科瑞芯电子供应 CM119B 骅讯USB音频单芯片

　　Features

　　Compliant with USB 2.0 Full Speed Operation

　　Compliant with USB Audio Device Class Specification v1.0

　　Supports USB Suspend/Resume Mode and Remote Wakeup with Volume Control pins

　　On-chip oscillator that provides reference sources for PLL and embedded USB transceiver

　　Jumper pin for Headset Mode (Playback +Recording) and Speaker /Headphone Mode(Playback Only)

　　Jumper pin for Operation System Mixer Unit Enable/Disable under Headset Mode

　　Jumper pin for Power Mode setting

　　USB audio function topology has 2 Input Terminals,2 Output Terminals,1 Mixer Unit, 1 Selector Unit, and 3

　　Feature Units (Headset mode)

　　USB audio function topology has 1 Input Terminal,1Output Terminal, and 1 Feature Unit (Speaker Mode)

　　Anti-pop noise design for device plugged and vice-versa, while A-A path is off

　　Supports one Control Endpoint,one lsochronous out Endpoint, one lsochronous in Endpoint, and one Interrupt in Endpoint

　　Alternate zero bandwidth setting for releasing playback bandwidth on USB Bus when the device is inactive

　　Includes volume up, volume down, and playback mute support USB HID for Host Control Synchronization

　　Includes Record Mute Pin with LED Indicator for Record Mute Status

　　Includes external EEPROM Interface for Vendor Specific USB VID,PID,Product String,Manufacture String,and max/min/initial volumes

　　Supports AES/EBU,IEC60958,S/PDIF Consumer Formats for Stereo PCM Data at S/PDIF Output

　　Supports 12C Interface for External MCU Integrated

　　Includes lsochronous transfer that uses Adaptive Mode with Internal PLL for Synchronization

　　48K/44.1KHz Sampling Rate for both Playback and Recording

　　Soft Mute Function

　　Embedded16bit audio DAC with Earphone Phone Buffer

　　Embedded16bit ADC input with Microphone Boost

　　Embedded power on Reset Block

　　USB Audio Single Chip

　　Embedded 5V to 3.6V/3.3V/1.8V regulators for single external 5V power

　　Industrial standard 48-pin LQFP Package

　　Optional Hardware SDK tool for third-party software