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Product Descriptions

The CM6648 is a USB 2.0 high-speed audio chip with high performance audio codec which is targeting high-end USB type-C headset, microphone and USB-to-3.5mm Jack audio device. It combines stereo DAC and mono ADC, audio interface I2S, control interface I2C, and embedded flash to provide a highly-integrated audio solution. The CM6648 also supports UAC3.0 LPM L1 and is equipped with a stereo low power cap-free Class-G headphone amplifier of 122dB SNR and 96dB THD+N performance, providing longer battery life and Hi-Fi listening experiences.
 

Product Benefits

• UBS 2.0 high-speed interface supports audio data up to 384K/32bits

• USB 2.0 High-Speed with UAC1.0/2.0 and 3.0 LPM L1

• High-performance audio codec of 122dB SNR Stereo DAC and 99dB SNR Mono ADC

• Embedded 8051 MCU with internal 256KB flash

• Ultra-low-power consumption: 19mA @idle / 35mA @active

Product Features

USB Compliance

• USB 2.0 Full-Speed and High-Speed

• USB Audio Class 1.0/2.0 and 3.0 LPM L1  

• Audio data supports up to 32-bits data length and 384K sampling rate

 
Audio I/O

• 2-Ch DAC 122dB SNR and 96 THD+N

• 1-Ch ADC 99dB SNR and 95 THD+N

• EQ 12 bands (6+6 bands) shared for playback or record path

• Audio Data

• Playback path: 44.1K~384KHz with 16/24/32-bits

• Recording path: 44.1K~192KHz with 16/24-bits

• Side-Tone path: 44.1K~192KHz with 16/24-bits

 
Control Interfaces

• Embedded 8051 MCU and 256KB flash memory

• Master I2C control interface

• Max. 4 GPIOs configurable, 2 of them can be set to PWM for LED dimming

 
General

• Support jack detection Wake-Up

• Support 3-pole and 4-pole headset with OMTP and CTIA jack detection

• Support Crystal-less and external crystal

• Ultra-low-power: 0.4mA @suspend, 26mA @active

• Package QFN-48 (6.5X5mm)

  Specifications

Actual product photos

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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