I want to characterize the frequency inaccuracy of several
silicon oscillators over temperature to see which one will work
best in my end application. If I populate the oscillator on a
bare-board and solder a coaxial pig-tail to the trace/GND will
that suffice? Since the oscillator is designed to drive a high-
impedance IC clock input, will it be able to drive the low (50Ω)
impedance of the spectrum analyzer? Do I need to add some
special matching, DC-block, or bypass network? I'd like to
introduce the least amount of extra components possible as I'll
have to take them into account in my measurements as well. |show
1 more comment| In this case, you will want to add a buffer chip
to be able to drive the 50 Ohm coax and the spectrum analyzer
input. The appropriate chip depends on what type of load the
oscillator is designed to drive (TTL, CMOS, ...?), the
frequency, the available power supply voltages, etc. Possibly
you could use a transformer instead of an IC buffer to
impedance-match the cable, but the buffer