The WM8985GEFL is a high-performance, low-power stereo codec designed by Wolfson Microelectronics plc (now Cirrus Logic). It is primarily used in portable audio devices, smartphones, and other multimedia applications to provide high-fidelity audio playback and recording capabilities. This codec integrates various audio processing functions into a single chip, simplifying system design and improving performance.

Applications

• Smartphones: Used in smartphones for audio playback, recording, and voice communication.
• Portable Audio Players: Integrated into MP3 players, digital audio recorders, and other portable audio devices.
• Tablet Computers: Employed in tablets for multimedia playback and audio recording.
• Digital Cameras: Used in digital cameras for audio recording and playback of video soundtracks.
• Gaming Devices: Integrated into portable gaming consoles for immersive audio experiences.

Features

• Stereo Codec: Supports stereo audio playback and recording.
• Low Power Consumption: Designed for low power operation, extending battery life in portable devices.
• High-Resolution Audio: Supports high-resolution audio formats for superior sound quality.
• Integrated Headphone Amplifier: Includes a high-performance headphone amplifier.
• Multiple Audio Interfaces: Supports various audio interfaces, including I2S, PCM, and USB.

Benefits

• Superior Audio Quality: Delivers high-fidelity audio playback and recording.
• Extended Battery Life: Minimizes power consumption, extending the operating time of battery-powered devices.
• Simplified System Design: Reduces the number of discrete components required for audio processing.
• Enhanced User Experience: Provides immersive audio experiences for multimedia applications.
• Flexible Configuration: Offers various configuration options to suit different application requirements.

Additional Details

The WM8985GEFL typically operates with a supply voltage range of 1.8V to 3.3V. It features a signal-to-noise ratio (SNR) of up to 100dB and a total harmonic distortion plus noise (THD+N) of less than 0.01%. The device is available in a QFN package. Cirrus Logic’s WM8985 series is widely used for its reliability and performance in various audio processing applications. It supports digital audio effects processing, such as equalization and noise reduction. The integrated microphone bias circuit simplifies the design of audio input circuits.