The CM6631 is a high-performance USB 2.0 high-speed audio processor manufactured by C-Media Electronics. It is designed to provide a high-fidelity audio interface between a USB host and audio output devices, supporting various audio formats and sampling rates.

Applications:

• USB audio interfaces
• USB DACs (Digital-to-Analog Converters)
• USB sound cards
• Headphone amplifiers
• Audio streaming devices
• Gaming headsets

Features:

• USB 2.0 high-speed compliant
• Supports up to 24-bit/192kHz audio resolution
• Integrated S/PDIF transmitter
• I2S (Inter-IC Sound) interface for audio output
• Supports various audio formats (PCM, Dolby Digital, DTS)
• Built-in headphone amplifier
• Low power consumption

Benefits:

• High-fidelity audio playback
• Versatile audio connectivity options
• Seamless integration with USB hosts
• Reduced power consumption for portable devices
• Simplified design with integrated features
• Excellent sound quality for audiophile applications
• Broad compatibility with different audio standards

Additional Details:

The CM6631 is designed to handle high-resolution audio data transmitted over a USB 2.0 connection. It supports audio resolutions up to 24-bit/192kHz, providing a high-fidelity audio experience. The integrated S/PDIF transmitter allows for digital audio output to external devices. The I2S interface simplifies the connection to DACs and other audio processing components. The built-in headphone amplifier provides sufficient power for driving headphones directly. The device complies with USB 2.0 high-speed specifications, ensuring efficient data transfer. Specific parameters such as the THD+N (Total Harmonic Distortion plus Noise) ratio, SNR (Signal-to-Noise Ratio), and power consumption are available in the product datasheet from C-Media Electronics.

The CM6631 is a popular choice for USB audio interface applications, offering a combination of high performance, versatile features, and low power consumption. Its ability to support high-resolution audio and various audio formats makes it suitable for audiophile and professional audio applications.