The WM8731MC is a low power stereo codec with integrated microphone preamplifier and headphone driver, designed for portable audio applications. Manufactured by Cirrus Logic, it offers high-fidelity audio processing and conversion in a compact package, making it suitable for a wide range of consumer electronics.

Applications:

• Portable MP3 players
• Personal Digital Assistants (PDAs)
• CD players
• MiniDisc players
• Digital Audio Recorders
• PC sound cards
• VoIP applications

Features:

• Stereo audio codec with high-performance ADCs and DACs
• Integrated microphone preamplifier with adjustable gain
• Headphone driver capable of driving a variety of headphone impedances
• Low power consumption for extended battery life in portable applications
• On-chip PLL for flexible clocking options
• I2C control interface for easy configuration and control
• Sampling rates up to 96kHz
• 24-bit Delta Sigma ADCs and DACs
• ALC (Automatic Level Control) for recording
• Digital volume control

Benefits:

• High-quality audio reproduction ensures clear and accurate sound for both playback and recording.
• Integrated microphone preamplifier simplifies the design process and reduces the need for external components.
• Low power consumption extends battery life, making it ideal for portable devices.
• Flexible clocking options allow for easy integration into various system designs.
• I2C control interface provides a simple and efficient way to configure and control the codec.
• The ALC feature prevents recordings from being too quiet or too loud, optimizing the audio level.

The WM8731MC supports various audio formats and sampling rates, making it a versatile solution for a wide range of audio applications. Its integrated features, such as the microphone preamplifier and headphone driver, reduce the need for external components, simplifying the design process and minimizing board space. The codec's low power consumption is crucial for portable devices, ensuring extended battery life. The I2C interface allows for easy control and configuration of the codec's parameters, enabling designers to fine-tune the audio performance to meet specific application requirements. The WM8731MC's high-performance ADCs and DACs provide high-fidelity audio conversion, ensuring excellent sound quality for both playback and recording. Furthermore, its robust design and comprehensive feature set make it a reliable choice for demanding audio applications. The device operates from 3.3V digital supply and either 3.3V or 5V analogue supply.