WM8728

Product Overview

WM8728 is a Wolfson Microelectronics high-performance 24-bit stereo digital-to-analog converter (DAC) designed for advanced audio applications. The device supports PCM audio data up to 24-bit resolution and 192kHz sampling rates, integrating digital interpolation filters, multi-bit sigma-delta modulators and stereo DAC channels in a compact 20-pin SSOP package. With excellent audio performance, integrated digital volume control and flexible serial audio interfaces, WM8728 is widely used in DVD players, home theater systems, digital TVs and high-quality audio equipment.

Key Features

• Manufacturer: Wolfson Microelectronics

• Part Number: WM8728

• Device Type: Stereo Digital-to-Analog Converter (DAC)

• Product Category: Audio Interface IC

• DAC Resolution: 24-bit

• Number of DAC Channels: 2 Channels (Stereo)

• Maximum Sampling Rate: 192kHz

• Audio Data Format: PCM

• Supported Word Lengths: 16-bit / 20-bit / 24-bit / 32-bit

• Digital Interface: I2S / Left Justified / Right Justified / DSP Mode

• Serial Control Interface: 2-wire or 3-wire MPU interface

• Signal Processing: Digital interpolation filter

• Modulator Type: Multi-bit sigma-delta modulator

• DAC Signal-to-Noise Ratio: 106dB (A-weighted)

• Total Harmonic Distortion: Approximately -97dB

• Digital Volume Control: Independent left/right channel control

• Volume Control Range: 127.5dB in 0.5dB steps

• Mute Function: Digital soft mute support

• DSD Support: Compatible DSD operation mode

• Supply Voltage: 3.0V to 5.5V

• Low Power Consumption: Designed for portable and consumer audio systems

• Analog Output: Stereo voltage output

• Package Type: SSOP-20

• Number of Pins: 20 pins

• Mounting Type: Surface Mount

• Operating Temperature: Commercial temperature range

• Application: High-quality digital audio conversion

• Typical Applications: DVD audio players, home theater systems, digital TVs, broadcast receivers and multimedia equipment

• Lifecycle Status: Legacy / discontinued Wolfson audio IC family

• Ordering / Packaging Note: Verify package marking, date code and authenticity before procurement.

Applications

WM8728 is designed for high-quality audio playback systems requiring low distortion and high dynamic range. Typical applications include DVD-Audio players, universal disc players, home theater equipment, digital televisions, digital broadcast receivers, AC-3/DTS/MPEG audio decoder systems and professional audio devices. 

Quality & Sourcing

Antrex Electronics can support WM8728 sourcing with stock verification, RFQ quotation, manufacturer confirmation, package inspection, marking verification, date code review and shipment arrangement. Customers should confirm package type, audio interface requirements and replacement compatibility before procurement.

Quality support can include visual inspection, authenticity verification, electrical testing coordination and third-party inspection when required. Audio equipment manufacturers, repair centers, industrial electronics suppliers and electronic component buyers are welcome to submit sourcing requests for WM8728 and other Wolfson audio IC products.