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Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com
Oven Controlled Crystal Oscillators (OCXO's)
OC-290
Performance Characteristics
Frequency:
10, 12.8, 16.384, 19.44, 20, 24.576, 20.48, 32.768, 38.88, 40 and 77.76 MHz
Available from 2 MHz to 80 MHz
Package Size:
25.4 x 22.0 x 10.5 mm (1.0" x 0.9" x 0.42")
Supply Voltage (Vdd):
C = 5 Vdc +5%
D = 3.3 Vdc +5%
(Other supply voltages are available upon request)
Supply Current:
<5W peak at turn-on, <1.25W stabilized @ 25
o
C (Temp Range B & D)
<5W peak at turn-on, <1.5W stabilized @ 25
o
C (Temp Range F)
Output Type:
HCMOS, LVHCMOS
Sinewave +0 dBm / 50 ohm
10 TTL
Standard Stability Options:
B - 508 = +5x10
-8
over 0
o
C to +50
o
C
B - 758 = +7.5x10
-8
over 0
o
C to +50
o
C
Note: Not all stabilities are
*B - ST3 = Stratum 3
over 0
o
C to +50
o
C
available with all frequency/output
D - 758 = +7.5x10
-8
over-20
o
C to +70
o
C
combinations. Please consult factory.
D - 107 = +1.0x10
-7
over -20
o
C to +70
o
C
*
D -ST3 = Stratum 3
over -20
o
C to +70
o
C
F -107 = +1.0x10
-7
over -40
o
C to +85
o
C
*F -ST3 = Stratum 3
over -40
o
C to +85
o
C
F -507 = +5.0x10
-7
over -40
o
C to +85
o
C
*STRATUM 3 per GR-1244-CORE Table 3-1
Total Stability:
<4.6 x 10
-6
for all causes and 10 years
vs. Holdover:
<3.2 x 10
-7
for all causes and 24 hours
vs. Temperature:
<2.8 x 10
-7
peak to peak
Stability vs. Supply:
<5 pb for a 1% change in Supply Voltage
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
N: PTR Stratum 3
Electrical Frequency Adjust:
10 x 10
-6
typical range (with Aging A or B)
2 x 10
-6
typical range (with Aging C) (with F; no frequency adjustment)
Initial Accuracy @ +25
o
C:
+1.5 ppm max after reflow
Characteristic
Parameter
Description:
Small SMD OCXO with tight stability.
AT and SC-cut versions available.
Features
5 MHz, 10 MHz, 13 MHz standard.
Other frequencies available from 2 to 80 MHz
Stability as low as 5 x 10
-8
over 0C to 50C
Aging: 1 x 10
-9
per day
Package: 25.4 x 22 x 10.5 mm
Supply voltage: +3.3 or +5.0 V
8798_AA's Vectron 05/30/02 3:11 PM Page 44
Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com
45
Oven Controlled Crystal Oscillators (OCXO's)
Pad Layout
0.1
(2.5)
0.1
(2.5)
1.0
.01
(25.4
0.2)
0.03
R(O
.75)
4
5
soldering pods
1
1
2
3
5
4
2
3
.70
.01
(17
.
8
0.2)
0.87
.01
(22
0.2)
0.41
max (10.5)
Foot pr
for PCB D
0.93
(23.5
5
Foot print
for PCB Design
0.93
(23.5)
0.16
(4)
0.14
(3.5)
.70
(17
.
8)
1 Control voltage VC
2 Reference voltage output VREF
3 Supply voltage VB
4 RF-output
5 Ground, case
Recommended Soldering Profile
Ordering Information
OC
Temperature Range
B - 508
= +5x10
-8
over 0
o
C to +50
o
C
B - 758 = +7.5x10
-8
over 0
o
C to +50
o
C
*B - ST3 = Stratum 3
over 0
o
C to +50
o
C
D - 758 = +7.5x10
-8
over-20
o
C to +70
o
C
D - 107 = +1.0x10
-7
over -20
o
C to +70
o
C
*
D -ST3 = Stratum 3
over -20
o
C to +70
o
C
F -107 = +1.0x10
-7
over -40
o
C to +85
o
C
*F -ST3 = Stratum 3
over -40
o
C to +85
o
C
F -507 = +5.0x10
-7
over -40
o
C to +85
o
C
Frequency
2 MHz to 80 MHz
290
A
C
C
508
C
10.0
Product Family
OC
= OCXO
Package
290
= 25.4X22 mm
SMD package
Input
C
= 5.0V +5%
D = 3.3V +5%
Output
A
= HCMOS, LVHCMOS
B = 10 TTL
G = Sinewave
MHz
A
Outline Drawing
Pin Out Information
OC-290
O C X O
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
N = PTR Stratum 3
Electrical Frequency Adjust
A: 10 x 10
-6
typical range (with Aging A or B) or
2 x 10
-6
typical range (with Aging C)
F: Fixed frequency. See initial accuracy.
8798_AA's Vectron 05/30/02 3:11 PM Page 45