1/9

F=1kHz, with 8

MODE (10nA)

DESCRIPTION

At 3.3v, the TS4973 is an Audio Power Amplifier

capable of delivering 400mW of continuous RMS

ouput power into a 8

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

ous average power into stereo 32

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’s adjust-

able gain setting with one external resitance.

APPLICATIONS

ORDER CODE

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

PIN CONNECTIONS (top view)

Part

Number

Temperature

Range

Package

Marking

J

TS4973IJT

-40, +85°C

•

A73

TYPICAL APPLICATION SCHEMATIC

Cb

Cin1 Rin

RL

8 Ohms

Cs

Inputs

Audio

VCC

Bias

AV = -1

In1

In2

Bypass

Standby

Vout 1

Vout 2

+

-

+

-

1

3

6

8

2

5

7

4

9

Gain Setting

TS4973

Cin2

Standby level

threshold = 0.9V

Gain Setting level

threshold = 0.9V

TS4973IJT - FLIP CHIP

Vin1

GND

BYPASS

VOUT2

VCC

Vin2

VOUT1

GS

STBY

Vin1

GND

BYPASS

VOUT2

VCC

Vin2

VOUT1

GS

STBY

1.2W TWO AUDIO INPUTS WITH GAIN CONTROL POWER

AMPLIFIER WITH STANDBY MODE ACTIVE LOW

February 2003

ADVANCE DATA

TS4973

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