PAM8803 datasheet(1/13 Pages) PAM

Part #	PAM8803

Description	3W Filterless Stereo Class-D Audio Amplifier with Digital Volume Control

PDF	13 Pages

Scroll/Zoom	100%

Manufacturer	PAM [Power Analog Micoelectronics]

Direct Link	http://www.poweranalog.com

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1 / 13 page

Key Features

Applications

3W Output at 10% THD with a 4

Load and

5V Power Supply

Filterless, Low Quiescent Current and Low

EMI

Low THD+N

64-step Digital Volume Control

Superior Low Noise

Low pop noise

Efficiency up to 90%

Short Circuit Protection

Thermal Shutdown

Few External Components to Save Space

and Cost

LCD Monitors/TV Projectors

Notebook Computers

Portable Speakers

Portable DVD Players, Game Machines

Cellular Phones/Speaker Phones

directly

It can extend the battery life,

ideal for portable applications.

Ω

n

General Description

The PAM8803 is a 3W, class-D audio amplifier

with 64-step digital volume control. It offers low

THD+N, allowing it to produce high-quality sound

reproduction. The new filterless architecture

allows the device to drive the speaker

,

without needing low-pass output filters which will

save 30% system cost and 75% PCB area.

With the same numbers of external components,

the efficiency of the PAM8803 is much better than

class-AB cousins.

The PAM8803 is available in a SSOP-24 package.

,

n

n Pb-Free Package

PAM8803

3W Filterless Stereo Class-D Audio Amplifier

with Digital Volume Control

1

www.poweranalog.com

0

10

20

30

40

50

60

70

80

90

100

0

0.5

1

1.5

2

2.5

3

Output Pow er(W)

RL=8Ω

RL=4Ω

Efficiency vs Output Power

Typical Application

VDD

-OUT_L

PGND

+OUT_L

PVDD

PGND PGND

+OUT_R

-OUT_R

MUTE

INL

INR

GND

SHDN

NCNCNCNC

VREF

DN

UP

RST

PAM8803

7

C1

1μF

VD D

C2 1μF

C3 10μF

C4

10μF

C5

1μF

PVDD

5

20

SP_L

SP_R

23

18

22

23

911 12 16

4

1

21

24

C6

0.47μF

C7

0.47μF

IN L

INR

C8 1μF

MUTE

SHDN

S1

S2

S3

6

19

15

13

14

10

817

FCC Class B Limit

Radiated Emissions

,

Power Analog Microelectronics Inc

MUTE

ON

SHDN

ON

12/2009 Rev 1.4

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