ESMT
Features
z Compliant with USB S pecification v1.1, and USB 2.0 full speed z Support I2S input and I2S output interf...
ESMT
Features
z Compliant with USB S pecification v1.1, and USB 2.0 full speed z Support I2S input and I2S output interface of master mode Sampling frequencies(Fs):48kHz z Support recording function 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 12 MHz Crystal Input z 32-pin LQFP(Pb free)
AD62551A
USB controller with external Amplifier and Recording function
Description
AD62551A is a USB audi o controlle r with I 2S interface an d sup ports recording fu nction. The device also has an I2S input port and I2S output port. The I 2S outp ut port all ows othe r hi gh performance audio devi ce (i.e. AD8356A/AD8 256A) to be controlled by AD62551A.
Functional Block Diagram
Elite Semiconductor Memory Technology Inc.
Publication Date: Apr. 2007 Revision: 1.2 1/10
http://www.Datasheet4U.com
ESMT
Pin Assignment
AD62551A
Pin Description
Pin 1 MSDA 2 MSCL 3 4 SDA 5 LRCIN 6 BCLK 7 9 GND 10 NC 11 NC 12 VDD SDATAI 8 MCLK
PDO
Name
Type I/O O O O O O I O P NC NC P
2 2
Description I C’s SDA of Master mode I C’s SCL of master mode Power-down output (Note1) Serial audio output (Note1) L/R clock output(Fs) (Note1) BCLK output(64xFs) (Note1) Serial audio data input Master clock(256xFs) Ground No connection No connection 5V supply
voltage
Characteristics Schmitt trigger TTL input buffer
TAO
Sch...