OVEN-CONTROLLED CRYSTAL OSCILLATORS
Data Sheet 0921A
Rev F
O-CE8-XXYZXX-X-V-XX-X
Precision Very Low Phase Noise OCXO in 36x27 mm “Europack”
with OSC Disable and Oven Alarm features for Instrumentation
Product Data Sheet
Features
•
•
•
•
SC-cut crystal
High Stability
Low Aging
Very Low Phase Noise:
-135 dBc/Hz at 10Hz offset
-170 dBc/Hz on the noise floor
0.75 (19,05 mm)
0.25 (6,35 mm)
Ø0.030 (0,76 mm) TYP
Applications
•
•
•
•
•
Instrumentation
Telecommunication Systems
Data Communications
GPS
COTS/Dual use
3
1.00 (25,40 mm)
4
5
0.70 (17,78 mm)
2
1.07 (27,20 mm)
1
8
7
6
0.25(6,35 mm)
1.42 (36,1 mm)
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email:
nelsales@nelfc.com
www.nelfc.com
OVEN-CONTROLLED CRYSTAL OSCILLATORS
Parameter
Symb
Absolute Maximum Ratings
Vcc
Input Break
Down Voltage
Ts
Storage temper.
Vc
Control Voltage
Electrical (4)
Frequency
Frequency stability
Aging
Condition
12 V supply
5 V supply
Min
-0.5
-0.5
-40
-1
-5
8
vs. Temp.
vs. Supply
per day
per year, first year
second year
10 years
15 years
.1s to 10s
1Hz
10 Hz
100 Hz
1 KHz
10 KHz
100 KHz
After 30 minutes
worst direction
4.75
11.4
10.000
±10
0.2
5E-10
1E-7
3E-8
2.5E-7
2.7E-7
1E-12
-105
-135
-155
-162
-168
-170
Typ
Max
13.0
5.5
85
5.5
5
13
0.3
Unit
V
°C
V
Data Sheet 0921A
Note
Slope option “P”
Slope option “N”
F
ΔF/F
MHz
ppb
ppb/10%Vcc
See chart below
All parameters for 10 MHz
after 30 days
5E-8 available
Allan Deviation
SSB Phase Noise
(achieved after 10
minutes warm-up)
Retrace
G-sensitivity
Input Voltage
Power consumption
Vcc
P
Spectral Purity
Load
Warm-up time
Output Waveform
Output Power
Logic 1 (CMOS)
Logic 0 (CMOS)
Control voltage
Reference Voltage
Output Impedance
Modulation
Bandwidth
Pull range
Deviation slope
Setability
Oven Ready
Vc0
τ
Voh
Vol
Vc
Vref
Fm
steady state, 25°C
W
steady state, -30°C
start-up @ -30°C
3.2
Spurious
-80
dBc
Harmonics
-35
-30
Internally AC-coupled 50 Ohm
to 0.1ppm accuracy
3
5
minutes
to 10ppb accuracy
10
HCMOS/TTL compatible or Sinewave
+8
+10
dBm
0.7 Vref
V
0.1 Vref
V
0
Vref
V
-4.5
4.5
Vcc = 12V
5 or 4.5
Vcc = 5V
4.5
V
At Vref pin
100
Ohm
DC
1
KHz
from nominal F
Monotonic, positive
Monotonic, negative
@25°C, Fnom.
