CM6500B Datasheet, PDF (5/36 Pages) C-Media Electronics – USB Audio Sound Chip

CM6500 / CM6500B
USB Audio Sound Chip
1 Description and Overview
CM6500 / CM6500B is a USB 2.0 audio chip builds in 8051 for flexible applications. With internal 2-channel ADC
and DAC 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 48 K/44.1KHz sampling rate and 16 bit resolution.
2 Features
USB Compliance
 USB 2.0 full-speed compliant
 USB Audio Class 1.0 compliant
 USB Human Interface Device (HID) Class 1.1 compliant
 Supports USB suspend/resume/reset functions
 Supports control, interrupt, bulk, and isochronous data transfers
Audio I/O
 Playback Streams:
 Stereo DAC
 Sample Rates: 8K/11.025K/16K/22.05K/32K/44.1K/48K
 Supports Bit Length: 16 bit
 Builds in S/PDIF transmitter
 Sample Rates: 44.1K/48K
 Supports Bit Length: 16 bits
 Recording Streams:
 Stereo ADC
 Sample Rates: 8K/11.025K/16K/22.05K/32K/44.1K/48K
 Supports Bit Length: 16 bits
Integrated 8051 Micro-processor
 Embedded 8051 micro-processor to handle the comment/protocol transactions
 Connects to an external EEPROM memory for firmware codes
 HID interrupts can be implemented via firmware codes
 Provides maximum HW configuration flexibility with firmware code upgrade
 VID/PID/Product String can be customized via firmware code programming
www.cmedia.com.tw
Copyright © C-Media Electronics Inc.
Rev. 1.02 ︱ Page 5/16