I should have mentioned - it's a 3 terminal mic. Positive, ground, and output.
ronv in your schematic you appear to have a voltage divider, 2.4k and 1k setting up a voltage of 1.5V, with a 6.8k bias resistor then in series with the mic. What is the purpose of the 6.8k? The device max current draw is 50uA which is 300 times smaller than the current draw of the voltage divider (1.5mA) so the divider voltage is stable. So why include the 6.8k? Also - this circuit is equally as applicable to a 3 terminal mic yes?
Mosaic, I've only scanned through their application notes so I must admit I hadn't looked at that one in any detail, however it does appear to be applicable only to 2 terminal mics?