Holdover Reference Oscillator
OX-203
OX-203
Description
The Holdover Reference Oscillator family is designed specifically to meet the need for a high accuracy cost effective backup
reference.
These high stability oscillators will provide consistent, repeatable, extended holdover to the stated phase accuracy - making them
ideal for applications where GPS, 1588 or other sources of timing are intermittent or prone to extended periods of unavailability.
Features
•
Available in 8 hour and 24 hour version
•
Holdover accuracy available to
≤8μs
and
≤1μs
•
Specifically designed for inter-operability with existing designs
based on conventional OCXO’s.
•
Advanced digital compensation techniques take place inside
the Holdover Reference - no need for programming or other user
intervention.
Applications
• Precision Timing Applications in:
•
Wireless Base Stations
•
Wireless Backhaul
•
Digital Video Broadcast
•
Low latency optical networking
•
Power distribution
•
Test and Measurement
Specifications
Parameter
Ouput Frequency
Holdover Accuracy
over 8 hours
(ordering option)
Holdover Accuracy
over 8 hours
(ordering option)
Holdover Accuracy
over 24 hours
(ordering option)
Warm up time
Min
5
Typical
Max
20
8.0
Units
MHz
μs
Condition
150C
range, Vs ±5%, Load +-5%, after 24 hours of operation
1.0
μs
150C
range, Vs ±5%, Load +-5%, after 24 hours of operation
8.0
μs
150C
range, Vs ±5%, Load +-5%, after 24 hours of operation
5
minutes
to ±10ppb of final frequency (1 hour reading) @25
0C
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Specifications (continued)
Parameter
Supply voltage
Power Consumption
Power Consumption
Signal
Load
Signal Level (Vol)
Signal Level (Voh)
Duty Cycle
Signal
Load
Output Power @ 5.0V
Sub Harmonics
Spurious
Tuning Range
Tuning Range
Linearity
Tuning Slope
Control Voltage
Range
Phase Noise 1 Hz
Phase Noise 10 Hz
Phase Noise 100 Hz
Phase Noise 1kHz
Phase Noise 10kHz
Maximum supply
voltage
Maximum output
load
Operable Tempera-
ture Range
Storage Temperature
Range
Weight
Dimensions
-40
-55
0
1.65
-98
-125
-135
-143
-150
+-0.15
10%
Positive
3.3
-90
-120
-130
-138
-145
6.0
50
85
85
Vdc
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
With Vs = 5.0 Vdc
@10MHz
0
50
3
6
-25
-65
Fixed OCXO; No adjustment
+-0.4
ppm
3.5
40
Sine Wave
Ohm
dBm
dBc
dBc
50 Ohm Load
50 Ohm Load
50 Ohm Load
60
15
0.5
HCMOS
pF
Vdc
Vdc
%
With Vs=5.0 and 15pF load
With Vs=5.0 and 15pF load
@ (Voh-Vol)/2
Min
4.75
Typical
5
Max
5.25
3.1
1.5
Units
Supply
Vdc
Watts
Watts
Condition
during warmup
steady state at 25
0C
Output
Maximum Ratings
Vdc
pF
0C
0C
Mechanical
16.0
25.8x25.8x15.35
g
mm
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Typical Performance Data
Holdover Perfomance - 96 Hours
MTIE and TDEV - 0.3mHz loop filter bandwidth
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Outline Drawing
Pin Assignment
Pin
1
2
4
6
7
13
15
17
19
Connection
RF Output
Do Not Connect
Case Ground
Do Not Connect
EFC (Frequency Control)
Do Not Connect
Do Not Connect
Do Not Connect
Supply Voltage
Ordering Information
OX - 203 1 - D A E - 808 0 - 10M0000000
Product
OX: OCXO
Package Type
203: THT Version
Height
1: 15.35mm
Supply Voltage
D: 5.0V
Output
A: HCMOS
E: Sinewave
Frequency
Frequency Control
0: No Tuning
1: ±0.15 to ±0.4ppm
Holdover Range
808: 8μs over 8 hours
824: 8μs over 24 hours
Temperature Range
108: 1μs over 8 hours
E: -40 to +85
0C
J: -20 to +70
0C
P: 0 to +50
0C
*Note: not all combination of options are available.
Other specifications may be available upon request.
For Additional Information, Please Contact
Vectron International
267 Lowell Road
Hudson, NH 03051
Tel: 1.888.328.7661
Fax: 1.888.329.8328
USA:
Vectron International
Landstrasse, D-74924
Neckarbischofsheim, Germany
Tel: +49 (0) 3328.4784.17
Fax: +49 (0) 3328.4784.30
Europe:
Vectron International
1F-2F, No 8 Workshop, No 308 Fenju Road
WaiGaoQiao Free Trade Zone
Pudong, Shanghai, China 200131
Tel: 86.21.5048.0777
Fax: 86.21.5048.1881
Asia:
Disclaimer
Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice. No liability is assumed as a result of their use or application.
No rights under any patent accompany the sale of any such product(s) or information.
Revision 10/06/2011
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
