OCXOs
CFPO-11: SMD Micro High Stability OCXO
ISSUE 3; 1 SEPTEMBER 2001
Description
■Micro high stability surface mount OCXO
Package Outlines
■25.0
x 22.0 x 14.0mm (25AS)
■25.0
x 22.0 x 11.5mm (25LP)
Supply Options
■
Standard: 5V (5)
■Option: 3.3V (3.3), 9V (9), 12V (12)
Standard Frequencies
■10.0, 12.8, 13.0, 16.384, 20.0, 26.0MHz
Frequency Range
■4.096 to 40.0MHz
Input Current @5V (Power Consumption)
■Warm up: <2.5W
■In steady state @ +25°C <1.5W (calm air)
Warm Up Time @25°C (typical)
■
<
± 1
x 10–8 after 5 minutes @ 25°C
Retrace after 24 hours off
■
<
± 1
x 10–8 after 60 minutes
Output Compatibility (Standard)
■HCMOS
Frequency Stability Vs Supply Voltage Change
(±5%) and Load Change (1 to 2 HCMOS)
■
<
± 5
x
10-9
Frequency Control Linearity
■
<
10%
Environmental Specification (non-operating)
■Storage Temperature Range:
–55 to 90°C
■
Shock: 50g for 11ms
■Vibration: 10g for 10 to 500Hz
Marking Includes
■Model number (including options)
■Frequency
■Serial number
■Date code (Year/Week)
Outline in mm - Package 25AS
Outline in mm - Package 25LP
25.0
1
2
3
76
5
4
Pad connections
1. Frequency control
2. Ref. voltage
3. +Vs
4. RF output
5. Oven alarm
6. N/C
7. GND
7.62
17.80
22.0
14.0 max
4.0
5.08
7.62
5.08
22.0
Solder pad layout
All tolerance ±0.2mm
25.0
1
2
3
7
6
5
4
Pad connections
1. Frequency control
2. Ref. voltage
3. +Vs
4. RF output
5. Oven alarm
6. N/C
7. GND
7.62
17.80
22.0
11.5
4.0
5.08
7.62
5.08
22.0
Solder pad layout
All tolerance ±0.2mm
Europe Tel: +44 (0)1460 270200 Fax: +44 (0)1460 72578 Website: www.cmac.com
Americas Tel: +1 919 941 9333 Fax: +1 919 941 9371
Asia Tel: +86 755 8826 5991 Fax: +86 755 8826 5990
OCXOs
Operating Stability Long Term Stability @ 25°C Frequency Phase Noise (Typical Figures) Model
Temperature within after 30 days operation Adjustment Number
Range* Temperature Per Day Per Month Per Year from 0 to V Output @ 10Hz @ 1kHz
Range (pk-pk) ref(**) Frequency
0 to 70°C <2
x
10-8 <±5
x
10-10 <±1.5
x
10-8 <±5
x
10-8 >±6
x
10-7 @ 10MHz –115 dBc/Hz –145 dBc/Hz CFPO-11A1
0 to 70°C <5
x
10-8 <±1
x
10-9 <±3
x
10-8 <±1.5
x
10-7 >±6
x
10-7 @ 10MHz –110 dBc/Hz –145 dBc/Hz CFPO-11A2
0 to 70°C <2
x
10-7 <±3
x
10-9 <±8
x
10-8 <±5
x
10-7 >±2
x
10-6 @ 26MHz –105 dBc/Hz –140 dBc/Hz CFPO-11B1
Electrical Specification
Ordering Example CFPO-11 A2 25AS-15 10.0MHz
Model (CFPO-11 A1) (CFPO-11 A2) (CFPO-11 B1)
Package Outline (25AS) (25LP)
Supply Voltage (3.3) (5) (9) (12)
Frequency (MHz)
*Please note: Extended Operating Temperature Ranges may be available on request, please contact our sales office for further details.
(**) V Ref = Volyage reference 4.0±0.2V with 5V and 12V supply
2.8±0.1V with 3.3V supply
External Frequency Adjustment
REF
20k
Manual freq. adjust.
Settability < 1 x 10
-8 Fine manual freq. adjust.
Settability <1 x 10
REF
20k
1k
-10
REF
10k
V in
Freq. control voltage and manual adjust
20k
Ext. freq. control voltage
NC
V in
All potentiometers must be 10 turns type with temperature coefficient 50ppm/°C
OUT
IFC
OUT
IFC
OUT
IFC
OUT REF
IFC
GND
GND
GND
GND
Europe Tel: +44 (0)1460 270200 Fax: +44 (0)1460 72578 Website: www.cmac.com
Americas Tel: +1 919 941 9333 Fax: +1 919 941 9371
Asia Tel: +86 755 8826 5991 Fax: +86 755 8826 5990
