WM9707SCFT/V

Overview

The WM9707SCFT/V is a stereo audio codec manufactured by Cirrus Logic, designed for AC'97 Rev 2.1 compliance. It integrates three analog-to-digital converters and three digital-to-analog converters within a single package. The device operates on a supply voltage ranging from 1.8 V to 3.6 V and supports serial AC'97 interface communication. It functions reliably across an operating temperature range of -40°C to +85°C. The component is housed in a compact QFN-48 surface-mount package, suitable for space-constrained portable electronic applications requiring high-fidelity audio processing.

Feature Summary

• Supports AC'97 Rev 2.1 standard for digital audio interface compatibility
• Integrates multiple ADC and DAC channels for simultaneous audio input and output processing
• Operates with low voltage power supplies for energy-efficient portable designs

Applications

• Mobile phone audio subsystems
• Portable media players
• Notebook computer audio interfaces

Procurement Notes

This component is officially designated as End-of-Life (EOL) by the manufacturer. Availability is restricted, and sourcing may require verification through authorized distributors or secondary markets. Buyers should confirm current stock status and authenticity before procurement due to the discontinued production status.

Selection Notes

Engineers replacing this part should verify pinout compatibility and AC'97 protocol support in alternative components. Since the original part is obsolete, newer Cirrus Logic codecs such as the CS47xxx series may offer functional equivalents but require schematic and software adaptation. Ensure the replacement package matches the existing PCB footprint or plan for mechanical redesign.

Part Context

The WM9707 belongs to the Cirrus Logic WM97xx family of audio codecs, which were widely used in early 2000s mobile devices. This specific variant includes the 'S' suffix indicating a specific speed grade or revision and 'FT/V' denoting the tape-and-reel packaging and RoHS compliance. It serves as a legacy solution for systems requiring integrated stereo audio conversion via the AC'97 bus.