OCXOs
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
Tel: +44 (1460) 270200; Fax: +44 (1460) 72578;
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
Electrical Specification - maximum limiting values
Operating
Temperature
Range *
Stability within
Temperature
Range pk to pk
Long Term Stability @ 25°C
after 7 days operation
Frequency
Stability Vs
Supply Voltage
Change
(±5%) and
Load Change
(50±10%)
Standard Package
Type (max height)
Model Number
Per Day
Per Month
Per Year
Over 10
Years
–20 to 70°C
≤1x10–10
≤±5x10–11
≤±1.5x10–9 ≤±1.2x10–8
≤±6x10–8
≥5x10–11
(50) 25mm
CFPO-DO-1
≤2x10–10
≤±7x10–11
≤±2x10–9 ≤±1.5x10–8 ≤±7.5x10–8
≥1x10–10
(51) 25mm
CFPO-DO-2
≤5x10–10
≤±1x10–10
≤±3x10–9
≤±2x10–8
≤±1x10–7
≥1x10–10
(51B) 19.05mm
CFPO-DO-3
≤1x10–9
≤±2x10–10
≤±5x10–9
≤±5x10–8
≤±3x10–7
≥5x10–10
(40) 20mm
CFPO-DO-4
Ordering Example
CFPO-DO-1 50 S 12 A 8.0 10.0MHz
Model
Package outline (50) (51) (51B) (40)
Output Signal (S) (C)
Supply Voltage (12)
Oven Alram Option (A)
Reference Voltage (8V standard, optional = 5V or 6.2V with packages 50 & 51)
(Option: N = No Reference Voltage)
Frequency (MHz)
*Please note: Extended Operating Temperature Ranges may be available on request, please contact our sales office for further details
Outline (mm) - Package 50 (without Oven Alarm)
50.8SQ max
5.0
40.6SQ
1.0±0.05
All tolerances ±0.2mm
25.0
max
1 2
5
4
3
Pin Function
1. Frequency Control Input
2. Output ref. voltage
3. Output signal
4. Mechanical GND
and (–) supply
5. Input supply (+)
Bottom View
20.3 20.3
6
Outline (mm) - Package 51 (with Oven Alarm)
1.0±0.05
5.0
25.0
max
2
1
3
5
4
41.0
max
51.0 max
42.0
32.0
Pin Function
1 Mechanical
GND and supply
2 Frequency Control Input
3 Ref. voltage output
4 Supply Input
5 Signal output
6. Oven alarm
Bottom View
All tolerances ±0.2mm
Outline (mm) - Package 51B (without Oven Alarm)
1.0±0.05
5.0
19.05
max
2
1
3
5
4
41.0
max
51.0 max
42.0
32.0
Pin Function
1. Mechanical
GND and supply
2 . Frequency Control Input
3 . Ref. voltage output
4 . Supply input
5 . Signal output
Bottom View
All tolerances ±0.2mm