CM6206 Datasheet, PDF (4/35 Pages) C-Media Electronics – High Integrated USB Audio I/O Controller

CM6206
High Integrated USB Audio I/O Controller
1 Description and Overview
CM6206 is a highly integrated single chip USB audio solution. All essential analog modules are embedded in
CM6206, including 8CH DAC and earphone buffer, 2CH ADC, microphone gain, PLL, regulator, and USB
transceiver. It is very suitable for high end USB external audio box, USB multi-channel headphone or USB
audio interface multi-channel speaker set application.
Many features are programmable with external EEPROM and MCU interface. In addition,
MCU/EEPROM/GPIO control can easily via HID software interface. Better yet, CM6206 support stereo MIC,
phone jack sense, S/PDIF I/O 48 KHz sampling rate. Moreover, unique patent driver can support world’s
first SPEAKER SHIFTER, Karaoke and Dolby AC-3 real-time encoder functions.
2 Features
 USB spec. 2.0 full speed compliant
 USB audio device class spec. 1.0 and USB HID class spec. 1.1 compliant
 IEC60958 spec. compliant (consumer format S/PDIF input and output with loop-back support)
 SCMS (Serial Copy Management System) compliant
 Dolby® digital audio streaming via S/PDIF out S/PDIF output interface
 USB remote wake-up support
 8 channel DAC output with 16 bit resolution
 3.1 Vpp (1.1 Vrms) biased at 2.25V output swing
 Volume control and mute function
 Earphone buffer
 2X interpolator for digital playback data to improve quality
 2 channel ADC input with 16 bit resolution
 3.2 Vpp (or 4.0 Vpp programmed by vendor driver) biased at 2.25V input swing
 Volume control and mute function
 Additional headphone output with selectable source and phone jack sense
 Isochronous transfer using adaptive synchronization with internal PLL
 Stereo MIC support with 33dB maximum capability
 Recording source select from S/PDIF, MIC, Line-in and summation of MIC, Line-in and front channel
 MIC, Line-in monitor from front channel (all channels optional) with volume control and mute function
 Master volume control by default; per-channel volume control by C-Media driver
 Playback with soft-mute function
 Support 48 / 44.1 KHz sampling rate for both playback and recording
 MCU support with two-wire serial interface
 Serial EEPROM support for customized VID/PID
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