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Product Descriptions

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

  Specifications

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