I have to design a low power radio audio link ideally using a single IC solution.
This device has to fit in-the-ear to measure ear canal audio levels when wearing the device as an ear plug, with or without the addition of ear defenders as extra audio attenuation. So wide dynamic range, low noise floor and large frequency response a must!
Ideally, I need microphone in and antenna out, with low power short range transmit power to keep battery as small as possible.
All suggestions for AD active devices, has it been done before, links etc gratefully recieved.
Thanks in anticipation