V pin #7
3.3
0.5
±0.4
±0.5
±0.6
±0.7
1.2/Vref
-0.15
Vref/2 ± 0.5
0 ± 0.5
ppm
ppm/V
V
V
5.0
12.0
0.8
1.5
2.5
-102
-133
-154
-161
-167
-169
±10
±1.0
5.25
12.6
1.0
dBc/Hz
ppb
ppb/G
V
24 Hours off 3*
See chart below to specify
Still air
Non-harmonic
Off time <24 hrs
Aging rate was reached
Output Code S
Output Code T
Output Code T
Slope option “P”
Slope option “N”
Note 5
Slope option “P”
Slope option “N”
Slope option “P”
Slope option “N”
Slope option “P” 3*
Slope option “N”
Ready
Not Ready
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email:
nelsales@nelfc.com
www.nelfc.com
OVEN-CONTROLLED CRYSTAL OSCILLATORS
Output Enable
CMOS Logic “1”
(4.5V>V>2.5) or
floating
Logic “0” (V<0.5V)
Enabled
V
Data Sheet 0921A
Disabled
Pout< -30 dBm
Notes:
1*. For operating temperatures higher than 70ºC the power consumption will be higher (about 20% for 85ºC).
Values listed are for test in still air environment, the values will go up while testing in the temperature chamber.
2* For recommended phase noise test, contact factory. It’s assumed that phase noise test is performed under static
conditions (no vibration), in still air, and care is taken for minimizing EMI.
3*. Longer storage time, especially at low temperatures, may affect both retrace and setability parameters. It may
require few days on power for re-stabilization.
4.
All parameters, unless otherwise specified, are at nominal conditions, ie: T=25°C, Nominal Vcc & Nominal Load.
5. Older and stock units may have MBW of 150 Hz Max.
Environmental and Mechanical
Operating temp. range
Mechanical Shock
Vibration
Soldering Conditions
Electrical Connections
Pin Out
-30°C to 70°C Standard, Other options – see chart below
Per MIL-STD-202, 30G, 11ms
Per MIL-STD-202, 5G to 2000 Hz
260°C for 10s Max leads only
Pin #1-Vc ; Pin#2, Pin #8 – For internal use – do not connect; Pin #3 – Vcc; Pin #4 – Output
Enable; Pin #5 – RF Output; Pin #6 – GND; Pin #7 – Oven Ready indicator
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email:
nelsales@nelfc.com
www.nelfc.com
OVEN-CONTROLLED CRYSTAL OSCILLATORS
Creating a Part Number
O -
C
E8
X
X YZ XX - X - V - XX - X FREQ
Data Sheet 0921A
OCXO
Conventional Power
Package Code
Environmental
Code
L
Specification
Contains a level of lead
that is in excess of
RoHS directive and is
not designed for reflow
RoHS compliant, not
designed for reflow
Europack 36x27mm, 8 pin
Supply Voltage
Code
0
F
Specification
5V ± 5%
12V± 5%
R
Aging
Insert Value per day times 1E-10
Examples
05
10
Output
Code
T
S
Specification
CMOS/TTL
Sinewave
5E-10 = 0.5 ppb/day
1E-9 = 1 ppb/day
Phase Noise Code
Code
V
Specification
Standard
Temperature Stability
Code
17
58
28
18
59
YZ
Specification
1x10
-7
5x10
-8
2x10
-8
1x10
-8
5x10
-9
Yx10
-Z
Deviation slope
Code
P
N
Specification
Positive
Negative
Temperature Range
Code
First letter
Second letter
Examples
AZ
GU
EW
In 5ºC steps **
Lowest temperature from A = -40ºC
Highest temperature to Z = 85ºC
-40°C to 85°C
-10°C to 60°C
-20°C to 70°C
**Temperature Code Table
Letter
A
B
C
D
E
Temp
°C
-40
-35
-30
-25
-20
Letter
F
G
H
I
J
Temp
°C
-15
-10
-5
0
5
Letter
K
L
M
N
O
Temp
°C
10
15
20
25
30
Letter
P
Q
R
S
T
Temp
°C
35
40
45
50
55
Letter
U
V
W
X
Y
Temp
°C
60
65
70
75
80
Letter
Z
Temp
°C
85
Not all combinations are available. Consult Factory
.
Tech Dir:
RB
Date: 05/18/0
Drawn by:
RB/bn
Date: 05/18/0
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email:
nelsales@nelfc.com
www.nelfc.com
聊聊、笑笑、闹闹
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
