7.1+2 Channel HD Audio Codec with Content Protection

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The ALC892-CG/ALC892-DTS-CG is a high-performance multi-channel High Definition Audio Codec with Realtek proprietary lossless 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 ALC892 provides ten DAC channels that simultaneously support 7.1 channel 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.

All analog I/O are input and output capable, and headphone amplifiers are also integrated at three analog output ports (port-D/port-E/port-F). All analog I/Os can be re-tasked according to user definitions.

Support for 16/20/24-bit SPDIF 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 ALC892 also features secondary SPDIF-OUT output and converter to transport digital audio output to a High Definition Media Interface (HDMI) transmitter.

The ALC892 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 ALC892 offers the highest sound quality, providing an excellent entertainment package and game experience for PC users.


• Desktop multimedia PCs
• Notebook PCs

Symmetry Electronics (and its e-commerce division: SemiconductorStore.com) is an authorized Realtek distributor.


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DACs with 95dB SNR (A-weighting), ADCs with 90dB SNR (A-weighting)
Ten DAC channels support 16/20/24-bit PCM format for 7.1 channel sound playback, plus 2 channels of concurrent independent stereo sound output (multiple streaming) through the front panel output
Two stereo ADCs support 16/20/24-bit PCM format, multiple stereo recording
All DACs supports 44.1k/48k/96k/192kHz sample rate
All ADCs supports 44.1k/48k/96k/192kHz sample rate
Primary 16/20/24-bit SPDIF-OUT supports 32k/44.1k/48k/88.2k/96k/192kHz sample rate
Secondary 16/20/24-bit SPDIF-OUT supports 32k/44.1k/48k/88.2k/96k/192kHz sample rate
16/20/24-bit SPDIF-IN supports 44.1k/48k/96k/192kHz sample rate
All analog jacks (port-A to port-G) are stereo input and output re-tasking
Port-D/E/F 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 applications
Three jack detection pins; each designed to detect up to 4 jacks
Supports legacy analog mixer architecture
Up to two GPIOs (General Purpose Input and Output) for customized applications. GPIO0 and GPIO1 share pin with DMIC-CLK 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
Content Protection for Full Rate lossless DVD Audio, Blu-ray DVD, and HD-DVD audio content playback (with selected versions of WinDVD/PowerDVD/TMT)
1dB 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


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