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VL630 - USB Audio Controller

Description

The VIA Lab’s VL630 is an USB Audio Codec for quality USB audio consumer applications. The VL630 conforms to USB 2.0 Specification and supports Full-Speed mode. It also supports USB Audio Class 1.0, and hence can enable driverless product. Featuring with SPI, I2C and S/PDIF interfaces, and the VL630’s stereo I/O supports most popular digital audio sampling resolutions.

The VL630 can support cap-less headphone amplifier, and the programmable High-Pass Filter works for low frequency noise suppression. The powerful DSP features on-chip empowers 3D like audio sensations. The parametric EQ with fully programmable coefficients is integrated to optimize audio output characteristics. The digital signal processing technology in VL630 allows it to deliver better sound quality and enriched audio features without extra driver/software efforts and installation. The 24-bit high signal-to-noise-ratio audio codec is designed to convert digital signal to enhanced analog sound with maximum clarity for the USB audio applications.

 

Block Diagram

Key Features

  • USB Interface
    - USB 2.0 Full-Speed compliant
    - USB Audio Device Class specification v1.0/2.0 compliant
    - USB Device Firmware Upgrade v1.1 compliant
    - USB HID volume, mute and GIO support
  • Integrated Audio Codec
    - 2-ch 16/24-bit ADC
    - Support 8kHz, 11kHz, 16kHz, 22kHz, 24kHz, 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, and 192kHz sampling rates
    - 2-ch 16/24-bit DAC
    - Support 8kHz, 11kHz, 16kHz, 22kHz, 24kHz, 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, and 192kHz sampling rates
    - ADC SNR 90dB and THD -80dB
    - DAC SNR 95dB and THD -85dB
  • S/PDIF Interface
    - One stereo S/PDIF output through integrated IEC60958 line driver
    - One stereo S/PDIF input through integrated IEC60958 receiver
  • Powerful Digital Mixing/DSP Features
    - 3D surround sound effect
    - 5-band programmable EQ for both DAC and ADC
    - Independent Dynamic Range Compression for both DAC and ADC
    - Digital side tone mixing
    - HP filter for low frequency noise suppression
  • Embedded Headphone Amplifier
  • I2C Interface
    - Support both slave mode and master mode
    - Support wait-status
    - Up to 400kb/s data transfer rate
  • Available in 48-pin LPFQ package