621500 APITECH | Alldatasheet
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Features
!!!!! Low Phase Noise: -138 dBc/Hz @ 100 kHz !!!!! Low Spurious: -70 dBc Typical !!!!! Environmental Screening Available Spectrum Microwave, Inc. 2707 Black Lake Place Phila, Pa. 19154 www .SpectrumMicrowave.com PH: 215-464-4000 FAX: 215-464-4001 Rev. 3/19/09
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. Internal reference models are also available. A lock indicator circuit is provided to signal an out-of-lock condition. CHARACTERISTIC TYPICAL MIN/MAX Ta= 25 ºC Ta = -20 ºC to +70 ºC Frequency 550 MHz 550 MHz Supply Power DC 15 15 mA 120 125 VSWR 1.5 2.0 Phase Noise (dB) -112 dBc/Hz @ 100 Hz -135 dBc/Hz @ 1 kHz -137 dBc/Hz @ 10 kHz -135 dBc/Hz @ 30 kHz -138 dBc/Hz @ 100 kHz -150 dBc/Hz @ 1 MHz Spurious (dBc) -70 -60 Variation Over Temperature (dBm) +/- 0.75 dBm +/- 1 dBm Output Power (dBm) +13 +12 Harmonics (dBc) -25 -20 External Reference 100 MHz 1 / 200 MHz Lock Indicator TTL (High=Locked) TTL (Low=Unlocked) Storage Temperature -55 ºC +125 ºC
MODEL 621500 (550 MHz) Spectrum Microwave, Inc. 2707 Black Lake Place Phila, Pa. 19154 www .SpectrumMicrowave.com PH: 215-464-4000 FAX: 215-464-4001 Outline Drawing