ULTRA LOW NOISE VHF CRYSTAL OSCILLATORS
ELECTRONICS LIMITED
Pascall Electronics Limited
Westridge Business Park
Cothey Way
Ryde, Isle of Wight
PO33 1QT UK
OCXO series &
NEW
OCXOF Series
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
El
ect
ronics
Available with -137dBc/Hz@100Hz offset
-182dBc/Hz Noise floor
}
guaranteed performance
for a100MHz unit
Pascall OCXO’s are 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 Pascall OCXO series has already established itself as the industry
leader in phase noise performance.
The ‘NEW OCXOF’ Series offers the same very low close-in phase
noise combined with even lower noise floor and higher output power.
Typical applications:
Low noise Frequency Multipliers
Phase noise test systems
High performance synthesisers
Radar & EW
03/09
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
40 - 140MHz
+/- 6 x 10
-6
0 to +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
10Hz
level E
-102
level 1
-100
level 2
-97
level 3
-95
level 4
-90
level 5
-85
100Hz
-137
-135
-132
-130
-125
-120
1kHz
-164
-162
-160
-158
-155
-150
10kHz offsets
-178
-176
-176
-176
-175
-174
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
For performance levels at other frequencies, please consult the sales office.
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 - 10.5V nominal (source impedance 10kΩ in parallel with 10μF)
Mechanical tuning +/-6 x 10
Supply voltage +15V
±5%
-6
Errors and omissions excepted
100MHz level E OCXO
NEW OCXOF SERIES - EXTRA LOW NOISE FLOOR CRYSTAL OSCILLATORS
ELECTRONICS LIMITED
Frequency range
Tuning range
Tune voltage
Temperature stability
Aging/ year
Output power
Harmonics
Phase noise
for 100MHz unit
40 - 140MHz
+/- 6 x 10
-6
0 to +10V, positive slope
-30 to 70ºC:
-6
+/- 2 x 10
-7
0.5 x 10 after 30 days
18dBm
±
2dB, 50Ω
-30dBc
Minimum guaranteed
performance
10Hz
level E
-102
level 1
-100
100Hz
-137
-135
1kHz
-164
-162
10kHz
-178
-176
100kHz offsets
-182 dBc/Hz
-182 dBc/Hz
For performance levels at other frequencies, please consult the sales office.
Supply voltage
Power consumption at 25ºC
RF output connector
Dimensions
Options
+12V +/-5%
steady state 3.5W, warm-up 6W (<5 mins)
SMA jack
51.0 x 51.0 x 19.0mm
Reference voltage output - 10.5V nominal (source impedance 10kΩ in parallel with 10μF)
Mechanical tuning +/-6 x 10
Supply voltage +15V
±5%
-6
Errors and omissions excepted
120MHz OCXOF level E
ULTRA LOW NOISE VHF CRYSTAL OSCILLATORS
ELECTRONICS LIMITED
Outline Drawing
Dimensions and connections are the same for OCXO & OCXOF series
Ordering Information
OCXO
OCXO-A-XXX.X-B-C-D
OCXOF
OCXOF-A-XXX.X-B-C-D
OCXO-A-XXX.X-B-C-D
Supply voltage, 0= 12v and 1=15v
Tuning 0 = electrical 1 = mechanical
Reference voltage output 0 = no 1 = yes
Output frequency to 1 decimal place
Performance level
OCXOF-A-XXX.X-B-C-D
Supply voltage, 0= 12v and 1=15v
Tuning 0 = electrical 1 = mechanical
Reference voltage output 0 = no 1 = yes
Output frequency to 1 decimal place
Performance level
To summarise:
a part number depicted as follows: OCXO-1-0975-1-0-0
This shows an OCXO with level 1 performance, 97.5MHz frequency,
with reference voltage output, electrical tuning and 12v operation.
Errors and omissions excepted
模拟与混合信号
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