CFPO-SC Series
(Hi-Reliable OCXO - Up to “Stratum 2” performance - No re-calibration over time)
ISSUE 1; 19 OCTOBER 2004
Output Compatibility
■
Sinewave +7dBm ±2dBm into 50Ω load (S)
■
Squarewave optional (C)
Description
■
The CFPO-SC series are a range of OCXO’s removing the need
for customers to re-calibrate their equipment over the
Harmonic Distortion
lifetime of operation
■
Harmonics
< -40dBc
■
Spurious
< -80dBc
Main performances are:-
■
Free-run stability range over lifetime operation from:
Phase Noise 10.0MHz typical (sinewave)
-8 (CFPO-SC1 for replacing Rubidium clocks)
■
1Hz
-100dBc/Hz
±1.6x10
■
10Hz
-130dBc/Hz
-7 (CFPO-SC4)
to ±1x10
■
100Hz -145dBc/Hz
■
Holdover range over 24 hours operation:
■
1kHz
-155dBc/Hz
From 7µs over -20 to 70°C (CFPO-SC2) to 10µs with ±15°C
■
10kHz -158dBc/Hz
ambient change
Package Options (metal leaded package, hermetically sealed)
■
CFPO-SC-1 50.8 x 50.8 x 38.0mm (50B)
■
CFPO-SC-2 50.8 x 50.8 x 25.0mm (50)
■
CFPO-SC-3 51.0 X 41.0 X 25.0mm (51)
■
CFPO-SC-4 40.0 X 30.0 X 20.0mm (40)
Supply Options
■
Standard: 12V ±5% (12)
■
Optional: 15V (15)
Standard Frequencies
■
5.0, 8.192, 10.0, 10.24MHz
Frequency Range
■
5.0 to 15.0MHz
■
Higher frequencies may be available upon request
■
Initial tolerance @ 25°C Fo ±1x10
-8
Power Consumption (CFPO-SC1 / others)
■
Warm-up: <7.0W / 6.0W
■
@25°C: <2.5W / 1.8W (calm air)
Warm Up Time @ 25°C (typical)
±1x10
-8
after 15 mins (for CFPO-SC1)
■
±1x10
-8
after 10 mins (for others)
■
Environmental Specification (non-operating)
■
Storage temperature range -55 to 85°C
■
Shock - half-sine 50g 11ms / 3 per direction
IEC 68-2-27 Test Ea / Severity 50A
■
Vibration - 10g / 10-500Hz IEC 68-2-06 Test
Fc / Severity 500/10
Marking (printed label on top of can)
■
C-MAC or Customer’s Logo
■
Nominal Frequency (Fo) in MHz
■
Serial Number (1 letter & 5 numbers )
■
Date Code (4 digits for year and week)
■
Retrace after 24 Hours on / 24 Hours off @25°C
±2x10
-9
after 60 minutes
OCXOs
OCXOs
Frequency Adjustment
> ±5.0x10
-8
from 0V to reference voltage
■
EFC monotonic and positive slope (negative optional)
■
Oven Alarm “logic level” signal (optional) (A)
■
Logic “0” during warm-up time and if oven is not operating
■
Logic “1” when temperature regulation is operating
Reference Voltage Ouput (optional no reference voltage)
■
CFPO-SC-1 pkg 50B 8.0V±0.3V
■
CFPO-SC-2 pkg 50 8.2V±0.3V (options = 5V / 6.2V)
■
CFPO-SC-3 pkg 51 8.2V±0.3V (options = 5V / 6.2V)
■
CFPO-SC-4 pkg 40 8.0V±0.3V
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
Electrical Specification
Frequency
Long Term Stability
Stability Vs
Stability
(after frequency recovery)
Cumulated
Supply Voltage
Operating
within
Over
Change (±5%)
Temperature Temperature
Lifetime
and Load
Range
Range
(all causes)
Change
pk to pk Per Day Per Month Per Year Over 15 Years
(50Ω±10%)
<1x10
-10
<2x10
-10
-20 to 70°C
<5x10
-10
<1x10
-9
Ordering Example
Model Number
Package Outline 50B : 50 : 51 : 40 (see above table)
Output Signal (S) (Sine is standard) (C) (Optional HCMOS)
Supply Voltage (12) (15) (12V is standard)
Oven Alarm Option (A)
Reference Voltage 8.0, 8.2, 5.0, 6.2 (+ Optional: N = No reference voltage)
Frequency (MHz)
For non standard options such as different temperature ranges, negative slope EFC, cold start-up then please contact our
sales office.
