VT1730

VT1730The VIA Envy VT1730 is an 8-channel, 32-bit/384 kHz audio controller specifically designed to achieve cinema-quality audio recording and playback in high fidelity USB and MIDI system applications. Whether it’s using the High-Speed bandwidth capacity of USB 2.0 (480 Mb/s) to simultaneously support audio streams from a guitar, bass, keyboard and microphone, or delivering true-to-life sound to multiple speakers in a home theatre set-up, the VIA Envy VT1730 offers outstanding audio performance and impressive application flexibility.

The highly integrated single chip USB audio solution is embedded with a number of crucial modules, including a standard 8032 MCU core, USB transceiver, five I2C masters and one slave controller, an I2S controller, a serial flash controller, four SPI ports, phase locked loop (PLLs) with internal oscillator, and a 3.3 V~2.0V regulator.

The VIA VT1730 also supports multi-channel PCM digital audio format up to 32-bit resolution and 384 kHz sample rate as well as multiple audio bit streams of up to 5 Input streams and 6 Output streams. Additionally, the controller is capable of connecting 8 Inputs and 8 Outputs simultaneously in selectable I2S or MSB-justified Digital Audio Interface. An S/PDIF interface with two stereo output ports and one stereo input port also supports up to a 24-bit resolution and 192 kHz sample rate.


Feature Highlights

  • USB Interface
    • USB 2.0 High-Speed (480 Mbps) Device Compliant
    • USB 2.0 Full-Speed (12 Mbps) Device Compliant
    • USB 2.0 High-Speed PHY Integrated
    • USB Audio Class v1.0/ v2.0 Device Compliant
    • USB Device Firmware Upgrade v1.1 Compliant
  • High Resolution, Multi-Channel PCM Audio Bit Streams
    • Up to 32-bit, 384kHz sample rate
    • Up to 5 Input Streams and 6 Output Streams
  • I2S Audio Interface
    • 8 I2S Input
    • 8 I2S Output
      • Mono/ 2-Ch
      • 16/20/24-bit/32-bit
      • 32 / 44.1 / 48 / 88.2 / 96 / 176.4 / 192 / 384 kHz
  • S/PDIF Interface
    • 2 Stereo SPDIF Output
    • 1 Stereo SPDIF Input
      • Mono / 2-Ch
      • 16 / 20 / 24-bit
      • SPIDIF In: 32 / 44.1 / 48 / 88.2 / 96 kHz
      • SPIDIF Out: 44.1 / 48 / 88.2 / 96 / 192 kHz
  • Blu-ray Disc™ Audio Content Protection
    • 32-bit/192kHz audio output delivering cinema-level audio experience
  • MIDI Interface
    • 3 MIDI In
    • 3 MIDI Out
    • Any MIDI port can be used as UART
  • Supports both DSD and PCM Output Formats.
    • (pin-shared with I2S and MIDI interface)

VT1730 Block Diagram

vt1730-31-blkdiagram

 

VIA Technologies, Inc.