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Exact specifications should be obtained from the product data sheet.
CM6648 is a USB 2.0 high-speed audio chip with high performance audio codec which is targeting high-end USB type-C headset QFN48
CM6648 is a low power consumption and high audio quality chip
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
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UBS 2.0 high-speed interface supports audio data up to 384K/32bits
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USB 2.0 High-Speed with UAC1.0/2.0 and 3.0 LPM L1
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High-performance audio codec of 122dB SNR Stereo DAC and 99dB SNR Mono ADC
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Embedded 8051 MCU with internal 256KB flash
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Ultra-low-power consumption: 19mA @idle / 35mA @active
Product Features
USB Compliance
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USB 2.0 Full-Speed and High-Speed
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USB Audio Class 1.0/2.0 and 3.0 LPM L1
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Audio data supports up to 32-bits data length and 384K sampling rate
Audio I/O
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2-Ch DAC 122dB SNR and 96 THD+N
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1-Ch ADC 99dB SNR and 95 THD+N
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EQ 12 bands (6+6 bands) shared for playback or record path
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Audio Data
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Playback path: 44.1K~384KHz with 16/24/32-bits
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Recording path: 44.1K~192KHz with 16/24-bits
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Side-Tone path: 44.1K~192KHz with 16/24-bits
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Control Interfaces
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Embedded 8051 MCU and 256KB flash memory
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Master I2C control interface
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Max. 4 GPIOs configurable, 2 of them can be set to PWM for LED dimming
General
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Support jack detection Wake-Up
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Support 3-pole and 4-pole headset with OMTP and CTIA jack detection
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Support Crystal-less and external crystal
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Ultra-low-power: 0.4mA @suspend, 26mA @active
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Package QFN-48 (6.5X5mm)
Specifications
Attribute | Attribute value |
ANSM-Part# | ANSM-CM6648 |
Type: | Audio chip |
Manufactor | Cmedia |
DC | Standard |
Describe | NEW |
Supplier Device Packaging | QFN48 |
Package | REEL |
Type | USB Audio |
Sampling rate | 384K/32bit |
Rate | High Speed |
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