

IN2

VSS

IN1

OUT1

! BLOCK DIAGRAM

VDD VSS

IN1

BEEP

BPZ Output

IN2

Output Control

MCK EN1 EN2

BPZ Output

OUT1

OUT2

-1-

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