Knowles - SiSonic Microphones

Paul Boughton

SiSonic™ MEMS MICROPHONES

 

Built on our CMOS/MEMS technology platform (originally launched in 2002), the SiSonic™ silicon-based microphone series is entering its fourth generation of development, with product shipments exceeding 800 million units to date. The proven and evolving design series continues to support high-performance, high-density innovation in such applications as cell phones, digital still cameras, portable music players, and other portable electronic devices.

Design variables include ever-smaller sizes, lower profiles and mounting options, increased output capacities, and new digital audio options that eliminate analog noise. For manufacturers, surface mount designs eliminate off-line subassembly production costs. Customized designs are supplied on tape-and-reel and can be run through standard automatic pick-n-place equipment during in-line surface mount manufacturing.

• New MaxRF models eliminate GSM/TDMA burst noise and provide wide-band RF noise suppression

• Utlra Mini footprint – less than 11.5mm2 (SPU Series) • Slim Ultra Mini footprint 0- less than 8.5mm2 (SPQ Series)

• Digital microphones eliminate analog noise

• Integrated designs with differential or switchable gain

• "Zero height" for thinnest ever designs

 

The microphones can also be integrated with our patented IntelliSonic™ software and special porting designs to provide a precisely customized sound.

 

• Silicon structure for high degree of manufacturing repeatability and stable (predictable) acoustic performance

• Patented "free-floating" diaphragm is immune to shifts in microphone sensitivity caused by variable mechanical tension in traditional electret condenser microphone diaphragms

• Low mass, low size diaphragm produces excellent vibration sensitivity performance

• Excellent RFI and EMI suppression

• Excellent operating and storage temperature ratings -40C to 100C

• Versatile configuration and sound porting options for future microphone enhancements

• 45% less board space than 6x2.2 ECMs

• 30% lower profile height than ECMs

• RoHS Compliant and Halogen Free

• Highly shock resistant • Ideally suited for high volume applications

 

CONTACT:


Knowles Acoustics
Havnevej 7
DK-4000 Roskilde
Denmark
 
Phone:  +45 7025 3570
Fax:        +45 7025 3571
 
e-mail:
europeinfo@knowles.com

 

 

 

 

 

 

 

 

 

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