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?Tensilica Hi-Fi EP,Single Core 310MHz

?2 Channel Stereo I2S Input/Output

?Digital Microphone Interface

?2 Channel DAC and 2 Channel ADC

?Xear?Acoustic Echo Cancellation HD(AEC HD)

?Xear?Noise Reduction(NR)

?Xear?Long Distance Recording(LDR)

?Xear?Dynamic Range Control(DRC)

?10-band EQ

?LQFP-48(9x9mm)

INTRODUCTION

CM7104 is a powerful 310MHz audio DSP with low power consumption.CM7104 DSP supports Cmedia Xear?Surround Headphone,Dynamic Bass and parametric 10 bands equalizer for gaming solutions.It integrates 768KByte internal memory,I2C,SPI and 2-pair 24bit/8kHz~192kHz I2S digital I/O interface.It also integrates high-quality audio codec for audio playback and recording.CM7104 is a high performance and low power consumption for gaming applications.

PRODUCT FEATURES

Architecture

Integrates 310MHz DSP and 768K Byte internal memory

Digital asynchronous sampling rate converter(ASRC)function

Support Sidetone generator

Parametric 10 bands equalizer(EQ)for playback path

Support JTAG debug interface

Integrates Internal PLL for clock input

Audio I/O

2-channel DAC outputs(Up to 192KHz sampling rates)

2-channel ADC inputs(Up to 192KHz sampling rates)

Two I2S/PCM/TDM digital interface(Up to 192KHz)

2 stereo digital microphone interface

Control Interfaces

I2C master/slave mode control interface

SPI control interface(Up to 28MHz clock rate)

1 GPIO pins

General

Industrial standard small footprint LQFP-48 green package

DSP Algorithm

Voice process

-Xear?Volear Environment Noise Cancellation(ENC)HD technology for dual omni-microphones

-Adjustable 20-40dB cancellation of environmental dynamic and stationary noises and other parameters

-Supports a mic auto-calibration mechanism,allowing dual-mic sensitivity and mismatching in production

-Allows a wide placement distance range between two microphones(8-14 cm recommended)

-Supports mic-in auto-gain control(AGC)for ADC recording quality when the ENC HD function is on

-Acoustic Echo Cancellation(AEC)HD and Long Distance Recording(LDR)processing mode for speakerphones

-Mono-mic Noise Reduction(NR)HD processing mode for camcorder/voice recorders

-Up to 32KHz high-fidelity voice processing

Audio process

-Xear?surround headphone

-Xear?sound expander

-Xear?Sonic

*Dynamic bass

*Audio brilliant

*Voice clarity

*Smart volume

*Parameter Equalizer

More detail information for Dolby®and DTS®functions,please contact with C-Media sales.

BLOCK DIAGRAM

Please contact Cmedia sales for more detail information.