NJU8789 データシートの表示（PDF） - Japan Radio Corporation

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NJU8789

Monaural BTL Output Clock-less Switching Driver for Class D Amplifier

Japan Radio Corporation  

NJU8789

Monaural BTL Output Clock-less Switching Driver for Class D Amplifier

GENERAL DESCRIPTION

The NJU8789 is a monaural BTL output switching driver

for class D amplifier including Separated Power Source

terminals between Input and Output. It converts 1bit

digital signal input, such as PWM or PDM signal.

The NJU8789 realizes very high power-efficiency by

class D operation. Therefore, It is suitable for portable

set with speaker.

PACKAGE OUTLINE

NJU8789V

FEATURES

Clock-less switching driver

1-channel 1bit Audio Signal Input

Monaural BTL Output

Standby(Hi-Z) Control Function

Operating Voltage : 1.8V to 4.5V

Driving Voltage

: VDD to 4.5V

CMOS Technology

Package Outline

: SSOP10

PIN CONFIGURATION

VDD

1

IN

2

NC

3

TEST

4

STBYb

5

10

VSS

9

OUTP

8

VDDO

7

OUTN

6

VSS

BLOCK DIAGRAM

VDD

VDDO

IN

STBYb

LEVEL

SHIFTER

LEVEL

SHIFTER

VSS

OUTN

OUTP

NJU8789

Ver.2009-01-21

-1-

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