On Friday 15 December 2006 20:12, Patrick Doyle wrote: > AIC33
I know it does not fit the wanting BGA part, but if you really want a Digital Microphone take a look at http://www.akustica.com/ who really sells true Digital Microphones. "Akustica's digital microphones are the world's first surface mountable monolithic digital microphone chips that integrate an acoustic transducer, analog output amplifier, and sigma-delta modulator on a single chip. The single-bit digital output stream connects to downstream electronics without shielded cabling or complex signal routing, providing the highest degree of design flexibility and freedom. Acoustic performance of Akustica digital microphone chips is equal to or better than conventional analog microphones. An important benefit of Akustica digital microphones is their immunity to RF (radio frequency) and EM (electromagnetic) interference, which allows placement in optimal acoustic locations regardless of proximity to displays, WiFi antennae or other sources of interference that would degrade or preclude use of conventional microphones." They charge far to much for their evaluation kits... -- http://www.softwaresafety.net/ http://www.designer-iii.com/ http://www.unusualresearch.com/ _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user