TS4994FC datasheet(1/35 Pages) STMICROELECTRONICS

部件名	TS4994FC

功能描述	1.2 W differential input/output audio power amplifier with selectable standby

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 35 page

December 2006

Rev 2

1/35

35

TS4994FC

1.2 W differential input/output audio power amplifier

with selectable standby

Features

■ Differential inputs

■ Near-zero pop & click

■ 100dB PSRR @ 217Hz with grounded inputs

■ Operating range from VCC = 2.5V to 5.5V

■ 1.2W rail-to-rail output power @ VCC =5V,

THD = 1%, F = 1kHz, with 8

Ωload

■ 90dB CMRR @ 217Hz

■ Ultra-low consumption in standby mode (10nA)

■ Selectable standby mode (active low or active

high)

■ Ultra fast startup time: 15ms typ.

■ Available in 9-bump flip-chip (300mm bump

diameter)

■ Lead-free package

Description

The TS4994 is an audio power amplifier capable

of delivering 1W of continuous RMS output power

into an 8

Ωload @ 5V. Due to its differential inputs,

it exhibits outstanding noise immunity.

An external standby mode control reduces the

supply current to less than 10nA. An STBY

MODE pin allows the standby to be active HIGH

or LOW. An internal thermal shutdown protection

is also provided, making the device capable of

sustaining short-circuits.

The device is equipped with common mode

feedback circuitry allowing outputs to be always

biased at VCC/2 regardless of the input common

mode voltage.

The TS4994 is designed for high quality audio

applications such as mobile phones and requires

few external components.

Applications

■ Mobile phones (cellular / cordless)

■ Laptop / notebook computers

■ PDAs

■ Portable audio devices

Order codes

TS4994EIJT - Flip-chip (9 bumps)

V

IN+

V

O-

V

CC

V

IN-

V

O+

Gnd

1

2

3

76

5

4

8

Bypass

Stdby

Stdby Mode

9

V

IN+

V

O-

V

CC

V

IN-

V

O+

Gnd

1

2

3

76

5

4

8

Bypass

Stdby

Stdby Mode

9

Part number

Temperature range

Package

Packaging

Marking

TS4994EIKJT

-40°C, +85°C

FC9 with back

coating

Tape & reel

A94

TS4994EIJT

Lead free flip-chip9

A94

www.st.com

类似零件编号 - TS4994FC

制造商	部件名	数据表	功能描述
STMicroelectronics	TS4994	762Kb / 31P	1W Differential Input/Output Audio Power Amplifier with Selectable Standby
Texas Instruments	TS4994	485Kb / 35P	1W differential input/output audio power amplifier with selectable standby
STMicroelectronics	TS4994	479Kb / 35P	1W differential input/output audio power amplifier with selectable standby December 2006 Rev 6
STMicroelectronics	TS4994IQT	762Kb / 31P	1W Differential Input/Output Audio Power Amplifier with Selectable Standby
Texas Instruments	TS4994IQT	485Kb / 35P	1W differential input/output audio power amplifier with selectable standby

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