LY8897

Rev. 1.1

2.7 Watt Audio Power Amplifier

5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan

TEL: 886-3-6668838

FAX: 886-3-6668836

1

®

FEATURES

2.7W Into 4Ω from 5.0V power supply at

THD+N = 10% (Typ.).

1.7W Into 8Ω from 5.0V power supply at

THD+N = 10% (Typ.)

2.0V~5.5V Power supply.

Low shutdown current.(TYP.=0.05uA)

Low quiescent current.(TYP.=3.0mA)

Thermal shutdown protection with auto recovery

feature.

Advanced power ON/OFF pop reduction.

Lead free and green package available.

(RoHS Compliant)

Space Saving Package

-- 8-pin EMSOP package. (with thermal pad)

-- 8-pin MSOP package. (without thermal pad)

APPLICATION

Boom Box.

Education, Toy.

MID,

Portable electronic devices.

Mobile Phones.

GENERAL DESCRIPTION

The LY8897 is a 2.7W audio power amplifier. It is

capable of driving 4Ω speaker load at a continuous

average output of 2.7W with less than 10%

distortion (THD+N) from a 5.0V power supply and

8Ω speaker load at a continuous average output of

1.7W with less than 10% distortion (THD+N) from a

5.0V power supply.

The LY8897 primarily designed for high quality

application in other portable communication device.

And the LY8897 audio amplifier features low power

consumption shutdown mode. It is achieved by

driving the shutdown pin with logic low.

And the LY8897 has an internal thermal shutdown

protection feature.

The

LY8897

audio

amplifier

was

designed

specifically to provide high quality output power with

a minimal amount of external components. The

LY8897 does not require output capacitors, and the

LY8897 is ideally suited for other low voltage

applications or portable electronic devices where

minimal

power

consumption

is

a

primary

requirement.

PIN CONFIGURATION

Power ON POP Noise

Power OFF POP Noise