EX-400 Evacuated Miniature Crystal Oscillator EX-400 Description The EX-400 provides exceptionally low aging rates and tight temperature stabilities in an extremely small package over a wide range of environmental conditions. This EMXO series bridges the gap between current large, high precision OCXOs and smaller TCXOs. The EX-400 Series becomes the most economical choice where there is a need for spectral purity, short and long term stability, along with small size and dramatically reduced power consumption. Features Applications 4-Pin Dip SONET/SDH, DWDM, FDM, ATM, 3G Uses Doubly Rotated Crystal Telecom Transmission and Switching Equipment Low Power Consumption: <0.35 watts +25C Wireless Communication Equipment Previous Model Number: EX-380, EX-381, EX-385 series Military Airborne and Mobile systems Frequency Range: 10 MHz - 80 MHz Performance Specifications Frequency Stabilities1 Parameter Min Typical Max Units Condition -75 +75 -20... +70C (10 to 20.49 MHz) -100 +100 ppb -20... +70C (10 to 50 MHz) -250 +250 -20... +70C (10 to 80 MHz) -100 +100 -40 +85C (10 to 20.49 MHz) vs. operating temperature range (reference to -150 +150 ppb -40 +85C (10 to 50 MHz) +25C) -250 +250 -40 +85C (10 to 80 MHz) -150 +150 -55 +85C (10 to 50 MHz) ppb -250 +250 -55 +85C (10 to 80 MHz) -140 +140 -20 +70C Operating Temp -140 +140 ppb -40 +85C (10 to 50 MHz) vs. Stratum3 per -140 +140 -55 +85C (10 to 20.49 MHz) GR-1244- Holdover +370 ppb 24 hours CORE -370 Drift +4.63 10-13/sec Over 7100 seconds -4.63 MTIE +1000 ns 0.16sec < Observe Times < 64 sec 1 to 1ppm of final frequency (1 hour) Warm-up Time minutes 2 to 100ppb of final frequency (1 hour) Initial Tolerance (10 to 19.9 MHz) -1.0 +1.0 ppm for fixed frequency Initial Tolerance (20 to 80 MHz) -1.5 +1.5 vs. supply voltage change (10 to 50 MHz) -15 +15 ppb VS 5% vs. supply voltage change (50 to 80 MHz) -25 +25 vs. load change (10 to 80 MHz) -15 +15 ppb Load 5% Vectron International 267 Lowell Road, Unit 102, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Performance Specifications Frequency Stabilities1 (continued) Parameter Min Typical Max Units Condition vs. aging / day (10 to 14.9 MHz) -1.0 +1.0 vs. aging / day (15 to 19.9 MHz) -2.0 +2.0 ppb after 30 days of operation vs. aging / day (20 to 49.9 MHz) -3.0 +3.0 vs. aging / day (50 to 80.0 MHz) -4.0 +4.0 vs. aging / 1st year (10 to 14.9 MHz) -200 +200 vs. aging / 1st year (15 to 19.9 MHz) -300 +300 ppb after 30 days of operation vs. aging / 1st year (20 to 80 MHz) -500 +500 vs. aging / 10 year (10 to 14.9 MHz) -1000 +1000 vs. aging / 10 year (15 to 19.9 MHz) -2000 +2000 ppb after 30 days of operation vs. aging / 10 year (20 to 80 MHz) -3000 +3000 Supply Voltage (Vs) Supply voltage (Vs) 4.75 5.0 5.25 VDC Supply voltage (Vs) 3.135 3.3 3.465 VDC 1.5 during warm-up 0.35 steady state +25C (10 to 29.99 MHz) Power Consumption 0.45 Watts steady state +25C (30 to 80 MHz) 0.7 steady state -40C (10 to 29.99 MHz) 0.8 steady state -40C (30 to 80 MHz) RF Output Signal Standard HCMOS Load 15 pF Signal Level (Vol) 0.4 VDC 4.0 Vs=5 Vdc Signal Level (Voh) VDC 2.6 Vs=3.3 vdc Rise/Fall Time +5 ns (10-80%) of Vs Duty cycle 40 60 % (Voh-Vol)/2 Signal Option Sinewave Load 50 ohm Output Power Standard 0 +4 dBm 50 ohm load Output Power Option +3 +7 dBm 50 ohm load Frequency Tuning (EFC) Tuning Range Fixed OCXO No adjust 1.0 5.0 with 10 to 14.99 MHz 2.0 8.0 with 15 to 20.48 MHz Tuning Range ppm 3.0 10.0 with 20.5 to 49.99 MHz 4.0 12.0 with 50 to 80 MHz Control Voltage Range 0 Vs VDC Tuning Slope Positive 0.4 During Warmup Oven Alarm Logic 4.0 VDC Vs=5.0 Vdc After Warmup 2.6 Vs=3.3 Vdc After Warmup Additional Parameters -120 10 Hz -140 100 Hz Phase Noise 10 MHz (Typical) -145 dBc/Hz 1 kHz -155 10 kHz -155 100 kHz -100 10 Hz -130 100 Hz Phase Noise 20 MHz (Typical) -140 dBc/Hz 1 kHz -145 10 kHz -150 100 kHz Vectron International 267 Lowell Road, Unit 102, Hudson, NH 03051 Tel: 1-88-VECTRON-1