Datasheet > G1431

G1431

更新时间： 2024-11-18 03:38:23

品牌	Logo	应用领域
致新 - GMT		音频放大器
页数	文件大小	规格书
13页	281K
描述
2W Stereo Audio Amplifier

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G1431 数据手册

G1431

Global Mixed-mode Technology Inc.

2W Stereo Audio Amplifier

Features

General Description

Internal Gain Control, Which Eliminates Exter-

G1431 is a stereo audio power amplifier in 20pin

TSSOP thermal pad package. It can drive 2.0W con-

tinuous RMS power into 4Ω load per channel in

Bridge-Tied Load (BTL) mode at 5V supply voltage. Its

THD is smaller than 1% under the above operation

condition. To simplify the audio system design in the

notebook application and to enlarge the driving power,

G1431 supports the Bridge-Tied Load (BTL) mode for

driving the speakers. For the low current consumption

applications, the SHDN mode is supported to disable

G1431 when it is idle. The current consumption can be

reduced to 150µA (typically).

nal Gain-Setting Resistors

Depop Circuitry Integrated

Output Power at 1% THD+N, VDD=5V

--2.0W/CH (typical) into a 4Ω Load

--1.2W/CH (typical) into a 8Ω Load

Bridge-Tied Load (BTL) Supported

Fully differential Input

Shutdown Control Available

Surface-Mount Power Package

20-Pin TSSOP-P

Amplifier gain is internally configured and controlled by

two terminals (GAIN0, GAIN1). BTL gain settings of

6dB, 10dB, 15.6dB, 21.6dB are provided.

Applications

Stereo Power Amplifiers for Notebooks or

Desktop Computers

Multimedia Monitors

Stereo Power Amplifiers for Portable Audio

Systems

Ordering Information

ORDER

NUMBER

G1431F2U

TEMP.

RANGE

PACKAGE

(Pb free)

MARKING

G1431

-40°C to +85°C TSSOP-20 (FD)

Pin Configuration

G1431

GND

GAIN0

GAIN1

LOUT+

LIN-

GND

19 SHUTDOWN

ROUT+

RIN-

Thermal

Pad

16 VDD

15 PVDD

PVDD

14 ROUT-

RIN+

LOUT-

LIN+

GND

BYPASS

GND

Top View

Bottom View

TSSOP-20

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 1.3

Sep 23, 2005

12 3 4 5 6 7...13

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