Datasheet > CM6535

CM6535

更新时间： 2022-02-26 14:41:57

品牌	Logo	应用领域
骅讯 - CMEDIA		/
页数	文件大小	规格书
57页	1220K
描述
USB 2.0 full-speed compliant

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CM6535 数据手册

CM6535

USB Audio Chip

DESCRIPTION

FEATURES

The CM6535 is a USB 2.0 audio chip builds in 8051 for

flexible applications with Tri-Colors PWM LED driver,

two (2)-channel ADC/DAC and S/PDIF and I2S

interface makes it suitable for headset, notebook/

 USB 2.0 full-speed compliant

 USB Audio Class 1.0 compliant

 USB Human Interface Device (HID) Class 1.1 compliant

 Two (2)-channel DAC & I2S for audio output interface

 Two (2)-channel ADC & I2S for audio input interface

 Supports Digital Microphone Interface

mobile

docking,

speaker

and

microphone

applications. The internal 8051 can also be developed

to different applications, such as Microsoft™ Lync/

Skype/VoIP device and Android Phone or Tablet/Slate

docking device. The CM6535 is compatible with USB

Audio Class 1.0 and USB 2.0 full-speed, thus it can

plug and play without additional software installation

on the major operation systems. The internal

DAC/ADC and I2S support 8~96 KHz sampling rate and

16/24bits resolution.

 Built-in S/PDIF Input/output transmitter

 Built-in Equalizer on both playback and recording paths

 Built-in AGC on recording path

 Supports dual tone generator

The CM6535 integrates the equalizer on both playback

and recording paths to compensate the frequency

response of microphones and headphones.

 Supports USB suspend/resume/reset functions

 Supports control, interrupt, bulk, and isochronous data

transfers

The CM6535 also integrates 512K Byte flash (Including

32KB F/W programming size) and requires few passive

components to make a finish product. Thus, it can

save the total BOM cost and PCB area can be smaller.

 Embedded 1T 8051 with 32K Byte SRAM and 512K Byte

flash(Including 32K Byte F/W programming size)

 Supports OMTP and CTIA auto switch on a 4-pole jack

 Integrated Tri-Colors PWM LED driver

 Master/Slave H/W I2C/SPI/UART control interface for

external audio devices or FLASH access

 Built-in 30mW @ 32 ohm load headphone amplifier

 On chip watchdog timer

BLOCK DIAGRAM

SPDIF In

2 Channel I2S In

USB

Interface

-18~45dB

Microphone In

-30~33dB

-16~12dB

AGC

ADC

Line In

32K

SRAM

-30~33dB

External

12M Crystal

5-Band EQ

+12dB

-15~32dB

-30~12dB

MCU with 512K FLASH

-62~0dB

-44~0dB

4K ROM

DAC

Speaker/ Heaphone

5-Band EQ

2 Channel I2S Out

SPDIF Out

GPIO x 12

PWM LED X 3

Uart, I2C, SPI

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