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STAC9705 - Audio/Modem Codec

General Description

SigmaTel’s STAC9705 is a general purpose 18-bit, full duplex, audio codec with integrated modem analog front end (AFE) that conforms to the analog component specification of AC 97 (Audio Codec 97 Component Specification rev.

2.0).

Key Features

  • High performance Σ ∆ technology.
  • 18-bit full duplex stereo A/D, D/A.
  • AC-link protocol compliance.
  • Additional audio A/D for MIC record.
  • AC 97 compliant mixer.
  • Energy saving power down modes.
  • Modem Analog Front End (AFE).
  • Six analog line-level inputs.
  • Available in 64-pin TQFP.
  • Extra Stereo Line Out 1 09/24/98.

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Datasheet Details

Part number STAC9705
Manufacturer SigmaTel
File Size 254.35 KB
Description Audio/Modem Codec
Datasheet download datasheet STAC9705 Datasheet

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STAC9700 Stereo AC97 Codec
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PRELIMINARY SigmaTel, Inc. Integrating Mixed-Signal Solutions STAC9705 Audio/Modem Codec for AC 97, 2.0 GENERAL DESCRIPTION: SigmaTel’s STAC9705 is a general purpose 18-bit, full duplex, audio codec with integrated modem analog front end (AFE) that conforms to the analog component specification of AC 97 (Audio Codec 97 Component Specification rev. 2.0). The audio DACs, ADCs, and mixers are integrated with analog I/Os which include four analog line-level stereo inputs, two analog line-level mono inputs, and 5 output channels. The modem AFE includes a fully differential ADC and DAC along with 12 GPIOs for DAA interface. Also included are an extra audio ADC for hands free operation and an extra stereo line out for headphones or speaker amplifiers.