The WM8721EDS/R is a stereo DAC (Digital-to-Analog Converter) designed by Cirrus Logic, known for its high-performance audio conversion capabilities. It is commonly used in a variety of audio applications, including CD players, DVD players, AV receivers, and professional audio equipment. This DAC provides a high signal-to-noise ratio (SNR) and low total harmonic distortion plus noise (THD+N), making it ideal for applications requiring accurate and clear audio reproduction.

Applications:

• CD players
• DVD players
• AV receivers
• Sound cards
• Professional audio equipment
• Portable audio players
• Digital mixing consoles

Features:

• High SNR: Typically achieves a signal-to-noise ratio (SNR) of 105dB, ensuring clean and detailed audio output.
• Low THD+N: Boasts a low total harmonic distortion plus noise (THD+N) of -90dB, contributing to accurate audio reproduction.
• Sampling Rate Support: Supports sampling rates up to 96kHz, accommodating a wide range of audio formats.
• Oversampling Digital Filter: Incorporates an oversampling digital filter to minimize aliasing and improve audio clarity.
• Differential Analog Outputs: Features differential analog outputs for improved noise immunity and signal integrity.
• Digital Volume Control: Provides digital volume control for precise audio level adjustment.
• 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 clean and accurate audio reproduction due to its high SNR and low THD+N performance.
• Versatile Applications: 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.
• Precise Volume Control: Digital volume control allows for accurate and repeatable audio level adjustments.
• High-Quality Audio Playback: Supports sampling rates up to 96kHz, ensuring compatibility with various audio formats.
• Efficient Power Consumption: Low power consumption extends battery life in portable devices and reduces overall power consumption in stationary systems.

Additional Details:

The WM8721EDS/R typically operates from a 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 the optimal performance specified in the datasheet. The device’s internal architecture includes a delta-sigma modulator, which contributes to its high performance characteristics.