OCXO SERIES - ULTRA LOW NOISE CRYSTAL OSCILLATORS
ELECTRONICS LIMITED
Pascall Electronics Limited
Westridge Business Park
Cothey Way
Ryde, Isle of Wight
PO33 1QT UK
Tel +44 (0) 1983 817300
Fax +44 (0) 1983 564708
Email enquiries@pascall.co.uk
www.pascall.co.uk
A subsidiary of EMRISE Electronics
EMRISE
Electronics
Pascall OCXO series is designed to meet the increasing demand for
high performance reference oscillators. Oven-controlled SC-cut
crystals are used to give good temperature stability combined with the
lowest possible phase noise.
The Oscillators are available with either mechanical or electrical
tuning, with the option of a low noise reference voltage output to allow
the oscillator to be tuned using an external potentiometer.
Outline Drawing
04/07
OCXO SERIES - ULTRA LOW NOISE CRYSTAL OSCILLATORS
ELECTRONICS LIMITED
Frequency range
Tuning range
Tune voltage
Temperature stability
Aging/ year
Output power
Harmonics
Phase noise
for 100MHz unit
50 - 130MHz
+/- 6 x 10
-6
0 - 10V, positive slope
-30 to 70ºC:
-6
+/- 2 x 10
-7
0.5 x 10 after 30 days
13dBm
±
2dB, 50Ω
-20dBc
Minimum guaranteed
performance
100Hz
1kHz
10kHz offsets
level 5
-150
-174 dBc/Hz
-120
level 4
-155
-175 dBc/Hz
-125
level 3
-158
-176 dBc/Hz
-130
level 2
-160
-176 dBc/Hz
-132
level 1
-162
-176 dBc/Hz
-135
For any other performance levels, please consult the factory
Supply voltage
Power consumption at 25ºC
RF output connector
Dimensions
Options
+12V +/-5%
steady state 2.5W, warm-up 5W (<5 mins)
SMA jack
51.0 x 51.0 x 19.0mm
Reference voltage output - 10.6V nominal (source impedance 10kΩ in parallel with 10µF)
Mechanical tuning +/-6 x 10
Supply voltage +15V
±5%
-6
Ordering Information
OCXO-A-XXXX-y-z-a
OCXO
Supply voltage, 0= 12v and 1=15v
Tuning 1 = mechanical 0 = electrical
Reference voltage output 1 = yes 0 = no
Output frequency to 1 decimal place
Performance level
To summarise:
a part number depicted as follows: OCXO-1-0975
This shows an OCXO with level 1 performance, 97.5MHz frequency,
with reference voltage output, tuning = mechanical and 12v operation.
Errors and omissions excepted
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