Applied to the new help sleep with single-chip digital analog converter

Wolfson Microelectronics (Wolfson) announced that Adaptive Sound Technologies, Inc. (ASTI) the company's new Duet help sleep Ecotones, have adopted Wolfson chip digital analog converter WM9081.

WM9081 Wolfson AudioPlus series component is one of the high integration SoC programme, suitable for portable navigation devices, mobile phones, digital radios and sleep like Ecotones Duet help etc device that provides the best audio power amplifier sound pressure associate member (Sound Pressure Levels) and sharpness.

Compared to the other uses a digital analog converter and separation of the double-D-class amplifier chip package WM9081 reduces approximately 30% of the circuit board area.

It is expected that consumer electronics manufacturers can save the audio subsystem to 20% of the cost of materials.

WM9081 compatible with leading application processor, combined with an integrated high-efficiency 2.6W switch class AB/D audio power amplifier, dynamic range controller (Dynamic Range Controller;

DRC), as well as provide fully program coefficient ReTune Mobile 5 band parametric equalizer (Parametric Equalizer). ReTune Mobile allows you to configure different Equalizer characteristics (such as rock, pop, jazz, etc.), but also to compensate for electronic power (Electro-Dynamic) speaker frequency response.

WM9081 also consolidates to program dynamic range control, assistance to low-intensity signal increases to the maximum level, to improve clarity.

WM9081 contains a limiter (Limiter) designed to prevent audio signal clipping distortion (Clipping and Distortion) to avoid overloading and damage caused by the battery box.

WM9081 supports four control interface addressing and four channel time multi-tasking (TDM), allow independent configuration and driver multiple components.

Components of the control is through the standard 2-wire, 3-wire or 4-wire control interface or hardware control pin (Hardware Control Pins) control.

By playing a dynamic combination of high quality natural sound, Ecotones Duet is specifically designed to help people to sleep more easily.

Built-in real-time synthesis engine continuous detection of intrusive noise, you can automatically adjust the sound and volume, and provides excellent sound masking capabilities. When intrusive noise mitigation, the volume will gradually return to normal.