Nov. 15, 2006 — Knowles Acoustics announced it had reached a major milestone in the history of MEMS microphone technology with the shipment of its 300 millionth SiSonic surface mount MEMS microphone.
Knowles Acoustics, which shipped its first MEMS microphone in 2003, has held the position as the leading supplier in MEMS microphone shipments for 15 consecutive quarters — nearly four years.
The company said the following products are among its current and future offerings:
- Integrated ‘Mini’ Series — the third generation ‘Mini’ Series is now available with an integrated differential output for common mode noise reduction as well as an integrated switchable gain feature for hands-free applications.
- Digital Series — the company says it fourth generation ‘Digital’ is well suited for applications where component density is at a premium — such as mobile phones, digital still cameras, and MP3 players. The ‘Digital’ is a single bit, Pulse Density Modulation (PDM) device, has an integrated sleep mode, and is compatible with stereo input applications.
- On the horizon, says Knowles, is a soon-to-be-released fifth generation SiSonic — the ‘Mini Zero Height’. The new version is in a package that is 30 percent smaller than the original.