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AD62550 Schematic ( PDF Datasheet ) - Elite Semiconductor

Teilenummer AD62550
Beschreibung Class-D Audio Power Amplifier
Hersteller Elite Semiconductor
Logo Elite Semiconductor Logo 




Gesamt 3 Seiten
AD62550 Datasheet, Funktion
ESMT/EMP
Preliminary
AD62550
Class-D Audio Power Amplifier with USB/I2S Interface
Features
z True plug-and-play application, no driver is
required for basic USB speaker application
z Supports Windows Me/2000/XP/Vista/7 and Mac
OS
z Integration circuit quality meet Windows 7 and
Vista Hardware Logo requirement
z Compliant with USB Specification v1.1, and USB
2.0 full speed
z Can work directly with a USB3.0 port
z Embedded high efficiency, high performance
Class-D stereo amplifier
z Support both bus-powered and self-powered
operation
z Support I2S input and I2S output interface of
master mode
z +6dB Gain enhancement (Theater function)
z Sampling frequency 44.1/48KHz
z Support volume/mute control with external button
z LED indicator function
z Support 3D surround sound
z Built-in 5V to 3.3V regulator for internal device
operation
z Loudspeaker PSNR & DR (A-weighting)
91dB (PSNR), 92dB (DR) with Bead filter
z Anti-pop design
z Over-temperature protection
z Under-voltage shutdown
z Short-circuit detection
z External EEPROM interface for vendor specific
and hardware configuration
z Embedded Power-On-Reset circuit
z The I2S output port allows other high performance
audio device (i.e. AD8356/AD82581B)
z 12 MHz crystal input
z 3.3V operation with 5V tolerate I/O
z 32-pin LQFP Pb-free package
Description
AD62550 is a single chip of Class-D audio
amplifier with USB/I2S interface. When using the
power supplied from the USB port, AD62550 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.
AD8356/AD82581B).
Functional Block Diagram
Regulator
5V-> 3.3V
Power-On-
Reset
PLL1
XI
XO
XO
PLL0
ROM
USBDP
USBDM
USB
PHY
System Controller
I2S Rx
SDATAI
Audio Processing
I2S Tx
I2C
Class-D Amp.
LA/LB
RA/RB
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date: Jun. 2011
Revision: 0.2
1/20





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