VT1618中文资料音频多媒体数字信号编码器数据手册VIA规格书

描述 Description

The VIA Vinyl VT1618 Audio Codec is a high-end audio codec that features up to 20-bit resolutions, 96kHZ sampling rates, 8-channel outputs, and also complies with AC’97 revision 2.3. The VIA Vinyl VT1618 supports DualMax™ hardware down-mixing allowing end users to enjoy 6-channel audio with 2-channel or 4-channel speakers. To maximize recording quality for home studio applications the VIA VT1618 integrates 20-bit, Sigma-Delta ADCs for stereo recording and white noise removal. The analog mixer circuitry integrates a stereo enhancement to provide a pleasing 3D surround sound effect for stereo media. A high-quality headphone amplifier is integrated into the VIA VT1618, reducing BOM cost and design time.

To make set-up as easy as possible, the VIA VT1618 provides innovative Sixth-Sense™ jack detection enabling maximum flexibility in configuring customized audio set-ups. For the user this will mean a simple process of connecting an audio device (recording or playback) to any jack, and then the VIA VT1618 will automatically detect the device. The user can then configure the correct I/O to the jack in use. This maximizes ease of use for the user, and reduces help requests. The VIA VT1618 also integrates Silent Slide-Bar which elimates distortion when adjusting volume, and Clean-ON technology which eliminates annoying “pops” when the PC is powered on/off.

To fill out the solution VIA offers a stylish easy to use driver with the VIA VT1618 that enables full access to all of its wide range of features. The driver also includes full 3D Immerzio gaming support through Sensaura technology, to enable a new level of gaming support in an AC’97 solution.

Target markets for the VIA VT1618 include Audio on Motherboard solutions in combination with chipset South Bridges or in combination with VIA’s Envy24PT audio controller. The VIA VT1618 also has broad appeal in the soundcard market, especially when combined with VIA’s leading line of Envy24 audio controllers.

特性 Features

Leading Audio Quality
» Supports sampling rates up to 96KHz
» Independent 20-bit ADC and 20-bit DAC
» SNR (Signal to Noise Ratio) exceeds 95dB
» Built-in 1HZ resolution VSR converter

Input/Output
» Supports 7.1ch outputs
» Hardware down-mixes 6-channel to 2-channel or 4-channel
» Center and LFE channel swapping
» Alternative Line-Level outputs at surround outputs
» 96KHz S/PDIF output
» Direct CD input to S/PDIF output

Architecture
» Flexible Jack-detect design
» Built-in accurate PLL for saving an external crystal
» Fully compliant with AC’97 Revision 2.3

Easy System Integration
» 4-bit 3D depth control
» Supports EAPD control
» Supports GPIO pins control
» Selectable clock sources

Other Features
» Integrates headphone amplifier with mute
» Stereo recording
» Dual microphones supporting Karaoke with mixing

Package
» 48-Pin LQFP Package

Power
» Low power consumption mode
» 3.3V or 5V analog, 3.3V digital power supply