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CO-770 Oven Controlled Crystal Oscillators (OCXO)


CO-770

Features:
  • Very fast warm-up
  • Low power consumption
  • Shock Resistance: 2000g/0.3 ms (1/2 Sine)
  • Vibration Resistance: 10g/10 to 2000 Hz
  • Acceleration Sensitivity: 3.5 x 10-9/G


 
Parameter Characteristics
Frequency 10 MHz Standard.
Advertised specifications available from 10 kHz to 24 MHz.
Available to 80 MHz on special order.
Temperature Stability
   0°C to + 50°C: 
-20°C to +70°C: 
-40°C to +85°C: 
B58: ±5 x 10-8
D17: ±1 x 10-7
H27: ±2 x 10-7
Aging <3 x 10-9/day average, 7 x 10-7 first year,
<4 x 10-6 for 10 years
Frequency vs. Supply(±4%) ±1 x 10-7
Short Term
(Allan Variance)
<5x10-10, 0.1 sec to 10 sec
Supply/Output
Type Supply Voltage Output
CO-770 +12 Vdc ± 0.5V HCMOS*
CO-771 +5 Vdc ± 0.5V Clipped Sine (1-2VPK-PK into 1K)
CO-772 +5 Vdc ± 0.2V HCMOS*
CO-773 +12 Vdc ± 0.5V Clipped Sine (1-2VPK-PK into 1K)
*Symmetry (@50% Vdd)
50/50 ±10%
*Rise/Fall Time(10-90%)
(15pF load)
<7ns
*Level 0 and 1
<0.4V, >4.5V
Input Current
+12 Vdc +5 Vdc +3.3 Vdc
<25 mA @
+30°C
<70 mA @
+30°C
<100 mA @
+30°C
<40 mA @
-20°C
<110 mA @
-20°C
<160 mA @
-20°C
Turn-on Current
<250 mA first 10 seconds
Warm-Up @ 25°
(24 hours off relative to the frequency
2 hours after turn-on)
  +1 x 10-6
  +1 x 10-7
<±5 x 10-8
15 seconds 
60 seconds 
10 minutes 
Phase Noise
(typical @ 10 MHz)
Sine and HCMOS
  +12 Vdc +5 Vdc
Offset Phase Noise Phase Noise
1 Hz -70 dBc/Hz -70 dBc/Hz
10 Hz -100 dBc/Hz -100 dBc/Hz
100 Hz -125 dBc/Hz -130 dBc/Hz
1 kHz -135 dBc/Hz -140 dBc/Hz
Acceleration Sensitivity
(worst case axis)
3.5 x 10-9/G
Frequency Adjust >±4 ppm range with 0 to +5V input (Input impedance > 47kr).
(external resistor adjustment available on special order)
Size 0.50" x 0.8" x 0.35"
(12.7 x 20.3 x 8.9mm)
Base 4 pin DIP package with standoffs
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CO-770

Dimension in inches
 
Pinouts
1
7
8
14
Freq. Control
0V, Case
Output
Vcc
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