stac9220d5taea6xr Integrated Device Technology, stac9220d5taea6xr Datasheet - Page 15

• Manufacturer Part Number: stac9220d5taea6xr
• Description: Eight Channel High Definition Audio Codecs
• Manufacturer: Integrated Device Technology

IDT™
8-CHANNEL HIGH DEFINITION AUDIO CODEC
STAC9220
8-CHANNEL HIGH DEFINITION AUDIO CODEC
1.3.
1.4.
Third Party Software Support
Description
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The STAC9220 is a high fidelity, 8-channel audio CODEC compatible with the Intel High Definition
(HD) Audio Interface. The STAC9220 provides high quality, HD Audio capability to notebook and
cost sensitive desktop PC applications.
The STAC9220 provides stereo 24-bit, full duplex resolution supporting sample rates up to 192 KHz
by the DAC and ADC. The STAC9220 DAC, ADC and SPDIF In/Out support sample rates of
96 KHz, 48 KHz and 44.1 KHz. Additional sample rates are supported by the driver software.
The STAC9220 support all desired eight channel configurations, including switchable Headphone
Out, and Universal Jacks™ functionality for jack detection and re-tasking. The SPDIF interface pro-
vides connectivity to Consumer Electronic equipment like Dolby Digital decoders, powered speak-
ers, mini-disk drives or to a home entertainment system. All analog I/O pairs support LINE_IN,
LINE_OUT and MIC.
MIC inputs can be programmed with 0/10/20/30/40dB boost. For more advanced configurations, the
STAC9220 has three General Purpose I/O (GPIO) pins. The STAC920 also provides a single ended
CD input for compatibility with DRM solutions and to support legacy OS issues.
The STAC9220 integrates a headphone amplifier which is available on Ports A and D. The head-
phone amplifier is switchable between these two outputs for increased flexibility, enhanced user
experience, and reduced implementation costs. An additional headphone is supported on Port F.
The Universal Jack capabilities allow the CODEC to detect when audio devices are connected to the
CODEC, and to allow the CODEC to be reconfigured to support these devices regardless of which
port they are plugged into the system. SPDIF input sensing is also supported. The fully parametric
IDT SoftEQ can be initiated upon headphone jack insertion and removal for protection of notebook
speakers.
The STAC9220 operates with a 3.3 V digital supply and is available in either 5 V analog supply or
3.3 V analog supply options.
Note: The Jack Detect circuit and component selection are critical for accurate detection of audio
jacks on individual ports. Please see the IDT STAC922x reference design for circuit
implementation details.
WOW™ and Tru Surround™ from SRS
Intellisonic Microphone Beam Forming from Knowles™
Maxx BASS™ from Waves
Dolby Technologies
Smart Stream™ from Sonic Focus
• Dolby Headphone™
• Dolby ProLogic II™
• Dolby Virtual Speaker™
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STAC9220
PC AUDIO
V1.0 01/08