Datasheet > G1412

G1412

更新时间： 2022-02-26 14:42:42

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描述
Ground-Reference Popless Stereo Headphone Driver

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G1412 数据手册

Global Mixed-mode Technology Inc.

G1412

Ground-Reference Popless Stereo Headphone Driver

Features

General Description

7mA Quiescent Current.

The G1412 stereo headphone driver is designed for

portable equipment where board space is limited. The

G1412 uses the dual external power supplies

PVDD/NVDD to produce a ground-reference output,

eliminating the need for large DC-blocking capacitors,

saving cost, board space, and component height.

Ground-Referenced Outputs Eliminate DC-Bias

Voltages on Headphone Ground Pin

Popless Function Embedded

70mW Per Channel into 16Ω loads

Low Distortion

Large Output Voltage Swing.

±1.8V to ±3.6V Dual Power Operating Range

Low Power Consumption.

The G1412 is a dual channel, low voltage, low power,

and high performance amplifiers, which can deliver up

to 70mW per channel into a 16Ω load with small THD+N

performance.

Over-Temperature Protection

UVLO Embedded

TDFN2X2-8 &TQFN3X3-16 Packages

The G1412 operates from a dual ±1.8V to ±3.6V sup-

plies, consumes only 7mA of supply current. With ex-

cellent AC performance (small THD), it can be designed

into a wide range of headphone driving application.

Applications

Cellular Phone

Notebooks

PDAs

MP3 Players

Portable Audio Equipment

Ordering Information

ORDER

TEMP.

RANGE

PACKAGE

(Green)

MARKING

REMARK

NUMBER

G1412RC1U

G1412R41U

1412

-40°C ~ +85°C

TDFN2X2-8

TQFN3X3-16

OBSOLETE

Note: RC :TDFN2X2-8

1: Bonding Code

U: Tape & Reel

R4:TQFN3X3-16

Pin Configuration

Typical Application Circuit

G1412

PGND

OUTL

NVDD

OUTR

PVDD

R_F

INL

Thermal

Pad

INR

SHDN

R_I

LEFT AUDIO

OUTPUT

TDFN2X2-8

LEFT AUDIO

INPUT

R_I

RIGHT AUDIO

INPUT

INR

PGND

RIGHT AUDIO

OUTPUT

OUTR

SVSS

OUTL

Thermal

Pad

PVDD

R_F

R_I

)

GAIN =

(

SHDNL

R_F

G1412 TQFN3X3-16

Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 1.5

Sep 30, 2009

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