features low phase noise bipolar transistor rugged construction for extreme environmental conditions high frequency stability voltagetuned specifications maximum ratings ambient operating temperature ............. -55oc to +100 oc storage temperature .............................. -62oc to +125 oc case temperature ............................................... +125 oc dc voltage ....................................................... +20 volts maximum dc tuning volt age............................ +20 volts minimum dc tuning volt age................................. 0 volts note: care should always be taken to effectively ground the case of each unit. rev. 9/23/08 spectrum microwave 2144 franklin drive n.e. palm bay, florida 32905 ph (888) 553-7531 fax (888) 553-7532 spectrum microwave 2707 black lake place philadelphia, pennsylvania 19154 ph (215) 464-4000 fax (215) 464-4001 www.spectrummicrowave.com mechanical outline coaxial resonator oscillator series 521 1800 - 2000 mhz characteristic typical min/max ta= 25 o c ta = -20 o c to +70 o c frequency 1800 - 2000 mhz 1800 - 2000 mhz supply power dc 15 15 ma 70 80 vswr 1.5 2.0 phase noise (db) -39 dbc/hz @ 100 hz @ 1800 mhz -79 dbc/hz @ 1 khz -107 dbc/hz @ 10 khz -129 dbc/hz @ 100 khz -141 dbc/hz @ 1 mhz spurious (dbc) -80 -80 output power (dbm) +10 +13 max. harmonics (dbc) -25 -25 storage temperature -55 o c +125 o c spectrum microwave cros produce impressive frequency stability and phase noise when used in a properly designed oscillator circuit. frequency pulling +/- 0.02% +/- 0.03% frequency pushing +/- .01% / volt +/- .02% / volt temperature drift +/- 0.1% +/- 0.15%
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