參數(shù)資料
型號(hào): AD6255A
廠商: Elite Semiconductor Memory Technology Inc.
英文描述: Class-D Audio Power Amplifier with USB / I2S Interface and Recording function
中文描述: D類音頻功率放大器具有USB / I2S接口和錄音功能
文件頁(yè)數(shù): 1/3頁(yè)
文件大?。?/td> 240K
代理商: AD6255A
ES MT
Class-D Audio Power Amplifier with USB / I
2
S Interface and
Recording function
Features
z
Compliant with USB Specification v1.1, and USB
2.0 full speed
z
Embedded high efficiency, high performance class
D stereo amplifier
z
Support I
2
S input and I
2
S output interface of
master mode
Sampling frequencies(Fs)
48kHz
z
+6dB enhancement(Theater function)
z
Support recording 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
z
Total efficiency
80% for 8
load @ -1dB 1kHz sine wave input
z
Loudspeaker PSNR & DR (A-weighting)
80dB (PSNR), 78dB (DR) with Bead filter
Functional Block Diagram
AD6255A
Elite Semiconductor Memory Technology Inc.
Publication Date: Apr. 2007
Revision: 1.3
1/15
82dB (PSNR), 78dB (DR) with Chock filter
z
Anti-pop design
z
Over-temperature protection
z
Under-voltage shutdown
z
Short-circuit detection
z
12 MHz Crystal Input
z
32-pin LQFP(Pb free)
Description
AD6255A is a single chip of Class-D audio
amplifier with USB/I
2
S interface and supports
recording function. When using the power supplied
from the USB port, AD6255A 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 I
2
S input port and I
2
S output port.
The I
2
S input port allows other external audio
sources to use the class D amplifier to share the
speakers. The I
2
S output port allows other high
performance audio device (i.e. AD8356A/AD8256A)
to be controlled by AD6255A.
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