Data Sheet 0635A
CRYSTAL OSCILLATORS
OC-X87XXXXX Series
Micro-miniature OCXO
Creating a Part Number
FREQUENCY, MHz
OC – X 87 X X XX X
Package Code
OC 0.8x0.5” 4pin (14pin)
Temperature Range
Code
A
Specification
0°C to 50°C
Supply Voltage
B
C
D
E
-10°C to 60°C
0°C to 70°C
-20°C to 70°C
-30°C to 70°C
-40°C to 85°C
Code
Specification
5V ± 5%
3.3V ± 5%
12V ± 5%
0
A
F
F
Voltage Control
Temperature Stability
Code
V
Specification
Voltage
Control
No Voltage
Control
Code
05
10
28
30
Specification
5x10-8
Output
Code
T
1x10-7
0
Specification
2.8x10-7
3x10-7
TTL/
CMOS
50
YZ
5x10-7
YZx10-8
S
Sine
Not all combinations are available. Consult Factory
.
Notes:
1* Higher frequencies can be achieved either by using higher frequency crystals or by low noise analog harmonic
multiplication. Both methods have advantages and drawbacks. If lowest possible phase noise on the noise floor is most important –
high frequency crystal will be used. If phase noise close to the carrier and aging are more important – multiplication will be used.
Please consult factory for your specific requirement.
2* Phase noise deteriorates with frequencies going higher. If analog multiplication is used to achieve higher frequency the
phase noise roughly follows the formula of additional 20LogN, where N is a multiplication factor across entire frequency offset range.
If higher frequency is achieved by using higher frequency crystal phase noise close to the carrier deteriorates due to the lower Q of the
crystal and is usually worse, compared to multiplied solution. On the noise floor, however it remains more or less the same.
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email: nelsales@nelfc.com www.nelfc.com
NEL [ NEL FREQUENCY CONTROLS,INC ]
