The WM8728 is a stereo audio DAC (Digital-to-Analog Converter) designed by Cirrus Logic. This DAC is commonly used in portable audio devices and other applications requiring high-quality audio playback with low power consumption. It provides a complete stereo audio output solution with integrated filters and volume control.

Applications

• Portable media players
• Mobile phones
• USB audio devices
• Consumer electronics
• Audio interfaces

Features

• High-performance stereo DAC
• Sampling rates up to 96kHz
• Low power consumption
• Integrated digital interpolation filter
• Multi-bit sigma-delta modulator
• Stereo line output
• Digital volume control

Benefits

• Enables high-fidelity audio playback in portable devices.
• Low power consumption maximizes battery life.
• Integrated features reduce BOM cost and board space.
• Excellent THD+N performance ensures clear audio reproduction.
• Digital volume control allows for precise audio level adjustments without introducing noise.

Additional Details

The WM8728 utilizes a multi-bit sigma-delta architecture to achieve high SNR and low THD+N. The integrated digital interpolation filter helps to minimize aliasing and noise artifacts. It typically operates from a single 3.3V power supply. The DAC provides a stereo line output that can be connected to headphones or external amplifiers. Digital volume control provides attenuation without adding noise. The compact package makes it suitable for space-constrained applications such as mobile phones and portable media players. It is designed to meet the demands of high-quality audio playback in a variety of consumer electronics and professional audio applications.