OX-221 Oven Controlled Crystal Oscillator OX-221 Features Applications Surface Mount package Base stations SC CUT Crystal Test equipment Low Profile Compact Package Synthesizers standard frequency: 10, 20, 30.72 MHz Military communication equipment Digital Switching Performance Specifications 1 Frequency Stabilities ( MHz) Parameter Min Typical Max Units Condition vs. operating temperature range -3 -3 ppb --40 to +85C (referenced to +25C) Initial tolerance -0.2 +0.2 ppm at time of shipment, nominal EFC vs. supply voltage change -2 +2 ppb V 5% static S vs. load change -2 +2 ppb Load 5% static vs. aging / day -0.5 +0.5 ppb after 30 days of operation vs. aging / year -60 +60 ppb after 30 days of operation holdover -10 10 sec over 8 hours and 5C temp jump T 0 start up time 1 sec Warm-up time 5 minutes to 100ppb of final frequency (1 hour reading) +25C Page 1 of 9Performance Specifications Supply Voltage (Vs) Parameter Min Typical Max Units Condition Supply voltage (standard) 3.135 3.3 3.465 VDC 4.0 Watts during warm-up Power consumption 1.35 Watts steady state +25C RF Output Signal standard HCMOS Load 15 pF Signal Level (Vol) 0.4 VDC with Vs=3.3V and 15pF Load Signal Level (Voh) 2.4 VDC with Vs=3.3V and 15pF Load rise time 5 ns fall time 5 ns Duty Cycle 45 55 % (Voh-Vol)/2 Frequency Tuning (EFC) Tuning Range Fixed OCXO No adjust 0.4 1.0 ppm 10 MHz 0.8 2.4 ppm 20 MHz Linearity 10% Tuning Slope Positive Control Voltage Range 0.0 1.4 2.8 VDC with Vs=3.3V Reference Voltage Output (Vref) Reference Voltage 2.75 2.8 2.85 VDC only EFC Version Vs = 3.3 VDC Additional Parameters -102 - 80 dBc/Hz 1 Hz -132 -110 dBc/Hz 10 Hz -145 -130 dBc/Hz 100 Hz 3 Phase Noise 10MHz -152 -140 dBc/Hz 1 kHz -155 -145 dBc/Hz 10 kHz -155 -150 dBc/Hz 100khz -81 -70 dBc/Hz 1 Hz -114 -100 dBc/Hz 10 Hz -128 -115 dBc/Hz 100 Hz 3 Phase Noise -135 -130 dBc/Hz 1 kHz 30.72MHz -149 -140 dBc/Hz 10 kHz -163 -150 dBc/Hz 10 kHz Weight 14 g Processing & Packing Handling & Processing Note Page 2 of 9 5 Option