characteristic typical min/max ta= 25 o c ta = -20 o c to +70 o c frequency (mhz) 550 550 supply power dc 15 15 ma 150 160 phase locked oscillator model 611209 (550 mhz) vswr 1.5 2.0 spurious (dbc) -70 -60 output power (dbm) +10 +9 specifications features ! ! ! ! ! low phase noise: -138 dbc/hz @ 100 khz ! ! ! ! ! low spurious: -70 dbc typical ! ! ! ! ! internal reference design ! ! ! ! ! environmental screening available harmonics (dbc) -25 -20 lock indicator ttl (high=locked) ttl (low=unlocked) storage temperature -55 o c +125 o c spectrum microwave, inc. 2707 black lake place phila, pa. 19154 www .s pectrummicrowave.com ph: 215-464-4000 fax: 215-464-4001 rev. 9/22/08 description spectrum microwave?s series 600 phase locked oscillators use a high ?q? coaxial resonator in the resonant circuit. the circuit is lightly loaded to obtain the lowest phase noise possible. the resonator is soldered to a printed circuit board and well grounded to minimize modulation sidebands during shock and vibration. buffer amplifiers are used to provide isolation from load vswrs; regulators filter noise on the dc input voltage. external reference models are also available. a lock indicator circuit is provided to signal an out-of-lock condition. phase noise (db) -95 dbc/hz @ 100 hz -124 dbc/hz @ 1 khz -132 dbc/hz @ 10 khz -130 dbc/hz @ 30 khz -138 dbc/hz @ 100 khz -150 dbc/hz @ 1 mhz variation over temperature (dbm) +0.75 +1 stability (ppm) +1 +15
phase locked oscillator model 611209 (550 mhz) spectrum microwave, inc. 2707 black lake place phila, pa. 19154 www .s pectrummicrowave.com ph: 215-464-4000 fax: 215-464-40 01 outline drawing
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