- 15 - 16 February, 2012
Southern Electronics - 08 March, 2012
UK Technology Day - 23 May, 2012
ElectroTestExpo
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Wolfson Microelectronics has introduced the WM2002 stereo headphone driver, the world’s first commercially available digital ambient noise cancelling (ANC) application-specific integrated circuit (ASIC). Featuring Wolfson’s myZone digital ambient noise cancellation (ANC) technology, the WM2002 will enable global electronics manufacturers to provide consumers with cost effective, mass-market, noise cancelling headphones and headsets.
Using unique feed-forward noise cancellation, the WM2002 delivers digital ANC performance, enabling up to 30dB peak active ambient noise cancellation. Depending on the acoustics implementation, the WM2002 actively cancels noise up to 3.5KhZ, while all the time maintaining exceptional audio quality that allows users to listen to music or take calls in noisy environments. It delivers significant savings for manufacturers in development costs, time to market and on the production line, as well as enabling a smaller PCB footprint, which allows designers more flexibility in creating compelling designs.
Designed for embedded applications or to be incorporated within a stand-alone pad-on-ear or ear-bud headset or headphone, the WM2002 supports analogue playback and analogue or digital microphone inputs for noise monitoring microphones, and is the perfect complement to Wolfson’s family of analogue and digital silicon micro-electro-mechanical systems (MEMS) microphones.
The WM2002 provides integrated power management, comprising of 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, providing manufacturers and brand customers with unrivalled flexibility. The device is configured using programmable memory settings stored in an integrated non-volatile memory, and the configuration stored in the one-time programmable (OTP) memory is enabled automatically at start-up.
Kevin Carey, Wolfson’s ANC Business Development Manager, said: “The WM2002 takes Wolfson’s myZone technology to the next level by providing best-in-class digital ANC to headphones and headsets, whilst maintaining the integrity of the playback audio quality. It’s a true HD audio solution for the next generation of noise cancelling products and will allow our global customers to make mass-market, noise cancelling headphones and headsets a reality.”
WM2002 customer evaluation boards are available to aid device evaluation and development. Reference wired headset units are available for evaluation.
