Datasheet > G1431_15

G1431_15

更新时间： 2024-11-22 01:25:31

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描述
2W Stereo Audio Amplifier

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G1431_15 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 or 20-pin TQFN 4X4. It

can drive 2W continuous 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 de-

driving power, G1431 supports the Bridge-Tied Load

(BTL) mode for driving the speakers. For the low cur-

rent 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

Over-Temperature Protection Embedded

20-Pin TSSOP-P & 20-Pin TQFN 4X4

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

G1431R9U

TEMP.

RANGE

PACKAGE

(Green)

MARKING

G1431

1431

-40°C to +85°C TSSOP-20 (FD)

-40°C to +85°C TQFN4X4-20

R9:TQFN4X4-20

Note: F2: TSSOP-20 (FD)

U: Tape & Reel

Pin Configuration

G1431

GND

GAIN0

GAIN1

LOUT+

LIN-

GND

19 SHUTDOWN

ROUT+

RIN-

SHUTDOWN

GND

10 NC

GND

16 VDD

Thermal

Pad

Thermal

Pad

GND

15 PVDD

PVDD

RIN+

14 ROUT-

13 GND

GAIN0

BYPASS

LIN+

LOUT-

LIN+

GAIN1 20

BYPASS

GND

Top View

TSSOP-20 (FD)

G1431 TQFN4X4-20

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 1.8

Dec 22, 2008

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