WM9705CSEFL/V

Overview

The WM9705CSEFL/V is a stereo audio codec manufactured by Cirrus Logic Inc. It integrates a high-performance stereo CODEC, headphone amplifier, and microphone preamplifier into a single package. The device supports 16-bit to 24-bit resolution for both analog-to-digital and digital-to-analog conversion paths. It features a low-power architecture designed for portable applications, utilizing a serial interface compatible with standard DSP protocols. The component operates within a specified voltage range and includes integrated power management controls to optimize battery life in mobile devices.

Feature Summary

• Integrated stereo headphone amplifier with direct drive capability
• Built-in microphone preamplifiers with bias voltage generation
• Low-power operation mode for extended battery life in portable systems

Applications

• Mobile phones and smartphones
• Personal digital assistants (PDAs)
• Portable media players

Procurement Notes

Verify the specific suffix 'V' against the manufacturer's official documentation to confirm pinout compatibility and RoHS status. Ensure the source provides the original datasheet from Cirrus Logic or an authorized distributor to validate electrical characteristics and packaging details before procurement.

Selection Notes

Select this component when a compact solution combining ADC, DAC, and audio amplification is required. Verify that the system's microcontroller supports the required serial interface timing. Confirm that the thermal performance of the CSP package meets the application's heat dissipation requirements under maximum output conditions.

Part Context

This part belongs to the WM97xx series of audio codecs designed for mobile communication devices. It replaces older discrete audio solutions by integrating multiple functions into a small footprint. The series is widely used in legacy mobile platforms requiring high-fidelity audio recording and playback capabilities.

Replacement Considerations

Check for updated revisions from Cirrus Logic such as the WM971x series which may offer enhanced features. Verify pin-to-pin compatibility with any proposed substitutes to ensure board layout reuse without modification.