ISOTEMP RESEARCH, Inc. Source for Quality Oscillators

OCXO 143 SERIES
OCXO143 series The OCXO143 series oscillators are only one inch square and designed for thru-hole mounting. These packages offer much tighter frequency stability than TCXOs and in some cases cost less. Frequency adjustment is by electrical means using a potentiometer or D/A converter. A convenient voltage reference source is available for this purpose. Your choice of AT or SC cut resonators are available to meet your frequency stability requirements.

Download OCXO 143-1 Specification/Outline

Download OCXO 143-2 Specification/Outline

Download OCXO 143-3 Specification/Outline

Download OCXO 143-11 Specification/Outline

Specification Table
Parameter / Model OCXO 143-1 OCXO 143-2
Frequency 10.000000 MHz
R.F. Output Sine Wave
+4 +/- 2dBm into 50 ohms
Harmonics <-20 dBc
Change in frequency versus ..
Temperature (Ambient)
( 0°C .. +70°C)
Referenced to +25°C
< +/- 0.1 PPM < +/- 20 PPB
Time*(Aging)
Daily
1st Year
 
< +/- 10 PPB
< +/- 1 PPM
 
< +/- 1 PPB
< +/- 0.1 PPM
Time (Warm-Up)
Frequency at 3 minutes
After power on @ +25°C
Referenced to Frequency at 4 hours

< +/- 0.1 PPM

< +/- 10 PPB
Input Voltage
(+/- 5% change)
< +/- 30 PPB < +/- 10 PPB
Other Parameters
Phase Noise @ 10 Hz -90 dBc -115 dBc
Electrical Frequency
Adjustment Range**
Positive Slope (0 to +4 VDC)
>+/- 10 PPM
< +/- 20 PPM
>+/- 0.4 PPM
< +/- 1.0 PPM
Reference Voltage Output
(Used to drive the electrical
frequency adjustment input)
+4 VDC +/- 5%
<+/- 10 mV, 0°C to +70°C Referenced to +25°C
<+/- 3 mV/5% change on input voltage
Available current: 1 mA
Input Power +5 VDC +/- 5%, < 700 mA @ turn on,
< 1.5 Watts Steady State @ +25°C
Package 1.02 x 1.02 x 0.59 inches (LxWxH)
Units 1 PPM = 1x10-6 1 PPB = 1x10-9
* All aging stabilities are after storage of up to 1 year and apply after 30 days of continuous operation.
The daily aging rate also applies at the time of shipment from factory.
** The Electrical Frequency Adjustment Range is sufficient for the life of the oscillator
Specifications subject to change with frequency
Available Frequency Range: 5 MHz to 50 MHz
Including 5.0, 10.0, 10.24, 12.352, 16.384, 19.44, 24.576, 24.704, and 32.768 MHz
AVAILABLE OPTIONS:
Square Wave Output, Low Phase Noise, Different Input Voltage, Wide Electrical Frequency Adjustment, Fast Warm-Up.
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ISOTEMP RESEARCH, Inc. Tel.434-295-3101