Datasheet > PAM8303D

PAM8303D

更新时间： 2025-09-01 05:59:35

品牌	Logo	应用领域
PAM		放大器功率放大器
页数	文件大小	规格书
17页	273K
描述
Ultra Low EMI, 3W Filterless Mono Class-D Audio Power Amplifier

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PAM8303D 数据手册

PAM8303D

Ultra Low EMI, 3W Filterless

Mono Class-D Audio Power Amplifier

Key Features

General Description

Ultra Low EMI, -20dB Better Than FCC

Class-B @ 300MHz

High Efficiency up to 90% @1W with an 8Ω

Speaker

Shutdown Current <1μA

3W@10% THD Output with a 4Ω Load at 5V

Supply

Demanding Few External Components

Superior Low Noise without Input

Supply Voltage from 2.8V to 5.5 V

Short Circuit Protection

The PAM8303D is a 3W mono filterless class-D

amplifier with high PSRR and differential input

that eliminate noise and RF rectification.

Features like 90% efficiency and small PCB area

make the PAM8303D class-D amplifier ideal for

cellular handsets. The filterless architecture

requires no external output filter, fewer external

components, less PCB area and lower system

costs, and simplifies application design.

Thermal Shutdown

The PAM8303D features short circuit protection

and thermal shutdown.

Available in Space Saving Packages:

1.45mmx1.45mm WCSP9, MSOP-8, DFN 3x3

Pb-Free Package

The PAM8303D is available in 9-ball WCSP,

MSOP-8 and DFN 3x3 8-pin packages.

Applications

Level (dBuV/m)

FCC

Class B

Cellular Phones/Smart Phones

MP4/MP3

GPS

Digital Photo Frame

Electronic Dictionary

Portable Game Machines

30.00 100.00

200.00

300.00

400.00

500.00

(MHz)

600.00

700.00

800.00

900.00

1000.00

EMI vs Frequency

Typical Application Circuit

Power in

to PVDD pin

to VDD pin

10ꢀF

1ꢀF

VDD

PVDD

VDD

PVDD

IN-

OUT-

Single-ended

Input

Differential

Input

PAM8303D

IN+

OUT+

OFF

GND

Power Analog Microelectronics,Inc

09/2008 Rev 1.4

www.poweranalog.com

12 3 4 5 6 7...17

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