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OC-260

Oven Controlled Crystal Oscillators (OCXOs)



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OC-260 pdf
Oven Controlled Crystal Oscillators (OCXO’s)
OC-260 Series (CO-760)
Description:
The OC-260 Series OCXO offers excellent temperature stability
and aging in a 1” x 1” x 0.52” package.
Features:
• Frequencies: 5, 10, 12.8, 13, 16.384, 19.44, 20, 20.48 MHz
• Stabilities: As low as +1 x 10-8
• Temperature Range: As wide as -40oC to +85oC
• Package: 1.0” x 1.0” x 0.52”
• Output: HCMOS, Sinewave
• Supply Voltage: 5 Volts or 3.3 Volts
Performance Characteristics
Parameter
Characteristics
Standard Frequencies:
5.0, 10.0, 12.8, 13.0, 16.384, 19.44, 20.0, 20.48 MHz.
Available from 1 to 80 MHz.
Package Size: 25.7 x 25.7x 13.2 mm (1.0” x 1.0” x 0.52”)
Supply Voltage: C=5 Vdc ±5%
D=3.3 Vdc ±5% (HCMOS output only)
Input Power (steady state): <1.5W @ +25oC (-20°C / +70°C)
Input Power (turn-on): <3W (-20°C/+70°C)
Output Type: A: HCMOS
J: Sinewave; +7 dBm into 50 ohm (+5V supply only)
Output Level:
5 V: “0” <0.5 V, “1” >4.5 V 3.3 V: “0” <0.3 V, “1” >3.0 V
(HCMOS output)
Rise/Fall Time tr/tf: <10 ns (10% - 90%, HCMOS)
Symmetry (Duty/Cycle): 50/50 +10% (@50% Vdd, HCMOS)
Harmonics/subs: -20 dBc (for sinewave output)
Temperature Stability:
B-208: ±2 x 10-8 over 0/50°C
B-107: ±1 x 10-7 over 0/50°C
D-408: ±4 x 10-8 over -20/70°C
D-107: ±1 x 10-7 over -20/70°C
F-107: ±1 x 10-7 over -40/85°C
F-207: ±2 x 10-7 over -40/85°C
Note: Tighter stability options are available - contact factory.
Aging: A: 1 x 10-8/day, 2x10-6/year
C: 1 x 10-9/day, 3x10-7/year
B: 3 x 10-9/day, 1x10-6/year
Short Term Stability (Allan Deviation): 5 x 10-11/second (with aging A or B)
1 x 10-11/second (with aging C)
Phase Noise:
(typical @ 10 MHz)
-110 dBc/Hz @ 10 Hz
-130 dBc/Hz @ 100 Hz
-145 dBc/Hz @ 1 kHz
-150 dBc/Hz @ 10 kHz
-150 dBc/Hz @ 50 kHz
Frequency vs. Supply: 5 x 10-9/percent (with Aging A or B); 2 x 10-9/percent (with Aging C)
Electrical Frequency Adjust:
10 x 10-6 typical range (with Aging A or B)
2 x 10-6 typical range (with Aging C)
Mechanical Configuration: Pins for PCB mounting
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
42



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OC-260 pdf
Oven Controlled Crystal Oscillators (OCXO’s)
OC-260 Series (CO-760)
Outline Drawing
13.20
(.52)
.65
(.025)
(.0.381)Dia
5 Places
(12.50.71)max.
3
STANDOFFS
(4 PLACES)
4
.254
(.750 .010)
OCXO
0.25
(.010)
mm2.8
(.11)
(in.)
Pin Out Information
Pin Function
1 Output
2 GND, Case
3 Electrical Frequency Adjustment Input
or N/C*
4 N/C or Reference Voltage Output*
5 Supply Voltage
Pin numbers are for reference only,
and may not appear on unit.
Ordering Information
12.1!
(.480)
19.05 .254
(.750 .010)
(1.01)
* custom part number to be assigned
OC 260 C
Product Family
OC = OCXO
Package
260 = 25.7x25.7 mm
Thru-hole
Supply Voltage
C = 5.0V ±5%
D = 3.3V ±5%
Output
A = HCMOS (100K // 10 pF Load)
J = Sinewave +7 dBm/50 ohm
(5.0V supply only)
AD
107 C A
20 MHz
Frequency
1 - 80 MHz
Electrical Frequency Adjust
10 x 10-6 typical range (with Aging A or B)
2 x 10-6 typical range (with Aging C)
Aging
A = 1 x 10-8/day, 2 x 10-6/year
Temperature Stability*
B-107 = ±1x10-7 over 0°C to +50°C
B = 3 x 10-9/day, 1 x 10-6/year
C = 1 x 10-9/day, 3 x 10-7/year
B-208 = ±2x10-8 over 0°C to +50°C
D-107 = ±1x10-7 over -20°C to +70°C
D-408 = ±4x10-8 over -20°C to +70°C
F-207 = ±2x10-7 over -40°C to +85°C
F-107 = ±1x10-7 over -40°C to +85°C
*Other stability options are available upon request
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
43



Part Number OC-260
Description Oven Controlled Crystal Oscillators (OCXOs)
Maker ETC - ETC
Total Page 2 Pages
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