NJU8755

更新时间： 2024-09-17 22:32:51

品牌	Logo	应用领域
NJRC		放大器功率放大器
页数	文件大小	规格书
6页	88K
描述
Analog Signal Input Stereo Class D Power Amplifier

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NJU8755 数据手册

NJU8755

PRELIMINARY

Analog Signal Input Stereo Class D Power Amplifier

ꢀGENERAL DESCRIPTION

ꢀPACKAGE OUTLINE

The NJU8755 is an analog signal input stereo class D

power amplifier. The NJU8755 includes Inversion

operational amplifier input circuit, PWM modulators, an

output-short protector and a low voltage detector. The

NJU8755 incorporates BTL amplifiers, which eliminate

AC coupling capacitors, capable of driving up to

1.2W/channel with simple external LC low-pass filters.

Class-D operation achieves high power-efficiency,

which achieves longer battery life for battery powered

applications, thus the NJU8755 is suited for portable

audio, note-PC, etc.

NJU8755V

ꢀPIN CONFIGURATION

ꢀFEATURES

ꢁ2-Channel Analog Signal Input

ꢁ2-Channel BTL Outputs :1.2W/channel at 5V into 8Ohms

ꢁStandby(Hi-Z), Mute Control

V_DD

IN_L

V_SS

IN_R

TEST

MUTE

V_DDL

COM

STBY

V_DDR

OUT_RP

V_SSR

ꢁBuilt-in Short Protector

ꢁBuilt-in Low Voltage Detector

ꢁOperating Voltage

ꢁCMOS Technology

ꢁPackage Outline

2.7 ~ 5.25V

OUT_LP

V_SSL

SSOP20

OUT_LN

V_DDL

OUT_RN

V_DDR

V_DDL

ꢀBLOCK DIAGRAM

V_DD

V_SS

V_DDL

OUT_LP

V_SSL

IN_L

Pulse

Width

V_DDL

Modulator

OUT_LN

V_SSL

COM

IN_R

V_DDR

OUT_RP

V_SSR

Pulse

Width

Modulator

V_DDR

OUT_RN

V_SSR

Short

Protector

Soft Start

Low Voltage

Detector

Control Logic

MUTE STBY

TEST

Ver.2003-03-12

- 1 -

12 3 4 5 6

中文翻译

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