TS4961T datasheet(1/49 Pages) STMICROELECTRONICS

部品番号	TS4961T

部品情報	Mono class D audio power amplifier with dedicated analog switch

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メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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September 2008

Rev 1

1/49

49

TS4961T

Mono class D audio power amplifier with dedicated analog switch

Features

■ Wide operating voltage range from

VCC = 2.4V to 4.3V

■ Audio amplifier standby mode active low

■ Output power: 1.6 W at 4.2 V or 0.75 W at

3.0 V into 4

Ω with 1% THD+N maximum

■ Output power: 0.95 W at 4.2 V or 0.45 W at

3.0 V into 8

Ω with 1% THD+N maximum

■ Adjustable gain via external resistors

■ Low current consumption 2 mA at 3 V

■ Efficiency: 88% typical

■ Signal-to-noise ratio: 85 dB typical

■ PSRR: 63 dB typical at 217 Hz with 6 dB gain

■ PWM base frequency: 250 kHz

■ Low pop and click noise

■ Dual Power SPST with separated control

■ Ultra-high off-isolation on analog switch:

-80 dB typical from 20 Hz to 20 kHz

Applications

■ Cellular telephones

■ PDAs

■ Notebook PCs

Description

The TS4961T is a smart combination of one

mono class D audio power amplifier and a

high-speed CMOS low-voltage dual power analog

SPST.

One of the key functions of this device is the

switch mode of the various audio signals coming

from the codec or baseband through the

loudspeaker. It can drive up to 1.6 W into a 4

Ω

load and 0.95 W into an 8

Ω load. It achieves an

outstanding efficiency of up to 88% typical.

The audio amplifying gain of the device can be

controlled via two external gain-setting resistors. It

is designed to operate from 2.4 to 4.3 V, making

this device ideal for portable applications.

QFN 16 3 x 3 mm

TS4961TIQT pinout

www.st.com

Obsolete

Product(s)

- Obsolete

Product(s)

同様の部品番号 - TS4961T

メーカー	部品番号	データシート	部品情報
STMicroelectronics	TS4962	1Mb / 22P	3W Filter-free Class D Audio Power Amplifier Feb-2005
	TS4962	606Kb / 46P	2.8W filter-free mono class D audio power amplifier 10-Jan-2007
	TS4962	997Kb / 44P	2.8 W filter-free mono class D audio power amplifier 17-Mar-2020
	TS4962EIJT	1Mb / 22P	3W Filter-free Class D Audio Power Amplifier Feb-2005
	TS4962EKIJT	1Mb / 22P	3W Filter-free Class D Audio Power Amplifier Feb-2005

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