CFPO-5: Standard OCXO (for Stratum 3E and UMTS)
ISSUE 3; 1 SEPTEMBER 2001
Description
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Environmental Specification (non-operating)
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Vibration: 10g for 10 to 500Hz
Shock: 50g for 11ms
Storage Temperature Range: –55 to 90°C
SC Cut Standard OCXO (CFPO-5A)
AT Cut Standard OCXO (CFPO-5B)
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Package Outlines
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Marking Includes
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26.0 x 36.0 x 19.0mm (36)
36.0 x 26.5 x 19.0mm with oven alarm (36A)
36.0 x 26.5 x 12.7mm (36B)
Model number (including options)
Frequency
Serial number
Date code (Year/Week)
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Supply Options
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Standard: 5V (5)
Optional: 3.3V (3.3), 12V (12)
Outline in mm - Package 36
26.5 max
17.8
36.0 max
3 2 1
Bottom
View
4
5
Pin Function
1. Input supply (+)
2. Output reference
voltage
3. N/C
4. Mechanical GND
and (–) supply
5. Output signal
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Standard Frequencies
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Frequency Range
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4.0960 to 38.88MHz
19.0 max
Power Consumption
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Warm up: < 3.5W
@ 25°C: < 1.8W (calm air)
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Warm Up Time @25°C (typical)
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< ± 1 x 10
–7
after 5 minutes (calm air)
4.5 min
∅0.8±0.05
25.4
8.1920, 10.0, 12.8, 13.0, 16.3840, 19.440, 20.0, 26.0, 38.4,
38.880MHz
All tolerances ±0.2mm
Output Compatibility
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Standard: HCMOS (C)
Option: Sine (S) > 0 dBm on 50W load
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Outline in mm - Package 36A
Frequency Stability Vs Supply Voltage Change
(±5%) and Load Change (1 to 2 HCMOS)
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<±5
x
10
–9
26.5 max
17.8
36.0 max
3 2 1
Bottom
View
4
5
Pin Function
1. Input supply (+)
2. Output reference
voltage
3. N/C
4. Mechanical ground
and (–) supply
5. Output signal
OCXOs
Phase Noise @ 10.0MHz (CFPO-5 A1)
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100Hz: < –140 dBc/Hz
1kHz:
< –150 dBc/Hz
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10kHz: <–155 dBc/Hz
Frequency Control Linearity
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19.0 max
25.4
10Hz:
<–120 dBc/Hz
<±10%
All tolerances ±0.2mm
Europe Tel: +44 (0)1460 270200
Americas Tel: +1 919 941 9333
Asia
Tel: +86 755 8826 5991
Fax: +44 (0)1460 72578
Fax: +1 919 941 9371
Fax: +86 755 8826 5990
4.5 min
∅0.8±0.05
Website: www.cmac.com
Electrical Specification
Operating Stability within
Temperature Temperature
Range*
Range pk to pk
Long Term Stability @ 25°C
after 30 days operation
Per Day
<±2
x
10
-10
<±3
x
10
-10
<±5
x
10
-10
<±1
x
10
-9
<±1
x
10
-9
<±2
x
10
-9
<±1
x
10
-9
<±3
x
10
-9
Ordering Example
Model
Package Outline (36) (36A) (36B)
Output Signal (C) (S)
Supply Voltage (5) (12) (3.3)
Oven Alarm Option (A)
Frequency (MHz)
* Please note: Extended Operating Temperature Ranges may be available on request, please contact our sales office for further details.
** V Ref. Voltage reference +2.8V with 3.3V voltage supply
+4V with +5V voltage supply
+5V with +12V voltage supply
Outline in mm - Package 36B
25.4
3
17.8
2
1
36.0
0.95±0.15
Bottom
View
5
4
26.5
Pin Function
1. Input frequency control
2. Output reference
voltage
3. Input supply (+)
4. Output signal
5. Mechanical GND and
(-) supply
Per Month
<±6
x
10
-9
<±1
x
10
-8
<±2
x
10
-8
<±3
x
10
-8
<±3
x
10
-8
<±6
x
10
-8
<±3
x
10
-8
<±1
x
10
-7
Per Year
<±3
x
10
-8
<±5
x
10
-8
<±1
x
10
-7
<±1.5
x
10
-7
<±1.5
x
10
-7
<±3
x
10
-7
<±1.5
x
10
-7
<±5
x
10
-7
Frequency
Adjustment
from OV to Vref (**)
(pk-pk)
>7
x
10
-7
>7
x
10
-7
>2
x
10
-6
>2
x
10
-6
>2
x
10
-6
>4
x
10
-6
>2
x
10
-6
>4
x
10
-6
Model Number
Package
<1
x
10
-8
–10 to 70°C
<2
x
10
-8
CFPO-5 A1
CFPO-5 A2
CFPO-5 A3
CFPO-5 A4
CFPO-5 B1
CFPO-5 B2
CFPO-5 B3
CFPO-5B4
or
36
36
36A
<5
x
10
-8
–10 to 70°C
<1
x
10
-7
or
36A
36B
CFPO-5 B2 36-C5 A 10.0MHz
12.7
External Frequency Adjustment
Manual freq. adjust.
Settability < 1 x 10-8
REF
20k
Fine manual freq. adjust.
Settability <1 x 10-10
REF
20k
1k
All potentiometers must be 10 turns type with temperature coefficient 50ppm/°C
Freq. control voltage and manual adjust
Ext. freq. control voltage
4.6±0.5
∅0.8±0.05
OUT
IFC
GND
OUT
IFC
GND
OUT
IFC
GND
REF
10k
20k
V in
OUT REF NC
V in
IFC
GND
Europe Tel: +44 (0)1460 270200
Americas Tel: +1 919 941 9333
Asia
Tel: +86 755 8826 5991
Fax: +44 (0)1460 72578
Fax: +1 919 941 9371
Fax: +86 755 8826 5990
Website: www.cmac.com
OCXOs
All tolerances ±0.2mm
ADI Reference Circuit
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