<±1x10
-10
<±2x10
-10
<3x10
-9
<5x10
-9
<±1.5x10
-8
<±3x10
-8
<±5x10
-8
<±9x10
-8
<±2x10
-10
<±5x10
-10
50B S
12
<±7.0x10
-8
<±1.0x10
-7
A
<±2x10
-11
<±6x10
-10
<±5x10
-9
<±1.5x10
-8
<±3.5x10
-8
<±5x10
-11
<±1x10
-10
<±1.6x10
-8
<±5.0x10
-8
Reference
Voltages
Standard
Package type
(max height)
Model
Number
8.0V±0.3V
8.2V±0.3V
Option 5 or 6.2V
8.2V±0.3V
Option 5 or 6.2V
8.0V±0.3V
(50B) 38mm
(50) 25mm
(51) 25mm
(40) 20mm
CFPO-SC-1
CFPO-SC-2
CFPO-SC-3
CFPO-SC-4
<±5x10
-11
<±1.5x10
-9
<±1.2x10
-8
CFPO-SC-1
8.0 10.0MHz
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
Packages without Oven Alarm
Outline in mm - Package 50B
50.8SQ max
1
32.3
2
3
Packages with Oven Alarm
Outline in mm - Package 50B
50.8SQ max
Bottom View
5
6 4
20.3 20.3
3 screws M3
38.0 max
Pin Function
1. Input frequency control
2. Output reference
voltage
3. Output signal
4. Mechanical GND
and (-) supply
5. Input supply (+)
40.6SQ
Bottom View
5
6 4
20.3 20.3
3 screws M3
All tolerances ±0.2mm
38.0 max
40.6SQ
1
32.3
2
3
Pin Function
1. Input frequency control
2. Output reference
voltage
3. Output signal
4. Mechanical GND
and (-) supply
5. Input supply (+)
6. Oven alarm
All tolerances ±0.2mm
5.0
Outline mm - Package 50
20.3 20.3
1 2
3
40.6SQ
Pin
1.
2.
3.
4.
5.
Function
Input frequency control
Output ref. voltage
Output signal
Mechanical GND
and (–) supply
Input supply (+)
Outline in mm - Package 50
20.3 20.3
1 2
3
40.6SQ
Pin
1.
2.
3.
4.
5.
6.
25.0 max
Function
Input frequency control
Output ref. voltage
Output signal
Mechanical GND
and (–) supply
Input supply (+)
Oven alarm
Bottom View
5
4
Bottom View
5
6
4
50.8SQ max
25.0 max
50.8SQ max
5.0
∅1.0±0.05
All tolerances ±0.2mm
5.0
∅
1.0±0.05
∅
1.0±0.05
Outline in mm - Package 51
51.0 m ax
42.0
Outline in mm - Package 51
Pin Function
1.
Mechanical
GN D and supply
2.
Frequency control
input
3.
Ref.voltage output
4.
Supply input
5.
Signal output
41.0 max
51.0 max
42.0
3
2
1
4
5
41.0 max
B otto m Vie w
32.0
3
2
1
32.0
5.0
∅1.0±0.05
All tolerances ±0.2mm
Bottom View
4
6
5
OCXOs
5.0
∅
1.0±0.05
A ll to ler anc e s ± 0.2m m
Pin Function
1. Mechanical
GND and supply
2 . Frequency control input
3 . Ref. voltage output
4 . Supply Input
5 . Signal output
6. Oven alarm
25.0 max
Outline in mm - Package 40
25.4
22.9
3
17.8
Bottom
View
30.0 max
19.5 max
4
5
2
6
1
40.0 max
0.95
19.5 max
17.8
3
4.0±0.5
∅0.8±0.05
All tolerances ±0.2mm
∅0.8±0.05
0.95
4.0±0.5
30.0max
4
5
2
6
1
40.0 max
Pin Function
1. Input frequency control
2. Output reference
voltage
3. Input supply (+)
4. Output signal
5. Mechanical GND
and (-) supply
Outline in mm - Package 40
Bottom
View
25.4
22.9
Pin Function
1. Input frequency control
2. Output reference
voltage
3. Input supply (+)
4. Output signal
5. Mechanical GND
and (-) supply
5.0
∅1.0±0.05
25.0 max
All tolerances ±0.2mm
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
Website: www.cmac.com
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