C-MEDIA CM6120L 数字立体声扬声器解决方案

　　FEATURES

　　USB 2.0 Full Speed Compatible and USB IF Certification

　　USB audio device class specification v1.0 Compatible

　　USB bus powered 500mA,with No Need for External Power Supply

　　High performance 16-Bit stereo, 44.1 / 48 KHz sampling rate for audio playback

　　High efficiency high performance 2W x 2-CH Class D amplifier, differential output with no pop-noise.

　　S/PDIF output interface

　　Embedded Power-On-Reset block

　　Embedded 5V to 3.3V regulator for single 5V extemal power supply

　　Self power / Bus power selectable (by EEPROM)

　　Single 12MHz crystal input with embedded PLL

　　lsochronous transfer using adaptive synchronization with internal PLL

　　External 24c02 EEPROM interface for vendor specific VID / PID / Manufacture string/Product string / and Hardware configuration(volume for DAC / Line-inAA,etc.)

　　EEPROM Read / Write function via vendor command or HID command

　　USB HID digital volume control input for Vol_up / Vol_dn /Play_mute / Prev / Next / Play_pause / Play_stop buttons and remote wakeup with HID buttons

　　Playback with soft-mute function

　　Digital volume boost function

　　GPIO pin for application specific usage and LED Indicator Pin During Playback

　　Supports standard I2S output interface

　　Analog line-in w/ class D could work wo/USB(selector for USB/ line-in)

　　IR remote decoder function base on PTK6221(32 keys)

　　Optional USB Software Drive Xear 3D Sound Technology With Speaker Shifter and Virtual 7.1CH effects

　　Meet Vista Hardware Logo requirement

　　3.3V IO with 5V tolerance.

　　Compact 48 pin LQFP package in CM6120-XL.