are there any more affordable ways to convert (sinewave) phase between two signals to voltage than with using ad8302?
I use AD8302 a in high end products and it is really good, but now I'm working on a project that is on a really tight BOM budget with 1k production volume.
The signals are relatively low (tens of millivolts maximum). The output does not need to be calibrated to volts/degrees. The end product will be calibrated. Frequency range is between 200 Mhz - 300 MHz.
Before AD8302 design we used a mixer based phase detector circuit. It had it's problems with amplifier temperature performance etc..
Any suggestions are welcome!