TS4962_10 datasheet(1/44 Pages) STMICROELECTRONICS

Part #	TS4962

Description	2.8 W filter-free mono class D audio power amplifier

PDF	44 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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January 2010

Doc ID 10968 Rev 8

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44

TS4962

2.8 W filter-free mono class D audio power amplifier

Features

■ Operating from VCC = 2.4 V to 5.5 V

■ Standby mode active low

■ Output power: 2.8 W into 4

Ω and 1.7 W into

8

Ω with 10% THD+N maximum and 5 V power

supply

■ Output power: 2.2 W at 5 V or 0.7 W at 3.0 V

into 4

Ω with 1% THD+N maximum

■ Output power: 1.4 W at 5 V or 0.5 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: 280 kHz

■ Low pop & click noise

■ Thermal shutdown protection

■ Available in DFN8 3 x 3 mm package

Applications

■ Cellular phones

■ PDAs

■ Notebook PCs

Description

The TS4962 is a differential class-D BTL power

amplifier. It can drive up to 2.2 W into a 4

Ω load

and 1.4 W into an 8

Ω load at 5 V. It achieves

outstanding efficiency (88% typ.) compared to

standard AB-class audio amps.

The gain of the device can be controlled via two

external gain setting resistors. Pop & click

reduction circuitry provides low on/off switch noise

while allowing the device to start within 5 ms. A

standby function (active low) enables the current

consumption to be reduced to 10 nA typical.

DFN8 3 x 3 mm

TS4962IQT pinout

1

2

3

4

8

7

6

5

EXPOSED

PAD

1

2

3

4

8

7

6

5

EXPOSED

PAD

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TS4962 Datasheet(PDF) 1 Page - STMicroelectronics

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