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 -40
o
C to +85
o
C
Package: 1.0” x 1.0” x 0.52”
Output: HCMOS, Sinewave
Supply Voltage: 5 Volts or 3.3 Volts
Performance Characteristics
Parameter
Standard Frequencies:
Package Size:
Supply Voltage:
Input Power (steady state):
Input Power (turn-on):
Output Type:
Output Level:
Rise/Fall Time tr/tf:
Symmetry (Duty/Cycle):
Harmonics/subs:
Temperature Stability:
Characteristics
5.0, 10.0, 12.8, 13.0, 16.384, 19.44, 20.0, 20.48 MHz.
Available from 1 to 80 MHz.
25.7 x 25.7x 13.2 mm (1.0” x 1.0” x 0.52”)
C=5
Vdc ±5%
<1.5W @ +25
o
C (-20°C / +70°C)
<3W (-20°C/+70°C)
A:
HCMOS
J:
Sinewave; +7 dBm into 50 ohm (+5V supply only)
3.3 V: “0” <0.3 V, “1” >3.0 V
5 V: “0” <0.5 V, “1” >4.5 V
(HCMOS output)
<10 ns (10% - 90%, HCMOS)
50/50 +10% (@50% Vdd, HCMOS)
-20 dBc (for sinewave output)
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.
A:
1 x 10
-8
/day, 2x10
-6
/year
B:
3 x 10
-9
/day, 1x10
-6
/year
C:
1 x 10
-9
/day, 3x10
-7
/year
D=3.3
Vdc ±5% (HCMOS output only)
Aging:
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)
Frequency vs. Supply:
Electrical Frequency Adjust:
Mechanical Configuration:
-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
2 x 10
-9
/percent (with Aging
C)
5 x 10
-9
/percent (with Aging
A
or
B);
10 x 10
-6
typical range (with Aging
A
or
B)
2 x 10
-6
typical range (with Aging
C)
Pins for PCB mounting
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
42
Oven Controlled Crystal Oscillators (OCXO’s)
OC-260 Series (CO-760)
Outline Drawing
13.20
(.52)
.65
(.025)
STANDOFFS
(4 PLACES)
.8 Dia
(.031)
5 Places
25.7 max.
(1.01)
3
4
.254
(.750 .010)
OCXO
0.25
(.010)
2.8
(.11)
mm
(in.)
12.1!
(.480)
19.05 .254
(.750 .010)
(1.01)
Pin Out Information
Pin
1
2
3
4
5
Function
Output
GND, Case
Electrical Frequency Adjustment Input
or N/C*
N/C or Reference Voltage Output*
Supply Voltage
Pin numbers are for reference only,
and may not appear on unit.
* custom part number to be assigned
Ordering Information
OC
Product Family
OC
= OCXO
Package
260
= 25.7x25.7 mm
Thru-hole
Supply Voltage
C
= 5.0V ±5%
D
= 3.3V ±5%
260
C
A
D
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
B
= 3 x 10
-9
/day, 1 x 10
-6
/year
C
= 1 x 10
-9
/day, 3 x 10
-7
/year
Output
A
= HCMOS (100K // 10 pF Load)
J
= Sinewave +7 dBm/50 ohm
(5.0V supply only)
Temperature Stability*
B-107
= ±1x10
-7
over 0°C to +50°C
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
Test/Measurement
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