Frequency Range
7 MHz – 40 MHz
Standard Frequencies 20 MHz (SC); 13 MHz (AT)
Parameter
Min
Typ Max
Units
Operating temperature range
vs. operating temperature range
-100+100ppb -20 … +70°C O p t i o n s 5
(Referenced to +25°C)
-250+250ppb -20 … +70°C -250
+250
ppb -40… +85°C
Parameter
Min Typ Max Units Condition
Initial tolerance -0.5+0.5ppm at time of shipment, nominal EFC
vs. supply voltage change
-40+40ppb V S  ± 5% static  vs.  load change -40+40ppb Load ± 5% static vs.  aging    / day -20+20ppb after 30 days of operation vs  aging    / year -1
+1ppm after 30 days of operation Warm-up Time
2
minutes
to ± 200ppb of  fi nal frequency (1 hour
reading) @ +25°C
OX-500
Oven Controlled Crystal Oscillator
Frequency stabilities 1 [AT Cut Crystal-Standard- 7 to 20 MHz]
Base Stations Test Equipment Synthesizers
Military Communication Equipment
4-Pin package  Fast Warm-up
TCXO Replacement for better short term stability
Preliminary
1
Supply Voltage (Vs)
RF Output
Frequency Tuning (EFC)
Absolute Maximum Ratings
Notes:
1Contact factory for improved stabilities or additional product options.  Not all options and codes are available at all frequencies.
2Unless otherwise stated all values are valid after warm-up time and refer to typical conditions for supply voltage, frequency control voltage, load, temperature (25°C)
3Phase noise degrades with increasing output frequency.
4Subject to technical modifi cation.
ox5Contact factory for availability.
OX-500
Height “H”
Pin Length “L”9.5
5.85min.
Pin Connections
1Electronic Frequency Control Input (EFC)7Ground (Case)8RF Output
14Supply Voltage Input
How to order this product:
Use this worksheet to forward the following information to your factory representative :
Model
Height
-Supply Voltage
Code
RF Output Code
Temperatur Range
-
Stability
Frequency Control
-Frequency
OX-40X
-
B
A
E
-
108
-
10MHz
Stability Code:        258: ±25ppb          508: ±50ppb 107: ±100ppb        257: ±250ppb
Supply V oltage Code:  D: 5 V E: 3,3 V
RF Output Code:
A: HCMOS Temperature Range:  E: -40...+85°C J: -20...+70°C P:    0...+50°C Frequency Control:0: No Tuning 1: ±±12 ppm 2: ±±3.0 ppm
Height:
0: 9,5 mm
Model Code:500: THT Version

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