QF172.955-3500

The QF172.955-3500 is designed as crystal fiflter.

QF172.955-3500 has three applications. The first one is 4 pol filter. The next one is i.f.- filter. The last one is it would be used in mobile and stationary transceivers. That are all the main applications.

Some limiting values of QF172.955-3500 have been concluded into several points as follow. The first one is about its nominal frequency which would be 172.955 MHz. The next one is about its insertion loss which would be less than 7.0 dB. The next one is about its pass band at 3.0dB which would be larger than 20 kHz. The next one is about its ripple in pass band at fo ± 17.5 kHz which would be less than 2.0 dB. The next one is about its stop band attenuation at fo ± 80 kHz which would be larger than 40 dB and at fo ± 455 kHz it would be larger than 55 dB. The next one is about its alternate attenuation which would be larger than 55dB. The next one is about its spurious response which would be larger than 14dB. The next one is about its group delay distortion at fo ± 20 kHz which would be less than 25s. The next one is about its IMD at 0 dBm input level at 173.055; 173.155 MHz which would be larger than 58 dB. The next one is about its nominal drive level (max.) which would be 0dBm. The next one is about its max. allowed drive level which would be 15dBm. The next one is about its terminating impedance Z which means R1||C1 would be 50||0 ohm/pF and R2||C2 would be 50||0 ohm/pF. The next one is about its operating temperature range which would be from -20 to +70°C. The next one is about its operable temperature range which would be from -40 to +85°C.

Also some introduction about its pin connection. The first one is about its pin 1 which would be input. The next one is about its pin 2 which would be ground input. The next one is about its pin 3 which would be output. The next one is about its pin 4 which would be ground-output. That are all the important specifications above. And so on. If you have any question or suggestion about QF172.955-3500 please contact us.