CM6533DH datasheet(6/60 Pages) CMEDIA

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CM6533,CM6533N,CM6533X1,CM6533DH

USB Audio Chip

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www.cmedia.com.tw

Rev.1.6

1 Description and Overview

The CM6533/CM6533N/CM6533X1/CM6533DH is a USB 2.0 audio chip built-in 8051 for flexible applications. With

integrated Tri-Colors PWM LED driver and two (2)-channel ADC/DAC and S/PDIF interface makes it suitable for

headset, docking, speaker and microphone applications. The internal 8051 can also be developed to a lot of different

applications, such as Microsoft™ Lync/Skype/VoIP device, Android Phone or Tablet/Slate docking device. The

CM6533/CM6533N/CM6533X1/CM6533DH is compatible with USB Audio Class 1.0 and USB 2.0 Full-Speed, thus it can

plug & play without any additional software installation on major operating systems. The internal DAC and ADC

support from 8 ~ 96 KHz sampling rate and 16/24 bits resolution. The hardware of CM6533, CM6533N, CM6533X1 and

CM6533DH are all the same and they only differ in firmware and software.

The CM6533/CM6533N/CM6533X1/CM6533DH integrates equalizer on both playback and recording paths to

compensate the frequency response of microphone and headphone.

The CM6533/CM6533N/CM6533X1/CM6533DH also integrates 256K Byte flash(Including 32KB F/W programming size)

and crystal but requires few passive components to make a finish product. Thus, it can save the total BOM cost and

PCB area can be smaller.

2 Features

2.1 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 and overview

2.2 Integrated 8051 Microprocessor

 Embedded 8051 micro-processor to handle the command/protocol transactions

 Embedded 256K Byte SPI Flash(Including 32KB F/W programming size)

 32K Byte RAM for firmware extension and plug-in

 HID interrupts/buttons/functions can be implemented via firmware codes

 Provides maximum hardware configured flexibility with firmware code upgrade

 VID/PID/Product String can program by firmware

2.3 Control Interface

 Master/Slave I2C control interface, bus speed supports 100 and 400kbit/s

 One 4-wire SPI mater/slave interface, bus speed supports from 150k to 12Mbit/s

 12 GPIO pins and firmware programmable

 JTAG debug interface

 GPIOs are configured as HID key and LED indicators

 Tri-Colors PWM LED Driver

2.4 General

 Crystal-less (embedded crystal function)

CM6533DH Datasheet(PDF) 6 Page - C-Media Electronics

CM6533DH Datasheet(HTML) 6 Page - C-Media Electronics

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