TS4962 datasheet(1/46 Pages) STMICROELECTRONICS

部件名	TS4962

功能描述	2.8W filter-free mono class D audio power amplifier

PDF	46 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 46 page

January 2007

Rev 7

1/46

1

TS4962

2.8W filter-free mono class D audio power amplifier

Features

■ Operating from VCC=2.4V to 5.5V

■ Standby mode active low

■ Output power: 2.8W into 4

Ω and 1.7W into 8Ω

with 10% THD+N max and 5V power supply

■ Output power: 2.2W @5V or 0.7W @ 3.0V into

4

Ω with 1% THD+N max.

■ Output power: 1.4W @5V or 0.5W @ 3.0V into

8

Ω with 1% THD+N max.

■ Adjustable gain via external resistors

■ Low current consumption 2mA @ 3V

■ Efficiency: 88% typ.

■ Signal to noise ratio: 85dB typ.

■ PSRR: 63dB typ. @217Hz with 6dB gain

■ PWM base frequency: 280kHz

■ Low pop & click noise

■ Thermal shutdown protection

■ Available in DFN8 3X3 mm package

Description

The TS4962 is a differential class-D BTL power

amplifier. It is able to drive up to 2.2W into a 4

Ω

load and 1.4W into a 8

Ω load at 5V. 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 5ms. A

standby function (active low) allows the reduction

of current consumption to 10nA typ.

Applications

■ Cellular phone

■ PDA

■ Notebook PC

DFN8 3x3 mm

TS4962IQT - Pinout

www.st.com

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