Datasheet > AD62550A

AD62550A

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
晶豪 - ESMT		放大器功率放大器
页数	文件大小	规格书
3页	244K
描述
Class-D Audio Power Amplifier with USB / I2S Interface

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AD62550A 数据手册

ESMT

AD62550A

Class-D Audio Power Amplifier with USB / I²S Interface

82dB (PSNR), 78dB (DR) with Chock filter

z Anti-pop design

Features

z Compliant with USB Specification v1.1, and USB

2.0 full speed

z Over-temperature protection

z Under-voltage shutdown

z Short-circuit detection

z 12 MHz Crystal Input

z 32-pin LQFP(Pb free)

z Embedded high efficiency, high performance class

D stereo amplifier

z Support I²S input and I²S output interface of

master mode

Sampling frequencies(Fs)：48kHz

z +6dB enhancement(Theater function)

z Support both bus-powered and self-powered

operation

z Supports Win Me//2000/XP and MacOS

z True plug-and-play application, no driver is

required for basic USB speaker application

z Support volume/mute control with external button

z Built-in 5V to 3.3V regulator for internal device

operation

Description

AD62550A is a single chip of Class-D audio

amplifier with USB/I²S interface. When using the

power supplied from the USB port, AD62550A can

drive a pair of up to 1W speakers due to the built-in,

high efficiency and high performance class D

amplifiers. The device also has an I²S input port and

I²S output port. The I²S input port allows other

external audio sources to use the class D amplifier

to share the speakers. The I²S output port allows

other high performance audio device (i.e.

AD8356A/AD8256A) to be controlled by AD62550A.

z Total efficiency

80% for 8Ω load @ -1dB 1kHz sine wave input

z Loudspeaker PSNR & DR (A-weighting)

80dB (PSNR), 78dB (DR) with Bead filter

Functional Block Diagram

Elite Semiconductor Memory Technology Inc.

Publication Date: Apr. 2007

Revision: 1.3

1/14

12 3

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