ALC268硬件规格.

听说,ALC268不是好芯片?以为是不支持192什么的今天在realtek网站上看到介绍说是支持的,规格相当不错啊?笔记本用的.有没人知道哪里不好,

Hardware Features 95dB SNR DACs meet Windows Vista Premium requirement
    * 90dB SNR ADCs meet Windows Vista Premium requirement
    * Two stereo DACs support 16/20/24-bit PCM format for stereo audio playback
    * Two stereo ADCs support 16/20-bit PCM format for two stereo independent sound inputs
    * All DACs supports 44.1k/48K/96k/192kHz sample rate
    * All ADCs support 44.1k/48k/96kHz sample rate
    * 16/20/24-bit S/PDIF-OUT supports 44.1k/48k/88.2k/96k/192kHz sample rate
    * Up to four channels of digital microphone input are supported
    * Supports MONO line output with independent volume control
    * High-quality analog differential CD input
    * Supports external PCBEEP input and built-in digital BEEP generator
    * Software selectable 2.5V/3.75V/4.2V VREFOUT
    * Two jack detection pins each designed to detect up to 4 jacks
    * 1dB resolution of analog output volume control
    * Programmable 20dB and 40dB boost for analog microphone input
    * Supports hardware digital volume control for digital microphone input
    * Built-in headphone amplifiers for port-A and port-D
    * 4 GPIOs (GPIO0/GPIO3 are digital GPIO shared with digital MIC interface, GPIO1/GPIO2 are analog) for customized applications
    * EAPD (External Amplifier Power Down) is supported
    * Supports Anti-pop mode when analog power AVDD is on and digital power is off
    * Power support: 3.3V digital core power; 1.5V~3.3V digital IO power for HDA link; 3.3V~5.0V analog power
    * Power management features
    * 48-pin LQFP ‘Green’ package
    * 48-pin QFN ‘Green’ package