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STAC9757T-AA4 is listed in the Codecs range at ChipApex. The manufacturer field lists Sigmatel. Its product description is STAC9757 - STEREO AC 97 CODEC. Review the specifications below when checking this part for your BOM.
Codecs specifications for STAC9757T-AA4
- Description：STAC9757 - STEREO AC 97 CODEC
- Series：*
- Mfr：Sigmatel
- Package：Bulk
- Type：-
- Data Interface：-
- Resolution (Bits)：-
- Sigma Delta：-
- S/N Ratio, ADCs / DACs (db) Typ：-
- Dynamic Range, ADCs / DACs (db) Typ：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
Codecs datasheet and documents for STAC9757T-AA4
Codecs Overview
The STAC9757T-AA4 is a stereo AC'97 audio codec manufactured by Sigmatel. It conforms to the Analog Component Specification of AC'97 (Audio Codec 97 Component Specification Rev. 2.1). The device integrates Sigma-Delta technology to achieve high performance, featuring an 18-bit full-duplex stereo ADC and DACs. It includes analog I/O with multiple line-level inputs and outputs, supporting 3D stereo enhancement. The component communicates via the five-wire AC-Link interface and is packaged in a 48-pin TQFP form factor compliant with AC'97 standards.
Codecs Feature Summary
- Integrates Sigma-Delta technology for high-performance audio conversion
- Supports multi-codec configurations as a secondary codec with primary controllers
- Includes 3D stereo enhancement and external amplifier power down control
Codecs Applications
- Motherboard audio integration
- Daughter board audio solutions
- Add-on sound cards
- AMR/MDC cards
Codecs Procurement Notes
Verify the specific suffix 'AA4' against official Sigmatel documentation to confirm pinout and package variations. Ensure compatibility with the target AC'97 controller chipset before procurement. Confirm that the 48-pin TQFP package matches the PCB footprint requirements. Check for lead-free compliance if required by local regulations.
Codecs Selection Notes
Select this component when an AC'97 compliant stereo codec is required for systems utilizing primary codecs like the STAC9700 series. It is suitable for applications needing up to six-channel output capability through multi-codec setups. Consider the 3.3V power supply options and the need for 3D stereo enhancement features during the design phase.
Codecs Part Context
This component belongs to the STAC97xx series of audio codecs from Sigmatel. These devices are designed for general-purpose audio applications conforming to the AC'97 standard. The series typically includes variants like the STAC9721/23 and STAC9700/04/07/44/45, offering flexible configurations for different system architectures.
Codecs Replacement Considerations
The STAC9721/23 is noted as pin-compatible with the STAC9700/44/45 series. Verify if the STAC9721 or STAC9723 can serve as a direct replacement based on pinout and functional requirements. Consult official substitution guides for confirmed equivalents.
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