Rakon Product Specification
CFPODO
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A series of single-oven OCXOs with double-oven stability.
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The CFPODO series are a range of super single oven OCXOs designed as a compact and
smart frequency source /time keeping reference for all synchronization systems,
including global positioning system (GPS) bases equipment.
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Product description
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The CFPODO series of oscillators are designed with 2 circuits: 1 circuit with the crystal
enclosed in a hermetic oven and 1 circuit with the amplifier stage. This structure
enables a very good stability versus temperature range. These parts are automatically
tuned by a digital potentiometer.
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Applications
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•
•
•
•
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Basestation
Communications
Time & frequency reference
Broadcasting
Other
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Features
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• Hold over better than 7µs over 24 hours
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Specifications
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1.0
SPECIFICATION REFERENCES
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Line Parameter
Test Condition
1.1
Model description
CFPODO
1.2
RoHS compliant
Yes. Part numbers with suffix 'LF'
1.3
Package sizes available 40.0mm x 30.0mm x 20.0mm (40): CFPO DO4
1.4
Package sizes available 50.8mm x 50.8mm x 25.0mm (50): CFPO DO1
1.5
Package sizes available 51.0mm x 41.0mm x 19.05mm (51B): CFPO DO2 & CFPO DO3
1.6
Package sizes available 50.8mm x 50.8mm x 19.05mm (50LP): CFPO DO2
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2.0
FREQUENCY CHARACTERISTICS
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Line Parameter
Test Condition
Value
2.1
Frequency range
Refer to note 1
5 to 15
2.2
Frequency calibration
Initial calibration @ 25°C
20 to 50
2.3
Frequency stability
See attached diagram (part number builder) for frequency stabilities
over temperature
vs temperature range and associated order codes
2.4
Temperature range
(Standard)
-20 to 70
2.5
Supply voltage stability See attached diagram (part number builder) for frequency stabilities
±5%
vs supply voltage and load change and associated order codes
2.6
Load sensitivity
±10%
See attached diagram (part number builder) for frequency stabilities
vs supply voltage and load change and associated order codes
2.7
Long term stability
See attached diagram (part number builder) for long term stability (1
week after operation) and associated order codes
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Unit
MHz
ppb
±ppb
°C
±ppb
±ppb
±ppb
3.0
POWER SUPPLY
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Line Parameter
3.1
Supply voltage
3.2
Power consumption
3.3
Power consumption
3.4
Power consumption
3.5
Power consumption
3.6
Power consumption
3.7
Power consumption
3.8
Power consumption
3.9
Power consumption
3.10 Warm-up time
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Test Condition
Standard supply voltage (optional: 5V±5% except CFPO DO4)
DO1: Warm-up
DO1: 25°C (calm air)
DO2: Warm-up
DO2: 25°C (calm air)
DO3: Warm-up
DO3: 25°C (calm air)
DO4: Warm-up
DO4: 25°C (calm air)
±0.01ppm
after 10 minutes, with reference to frequency reached after
1 hour of continuous operation at 25°C
Value
11.4 to 12.6
8 max
2.5 max
8 max
2.5 max
8 max
2.5 max
6 max
2 max
Unit
V
W
W
W
W
W
W
W
W
4.0
CONTROL VOLTAGE
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Line Parameter
4.1
Control voltage range
4.2
Frequency tuning
4.3
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Slope
Test Condition
Min.=0. Max.=Vref
Monotone and standard positive slope, sufficient to cover 10 years
ageing
(Negative optional). Positive
Value
0.3
Unit
ppm
Page 1
Rakon Product Specification
5.0
OSCILLATOR OUTPUT-SINEWAVE
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Line Parameter
Test Condition
5.1
Output waveform
Sinewave into 50Ω load (order code S). Square wave optional
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Value
5 to 9
Unit
dBm
6.0
PHASE NOISE
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Line Parameter
6.1
SSB phase noise
power density at 1Hz
offset
6.2
SSB phase noise
power density at 10Hz
offset
6.3
SSB phase noise
power density at
100Hz offset
6.4
SSB phase noise
power density at 1kHz
offset
6.5
SSB phase noise
power density at
10kHz offset
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Test Condition
Typical values for a 10MHz oscillator at 25°C
Value
-100
Unit
dBc/Hz
Typical values for a 10MHz oscillator at 25°C
-130
dBc/Hz
Typical values for a 10MHz oscillator at 25°C
-150
dBc/Hz
Typical values for a 10MHz oscillator at 25°C
-158
dBc/Hz
Typical values for a 10MHz oscillator at 25°C
-160
dBc/Hz
7.0
OTHER FEATURES
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Line Parameter
7.1
Reference voltage,
Vref
7.2
Reference voltage,
Vref
7.3
Reference voltage,
Vref
7.4
Retrace
7.5
Harmonic distortion
7.6
Harmonic distortion
7.7
Holdover
7.8
Holdover
7.9
Holdover
7.10 Holdover
7.11 Frequency recovery
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Test Condition
1. Standard output +8.0V
2. Optional outputs +5.0V or +6.2V (except Package 40)
3. If supply voltage is 5V, reference voltage = 4V
After 24 hours off @ 25°C (typical) and 60 min power on. Typical:
Harmonics & sub-harmonics
Non-harmonics
CFPO DO1 (see holdover diagram for a typical example)
CFPO DO2 (see holdover diagram for a typical example)
CFPO DO3 (see holdover diagram for a typical example)
CFPO DO4 (see holdover diagram for a typical example)
See frequency recovery diagram. Frequency recovery: Required time
for re-stabilisation of the device after storage or powered off period
Value
Unit
3
-35 max
-80 max
5 max
7 max
10 max
15 max
±ppb
dBc
dBc
μs
μs
μs
μs
8.0
ENVIRONMENTAL INFORMATION
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Line Parameter
Test Condition
8.1
Shock
Half sine 100g 6ms / 3 per direction. IEC 68-2-27 test Ea. / severity 100A (18
shocks total)
8.2
Vibration
Vibration - 10g / 10 - 500Hz, IEC 68-2-06, test Fc. / severity 500 / 10
8.3
Storage temperature
-45°C to 85°C
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9.0
MARKING
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Line Parameter
9.1
Type
9.2
Line 1
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Test Condition
Printed label on can (see marking diagram)
RAKON or customer logo
10.0 MANUFACTURING INFORMATION
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Line Parameter
Test Condition
10.1 Reflow shift
No reflow soldering. Hand and wave soldering only
10.2 Packaging description
Parts supplied in carton boxes, protected by foam. 3 parts per box for package 50.
6 parts per box for package 51/51B. 16 parts per box for package 40.
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11.0 NOTES
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Line Parameter
11.1 1
Test Condition
Standard frequencies available: 10, 12.8 and 13MHz
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Page 2
Microcontroller MCU
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