CM6500B Datasheet, PDF (1/36 Pages) C-Media Electronics – USB Audio Sound Chip

CM6500 / CM6500B
USB Audio Sound Chip
DESCRIPTION
CM6500 / CM6500B are a USB 2.0 audio chip builds
in 8051 for flexible applications. With internal
2-channel ADC and DAC and S/PDIF interface
makes it suits for Headset, Docking, Speaker and
Mic applications. The internal 8051 can be also
developed to a lot of different applications, such as
Lync device, iDevice docking or even Android
Phone or Tablet/Slate docking device.
CM6500 / CM6500B is compatible with USB audio
Class 1.0, thus it can plug & play without additional
software installation on the major operation
systems. The internal DAC/ADC and S/PDIF out
interface support 48K/44.1KHz sampling rate and
16bit resolution.
FEATURES
 USB 2.0 full-speed compliant
 USB Audio Class 1.0 compliant
 USB Human Interface Device (HID) Class 1.1
compliant
 2 channel DAC for audio output interface
 2 channel ADC for audio input interface
 Build in 48K/44.1KHz and 16bit S/PDIF
transmitter
 Build in AGC on recording path
 Support USB suspend/resume/reset functions
 Support control, interrupt, bulk, and isochronous
data transfers
 Embedded 1T 8051
 Master I2C control interface for external audio
devices or EEPROM access
 14 GPIO pins
BLOCK DIAGRAM
USB
Interface
Crystal
EEPROM
AGC
SRAM
ROM
MCU
ADC
DAC
Microphone In
Speaker/
Heaphone
SPDIF Out
GPIO x 14
Uart, I2C
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