Wolfson Microelectronics WM2002 stereo headphone driver

Wolfson Microelectronics has introduced the WM2002 stereo headphone driver for what is claimed as the world’s first digital ambient noise-cancelling application-specific integrated circuit (ASIC).

Featuring myZone digital ambient noise cancellation, the driver will enable global electronics manufacturers to provide consumers with mass-market, noise-cancelling headphones and headsets.

Using feed-forward noise cancellation, it delivers digital ANC performance, enabling up to 30 dB peak active ambient noise cancellation.

Depending on the acoustics implementation, it cancels noise up to 3.5 kHz, while all the time maintaining audio quality that allows users to listen to music or take calls in noisy environments.

It delivers savings for manufacturers in development costs as well as enabling a smaller PCB footprint that allows designers more flexibility in creating designs.

Designed for embedded applications or to be incorporated within a stand-alone pad-on-ear or ear-bud headset or headphone, the device supports analog playback and analog or digital microphone inputs for noise monitoring microphones.

It provides integrated power management, comprising a DC-DC converter, charge pump and LDO regulators, and the entire device can be powered from a single cell AAA battery, two AAA cells or from an external regulated supply.