The WM8720 is a stereo DAC (Digital-to-Analog Converter) designed by Cirrus Logic. It is known for its high-performance audio conversion capabilities and is commonly used in a variety of audio applications, ranging from consumer electronics to professional audio equipment. The WM8720 provides a high signal-to-noise ratio (SNR) and low total harmonic distortion plus noise (THD+N), making it suitable for applications requiring accurate and clear audio reproduction.

Applications:

• CD Players
• DVD Players
• AV Receivers
• Sound Cards
• Professional Audio Equipment
• Portable Audio Devices
• Digital Mixing Consoles

Features:

• High SNR: Typically achieves a signal-to-noise ratio (SNR) of 106dB, ensuring clear audio reproduction with minimal background noise.
• Low THD+N: Boasts a low total harmonic distortion plus noise (THD+N) of -90dB, contributing to accurate audio output.
• Sampling Rate Support: Supports sampling rates up to 96kHz, accommodating a range of audio formats.
• Oversampling Digital Filter: Includes an oversampling digital filter to reduce aliasing and improve overall audio quality.
• Differential Analog Outputs: Features differential analog outputs for improved noise immunity and signal integrity.
• Digital De-emphasis: Incorporates digital de-emphasis for playback of pre-emphasized audio content.
• Low Power Consumption: Designed for low power operation, making it suitable for portable applications.
• Flexible Digital Interface: Supports various digital audio interfaces, including I2S, Left Justified, and Right Justified formats.

Benefits:

• Excellent Audio Quality: Delivers clear and accurate audio reproduction due to its high SNR and low THD+N performance.
• Versatile Application: Suitable for a wide range of audio applications, from consumer electronics to professional audio gear.
• Improved Noise Immunity: Differential outputs minimize noise and interference, resulting in a cleaner audio signal.
• High-Quality Audio Playback: Supports sampling rates up to 96kHz, ensuring compatibility with various audio formats.
• Simplified System Design: Flexible digital interface facilitates easy integration into different audio systems.
• Efficient Power Consumption: Low power consumption extends battery life in portable devices and reduces overall power consumption in stationary systems.

Additional Details:

The WM8720 typically operates on a single 5V analog supply and a 3.3V digital supply. It is available in a compact surface-mount package, making it easy to integrate into circuit boards. Proper power supply decoupling and careful PCB layout are crucial for achieving optimal performance, as specified in the datasheet. The device's internal architecture includes a multi-bit delta-sigma modulator, which contributes to its high performance characteristics.