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TS4973

1.2W Two Audio Inputs With Gain Control Power Amplifier with Standby Mode Active Low

STMicroelectronics 

TS4973

1.2W Two Audio Inputs With Gain Control Power Amplifier

with Standby Mode Active Low

s Operating from VCC = 2.8V to 5.5V

Applications

s RAIL TO RAIL Input/Output

s 1.2W output power @ Vcc=5V, THD=1%,

F=1kHz, with 8Ω load

s Ultra low consumption in standby mode

(10nA)

s Mobile phones (cellular / cordless)

s PDAs

s Laptop/Notebook computers

s Portable audio devices

s 53dB PSRR @ 217Hz from 2.8 to 5V

s Low distortion (0.5%)

Pin Connections (top view)

s Gain settings pin: GS

) s Unity gain stable

t(s s Available in lead free flip-chip 9 x 300µm

bumps

uc Description

rod At 3.3v, the TS4973 is an Audio Power Amplifier

P capable of delivering 500mW of continuous RMS

te output power into a 8Ω bridged-tied loads with 1%

THD+N, and 150mWof continuous average power

le into 32Ω. An external standby mode control

so reduces the supply current to less than 10nA. An

b internal over-temperature shutdown protection is

O provided.

- The TS4973 has been designed for high quality

t(s) audio applications such as mobile phones and to

minimize the number of external components. It

c has two inputs which can be used to switch the

du gain between 6dB (internal) or a user’s adjustable

ro gain setting with one external resistance.

TS4973IJT / TS4973EIJT - FLIP CHIP

Vin2

VCC

STBY

VOUT1

GS

VOUT2

Vin1

GND

BYPASS

te P Order Codes

le Part Number

so TS4973IJT

ObTS4973EIJT

Temperature Range

-40, +85°C

Package

Flip-Chip9

Lead Free Flip-Chip

Packaging

Tape & Reel

Marking

A73

TS4973EKIJT

-40, +85°C

FC + Back Coating

Tape & Reel

October 2004

Revision 2

1/19

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