CM109 Просмотр технического описания (PDF) - C-Media Electronics

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CM109

High Integration / Low Cost USB Audio Controller for PC Internet Phone

C-Media Electronics 

CM109

High Integration / Low Cost USB Audio Controller

for PC Internet Phone

z For Speaker Mode, USB audio function topology has 1 Input Terminal, 1 Output

Terminal, and 1 Feature Unit

z Support one Control Endpoint, one Isochroous out Endpoint, one Isochroous in

Endpoint, and one Interrupt in Endpoint

z Alternate zero bandwidth setting for releasing playback bandwidth on USB Bus

when this device is inactive

z Volume up, volume down, and playback mute support USB HID for Host Control

Synchronization

z Record Mute Pin with LED Indicator for Record Mute Status

z External EEPROM Interface for Vendor Specific USB VID, PID, and Serial

Number

z Supports AES/EBU, IEC60958, S/PDIF Consumer Formats for Stereo PCM

Data at S/PDIF Output

z 8 GPIO Pins with Read/Write via HID

z Embedded Buzzer Function controlled by Register

z Support I2C Interface for External MCU Integrated

z Jumper Pin for Output Voltage Swing (3.5V or 2.5V)

z Jumper Pin for Power Mode Setting

z Isochroous transfer uses Adaptive Mode with Internal PLL for Synchronization

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

z Soft Mute Function

z Embedded High Performance 16 bit audio DAC with Earphone Phone Buffer

z Host side data loss noise reduction function

z Embedded 16 bit ADC input with Microphone Boost

z Embedded power on Reset Block

z Embedded 5V to 3.3V regulator for single External 5V Operation

z Compatible with Win98 SE / Win ME / Win 2000 / Win XP and Mac OS9 / OS X

without Additional Driver

z 48 Pin LQFP Package

z Support Hardware SDK tool for third-party software or soft-phone development

Date: 08/Sep/2005

-5-

Version: 1.3a

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