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ESMT
ESMT


AD62557

USB Audio Controller


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AD62557 pdf
ESMT
AD62557
USB Audio Controller with Class-D Power Amplifier
& with Microphone/Line-in Interface
Features
z Compliant with USB Specification v1.1, and USB
2.0 full speed
z Compliant with USB 3.0 super speed operation
z Embedded stereo ADC with Microphone Boost
z Embedded Power-On-Reset circuit
z Embedded high efficiency, high performance
Class-D stereo amplifier
z Support I2S input (master and slave mode) and
I2S output interface (master mode)
z Support sampling frequency 44.1/48KHz for
playback and recording
z Pin to set recording source from internal ADC or
external ADC
z Pin to set speaker mode or I2S output mode
z Support Microphone and line-in function switching
z Support volume/mute control with external button
z LED indicator function for playback, mute and
recording mute
z Support 3D surround sound
z Support Microphone bias
z Support Digital microphone interface for recording
z Power Clipping function for speaker protection
z External EEPROM interface for vendor specific
and hardware configuration via I2C
z I2S input port allows AD62557 to receive ESMT’s
high performance ADC(i.e. AD12250)
z I2S output port allows AD62557 to control ESMT’s
high performance audio devices (i.e.
AD82586/AD82581)
z PWM output port to drive PWM Class-D audio
device (i.e. AD9258)
z Loudspeaker PSNR & DR (A-weighting, I2S input)
86dB (PSNR), 88dB (DR) with bead filter
z Loudspeaker output power with external power
2.1W x2CH into 4@10% THD+N
1.4W x2CH into 8@10% THD+N
z Efficiency with bead filter
75% for 8load @ Po = 1.4W x 2CH
70% for 4load @ Po = 2.1W x 2CH
z Built-in 5V to 3.3V regulator for internal device
operation
z Anti-pop design
z Over-temperature protection
z Under-voltage shutdown
z Short-circuit detection
z Single 12 MHz Crystal Input
z 3.3V operation I/O
z Supports Windows Me/2000/XP/Vista/7/8, Linux
and MacOS
z Integration circuit quality meet Win7 and Win8
Hardware Logo requirement
z 48-pin E-LQFP Pb-free package
Description
AD62557 is a highly integrated USB single
chip for Stereo/Mono speaker. Many useful features
are prog rammable with p ins or I 2C co ntrol. Whe n
using the power supplied from the USB port (USB
3.0), AD6 2557 ca n drive a p air of up to 2.1W into
4ohm speakers du e to the built-i n, hi gh ef ficiency
and hig h p erformance Class-D amplifiers. T he
device also has an I2S input port and I2S output port.
The I 2S input port allo ws oth er ex ternal a udio
sources to use the Cla ss-D amplifie r to share the
speakers. Th e I 2S output port allows other high
performance audio device (i.e. AD82586/AD82581).
Elite Semiconductor Memory Technology Inc.
Publication Date: Oct. 2013
Revision: 0.1
1/33
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AD62557 pdf
ESMT
Functional Block Diagram
AD62557
Elite Semiconductor Memory Technology Inc.
Publication Date: Oct. 2013
Revision: 0.1
2/33



Part Number AD62557
Description USB Audio Controller
Maker ESMT - ESMT
Total Page 3 Pages
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