TS4973IJT Datasheet

IC型號(hào)：
TS4973IJT
PDF描述：
1.2W TWO AUDIO INPUTS WITH GAIN CONTROL POWER AMPLIFIER WITH...
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377.67KB
PDF頁數(shù)：
9頁
芯片廠家：
STMICROELECTRONICS

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TS4973

1.2W

TWO AUDIO INPUTS WITH GAIN CONTROL POWER

AMPLIFIER WITH STANDBY MODE ACTIVE LOW

ADVANCE DATA

OPERATING FROM

= 2.8V to 5.5V

RAIL TO RAIL

OUTPUT

1.2W OUTPUT POWER @ Vcc=5V, THD=1%,

F=1kHz, with

鈩?/div>

Load

MODE

(10nA)

PIN CONNECTIONS

(top view)

TS4973IJT - FLIP CHIP

ULTRA LOW CONSUMPTION IN STANDBY

53dB

PSRR @ 217Hz from 2.8 to 5V

LOW POP & CLICK

ULTRA LOW DISTORTION

(0.05%)

GAIN SETTINGS PIN :

UNITY GAIN STABLE

FLIP CHIP PACKAGE 9 x 300碌m bumps

DESCRIPTION

At 3.3v, the TS4973 is an Audio Power Amplifier

capable of delivering 400mW of continuous RMS

ouput power into a 8

鈩?/div>

bridged-tied loads with 1%

THD+N, and 30mW( typ ) per channel of continu-

ous average power into stereo 32

鈩?/div>

BTL loads with

0.5% THD+N from 20Hz to 20kHz. An external

standby mode control reduces the supply current

to less than 10nA. An internal over-temperature

shutdown protection is provided.

The TS4973 has been designed for high quality

audio applications such as mobile phones and to

minimize the number of external components. It

has two inputs which can be used to switch the

gain between 6dB ( internal ) or a user鈥檚 adjust-

able gain setting with one external resitance.

APPLICATIONS

Vin2

VCC

STBY

VOUT1

VOUT2

Vin1

GND

BYPASS

TYPICAL APPLICATION SCHEMATIC

Mobile Phones (Cellular / Cordless)

PDAs

Laptop/Notebook computers

Portable Audio Devices

ORDER CODE

Part

Number

TS4973IJT

Temperature

Range

-40, +85擄C

Package

Marking

鈥?/div>

A73

VCC

Cin1 Rin

Audio

Inputs

In1

VCC

Vout 1

Cin2

Gain Setting level

threshold = 0.9V

In2

8 Ohms

Gain Setting

AV = -1

Vout 2

Bypass

Standby level

threshold = 0.9V

Standby

Bias

GND

TS4973

J =

Flip Chip Package - only available in Tape & Reel (JT))

February 2003

This is a preliminary information on a new product now in development. Details are subject to change without notice.

1/9

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