The WM8751LSEF is a compact, low power stereo audio codec from Wolfson Microelectronics (now Cirrus Logic) designed primarily for portable audio applications. This codec combines stereo ADC and DAC functionality with additional features aimed at minimizing power consumption and component count in handheld devices.

Applications:

• Portable media players
• Mobile phones
• Digital voice recorders
• Portable gaming devices
• USB audio adapters

Features:

• Stereo ADC and DAC: Provides high-quality audio recording and playback capabilities.
• Low Power Consumption: Optimised for battery-powered applications, maximizing battery life.
• Integrated Headphone Amplifier: Directly drives headphones, reducing the need for external components.
• Microphone Bias: Supplies bias voltage for electret microphones.
• Digital Volume Control: Offers precise volume adjustment.
• I2C Control Interface: Allows for easy configuration and control via a two-wire interface.
• Flexible Digital Audio Interface: Supports multiple audio data formats including I2S.

Benefits:

• Excellent Audio Performance: Ensures clear and accurate audio reproduction.
• Extended Battery Life: Minimises power consumption, allowing for longer playback and recording times.
• Simplified System Design: Reduces component count and board space requirements.
• Cost-Effective Solution: Offers a comprehensive audio solution at a competitive price point.
• Versatile Functionality: Suitable for a wide range of portable audio devices.

Additional Details:

The WM8751LSEF utilizes a sigma-delta modulator for both the ADC and DAC sections, achieving a high signal-to-noise ratio and low distortion. It supports a variety of audio sample rates and data formats. The headphone amplifier is capable of driving a wide range of headphone impedances. The I2C control interface provides access to various configuration settings, including volume control, mute, and power management features. The device is typically available in a small QFN package. Consult the datasheet for detailed electrical characteristics, performance graphs, and application circuit examples.