The WM9705SEFT/V is a low-power, high-performance audio codec manufactured by Wolfson Microelectronics (now Cirrus Logic). It is designed for portable audio applications such as MP3 players, smartphones, and other mobile devices. It integrates multiple audio functions into a single chip, including analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and headphone amplifiers.

Applications

• MP3 players
• Smartphones
• Personal Digital Assistants (PDAs)
• Portable gaming devices
• Laptop computers
• Digital voice recorders

Features

• Stereo audio ADC and DAC.
• Low power consumption for extended battery life.
• Integrated headphone amplifier.
• Microphone bias.
• Support for various audio formats (e.g., MP3, WAV, AAC).
• I2C control interface.
• Digital volume control.
• Automatic Level Control (ALC) for recording.

Benefits

• High-quality audio playback and recording.
• Extended battery life in portable devices.
• Reduced system cost and size due to integration.
• Flexible audio processing capabilities.
• Easy integration with host processors via I2C.

Additional Details

The WM9705SEFT/V is typically supplied in a small form factor package. It requires a low voltage power supply, typically around 3.3V. The codec's performance is optimized for portable audio applications. Detailed electrical characteristics, such as THD+N and SNR, are available in the product datasheet.