Crystal Filter Matching 1

[fjm039]

I'm new, so go easy.

I'm attempting to match a 4 pole, 3rd overtone monolithic crystal filter with center frequency at 90 MHz. I have attempted to use the recommended terminating impedances at the input/output and the recommended coupling impedance given by the data sheet without much luck. At this point it is pretty much hit or miss. Does anyone have any suggestions from past experience on matching overtone XTAL filters? What parameters affects the BW,ripple,center freq, etc.....?

Any help would be appreciated.

Jeff