ALC898数据手册Realtek中文资料规格书

描述 Description

The ALC898 is a multi-channel High Definition Audio Codec with Realtek proprietary loss-less content protection technology that protects pre-recorded content while still allowing full-rate audio enjoyment from DVD audio, Blu-ray DVD, or HD DVD discs.
The ALC898 provides ten DAC channels that simultaneously support 7.1 sound playback, plus 2 channels of independent stereo sound output (multiple streaming) through the front panel stereo outputs. Two stereo ADCs and one stereo digital microphone converter are integrated and can support a microphone array with Acoustic Echo Cancellation (AEC), Beam Forming (BF), and Noise Suppression (NS) technologies. The ALC898 incorporates Realtek proprietary converter technology to achieve 110dB Signal-to-Noise ratio (SNR) playback (DAC) quality and 104dB SNR recording (ADC) quality, and is designed for Windows Vista premium desktop and laptop systems.
All analog I/O are input and output capable, and headphone amplifiers are also integrated at eight analog output ports (port-A to port-H). All analog I/Os can be re-tasked according to user’s definitions.
Support for 16/20/24-bit S/PDIF input and output with up to 192kHz sample rate offers easy connection of PCs to consumer electronic products such as digital decoders and speakers. The ALC898 features secondary S/PDIF-OUT output and converter that transport digital audio output to a High Definition Media Interface (HDMI) transmitter. 
The ALC898 supports host audio from the Intel chipsets, and also from any other HDA compatible audio controller. With various software utilities like environment sound emulation, multiple-band and independent software equalizer, dynamic range compressor and expander, optional Dolby PCEE program, SRS TruSurround HD, SRS Premium Sound, Fortemedia SAM, Creative Host Audio, Synopsys Sonic Focus, DTS Surround Sensation | UltraPC, and DTS Connect licenses, the ALC898 offers the highest sound quality, providing an excellent entertainment package and game experience for PC users.

特性 Features

Hardware Features
High performance DACs with 110dB signal-to-noise ratio (A-weighting)
High performance ADCs with 104dB signal-to-noise ratio (A-weighting)
Meets Microsoft WLP3.x (Windows Logo Program) audio requirements
Ten DAC channels support 16/20/24-bit PCM format for 7.1 sound playback, plus 2 channels of concurrent independent stereo sound output (multiple streaming) through the front panel output
Three stereo ADCs support 16/20/24-bit PCM format, multiple stereo recording
All DACs support 44.1k/48k/88.2k/96k/192kHz sample rate
All ADCs support 44.1k/48k/88.2k/96k/192kHz sample rate
Primary 16/20/24-bit S/PDIF-OUT supports 32k/44.1k/48k/88.2k/96k/192kHz sample rate
Secondary 16/20/24-bit S/PDIF-OUT supports 32k/44.1k/48k/88.2k/96k/192kHz sample rate
16/20/24-bit S/PDIF-IN supports 32k/44.1k/48k/96k/192kHz sample rate
All analog jacks (port-A to port-H) are stereo input and output re-tasking
Port-A/B/C/D/E/F/G/H built-in headphone amplifiers
Port-B/C/E/F with software selectable boost gain (+10/+20/+30dB) for analog microphone input
High-quality analog differential CD input
Supports external PCBEEP input and built-in digital BEEP generator
Software selectable 2.5V/3.2V/4.0V VREFOUT
Up to four channels of microphone array input are supported for AEC/BF application
Two jack detection pins each designed to detect up to four jacks
Supports analog GPIO2 to be jack detection for CD input, which is used as 9th analog port
Supports legacy analog mixer architecture
Up to three GPIOs (General Purpose Input and Output) for customized applications. GPIO0 and GPIO1 share pin with DMIC-CLK/SPDIF-OUT2 and DMIC-DATA.
Supports mono and stereo digital microphone interface (pins shared with GPIO0 and GPIO1)
Supports anti-pop mode when analog power LDO-IN is on and digital power is off
Built-in analog LDO
Content Protection for Full Rate loss-less DVD Audio, Blu-ray DVD and HD-DVD audio content playback (with selected versions of WinDVD/PowerDVD/TMT)
Hardware Zero-Detect output volume control
0.75dB per step output volume and input volume control
Supports 3.3V digital core power, 1.5V or 3.3V digital I/O power for HD Audio link, and 5.0V analog power
Intel low power ECR compliant, and power status control for each analog/digital converter and pin widget
48-pin LQFP ‘Green’ package
Software Features
Meets Microsoft WLP 3.x and future WLP audio requirements
WaveRT-based audio function driver for Windows Vista and Windows 7
Direct Sound 3D™ compatible
I3DL2 compatible
7.1+2 channel multi-streaming enables concurrent gaming/VoIP
Emulation of 26 sound environments to enhance gaming experience
Multiband software equalizer and tools provided
Voice Cancellation and Key Shifting effect
Dynamic range control (expander, compressor, and limiter) with adjustable parameters
Intuitive Configuration Panel (Realtek Audio Manager) to enhance user experience
Microphone Acoustic Echo Cancellation (AEC), Noise Suppression (NS), and Beam Forming (BF) technology for voice applications
Smart multiple streaming operation
Optional Dolby PCEE program, SRS TruSurround HD, SRS Premium Sound, Fortemedia SAM, Creative Host Audio, Synopsys Sonic Focus, DTS Surround Sensation | UltraPC, and DTS Connect licenses

应用 Application

Desktop multimedia PCs
Notebook PCs