Data Sheet 0835A
OVEN-CONTROLLED CRYSTAL OSCILLATORS
O-CEH-XXYZXX-X-X-XX-X
Rev. H
Precision Ultra Low Phase Noise OCXO in 36x27 mm "Europack"
Product Data Sheet
Features
SC-cut crystal
High Stability
H
Low Aging
Ultra Low Phase Noise Option:
Standard(L) -140dBc/Hz at 10Hz;
0.25 (6,35 mm)
-169dBc/Hz on the floor
0.026(0.65 mm)
Ø0.030 (0,76 mm) TYP
Premium(P) -145dBc/Hz at 10Hz;
-170dBc/Hz on the floor
1.00 (25,40 mm)
Ultimate(U) -115 dBc/Hz at 1 Hz
-146dBc/Hz at 10Hz;
3
4
-170dBc/Hz on the floor
Sine Wave or HCMOS/TTL output
0.70 (17,78 mm)
1.07 (27,20 mm)
2
Applications
Telecommunication Systems
Data Communications
5
1
GPS
1.42 (36,1 mm)
Instrumentation
COTS/Dual use
H Code Height, inches, TYP
5
0.5 (12.7 mm)
Vcc
6
0.63 (16mm)
7
0.75 (19mm)
Code 6 is standard unless code 5 is requested. Code 7 is
for special requirements. Stand-off positions may vary.
Vc
3
1
OUTPUT
Vref 2
DUT
4
5
10K
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
Data Sheet 0835A
OVEN-CONTROLLED CRYSTAL OSCILLATORS
Parameter
Symb
Condition
Min
Typ
Max
Unit
Note
Absolute Maximum Ratings
Vcc
12 V supply
-0.5
13.0
V
Input Break
5 V supply
-0.5
5.5
Down Voltage
Ts
-50
90
Storage temper.
°C
Vc
-1
5.5
V
Slope option "P"
Control Voltage
-5
5
Slope option "N"
-1
11
Slope option "L"
Electrical (6)
F
8
10.000
13
MHz
Frequency
F/F
vs. Temp. 4*
20
ppb
See chart below
Frequency stability
vs. Supply
0.2
0.3
ppb/10%Vcc
per day
5E-10
after 30 days
Aging
per year, first year
1E-7
5E-8 available
second year
3E-8
2.5E-7
2.7E-7
0.1s
5E-13
Premium version,
Allan Variance
1s
2E-12
Option "P"
10s
5E-12
1Hz
-105
dBc/Hz
Standard version,
SSB Phase Noise
10 Hz
-140
option L
(achieved after 10
100 Hz
-155
minutes warm-up)
1 KHz
-162
10 KHz
-168
100 KHz
-169
1Hz
-112
Premium version,
10 Hz
-145
option P
100 Hz
-155
1 KHz
-162
10 KHz
-169
100 KHz
-170
1Hz
-115
Ultimate version,
10 Hz
-146
option U 2*
100 Hz
-156
1 KHz
-163
10 KHz
-169
100 KHz
-170
After 30 minutes
±10
ppb
24 Hours off 3*
Retrace
worst direction
±1.0
ppb/G
G-sensitivity
Vcc
4.75
5.0
5.25
V
See chart below to specify
Input Voltage
11.4
12.0
12.6
P
steady state, 25°C
1.0
1.4
W
Standard Operating
Power consumption,
steady state, -30°C
1.7
Temperature*
Still air
start-up @ -30°C
2.5
3.2
Subharmonics
none
dBc
Spectral Purity
Spurious
-80
Harmonics
-35
-30
10KOhm//15pF (HCMOS/TTL),
Output Code T
Load
AC-coupled 50 Ohm (Sine-wave)
Output Code S
to 0.1ppm accuracy
3
5
minutes
Warm-up time
HCMOS/TTL compatible or Sinewave
Output Waveform
+10
+13
dBm
Output Code S
Output Power
Voh
0.7 Vref
V
Output Code T
Logic 1 (CMOS)
Vol
0.1 Vref
V
Output Code T
Logic 0 (CMOS)
Vc
0
Vref
V
Slope option "P"
Control voltage
-4.0
4.0
Slope option "N"
0
10.0
Slope option "L"
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
Data Sheet 0835A
OVEN-CONTROLLED CRYSTAL OSCILLATORS
Zin
At Vc pin
10
KOhm
Input impedance
Fm
150
Hz
Modulation
bandwidth
Vref
Vcc = 12V
5 or 4.5
N/A with slope options
Reference Voltage
Vcc = 5V
4.5
V
"N" and "L"
At Vref pin
100
Ohm
Output Impedance
from nominal F
±0.4
±0.6
ppm
Slope option "P"
Pull range
±0.5
±0.7
Slope option "N" or "L"
Monotonic, positive
1.2/Vref
ppm/V
Slope option "P"
Deviation slope
Monotonic, negative
-0.15
Slope option "N"
Monotonic, positive
0.14
Slope option "L"
Vc0
@25°C, Fnom.
Vref/2 ± 0.5
V
Slope option "P" 3*
Setability
0 ± 0.5
Slope option "N"
No internal bias for
5 ±0.5
Slope option "L"
slope option "L"
Notes:
1*. For highest operating temperature 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*. It is recommended to specify Slope option "N" for Ultimate Phase noise performance. 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*. Temperature stability is specified in total peak to peak frequency excursion over entire
operating range, not in ± from RT measurement. Over-specifying may cause cost increase.
5*. Pin 2 is connected to Vref only for Slope Option "P".
6. All parameters, unless otherwise specified, are at nominal conditions, ie: T=25°C, Nominal
Vcc & Nominal Load.
Environmental and Mechanical
-30°C to 70°C Standard, Other options – see chart below
Operating temp. range
Per MIL-STD-202, 30G, 11ms
Mechanical Shock
Per MIL-STD-202, 5G to 2000 Hz
Vibration
260°C for 10s Max leads only
Soldering Conditions
Electrical Connections
Pin #1-Vc ; Pin#2 – Vref or N/C (5*); Pin #3 – Vcc; Pin #4- Output ; Pin #5- GND;
Pin Out
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
Data Sheet 0835A
OVEN-CONTROLLED CRYSTAL OSCILLATORS
Creating a Part Number
O -
C
E H
X
X YZ
XX - X - X - XX - X FREQ
OCXO
Conventional Power
Environmental
Package Code
E 5 pin 36x27mm
Code
Specification
L
Contains a level of lead
that is in excess of
Height code per dwg
RoHS directive and is
not designed for reflow
Supply Voltage
R
RoHS compliant, not
designed for reflow
Code
Specification
0
5V ± 5%
Aging
F
12V± 5%
Insert Value per day times 1E-10
Examples
Output
5
5E-10 = 0.5 ppb/day
10
1E-9 = 1 ppb/day
Code
Specification
T
CMOS/TTL
Phase Noise (See Table)
S
Sinewave
Code
Specification
L
Standard
Temperature Stability 4*
P
Premium
U
Ultimate 6*
Code
Specification
6*Consult factory on "U" code
1x10-7
phase noise
17
5x10-8
58
2x10-8
28
Deviation slope
1x10-8
18
Yx10-Z
YZ
Code
Specification
Temperature Range
P
Positive, 0 to Vref
Code
In 5ºC steps 7*
N
Negative, -4 to 4V
First letter
Lowest temperature from A = -40ºC
L
Positive, 0 to 10 V
Second letter
Highest temperature to Z = 85ºC
Examples
IS
0°C to 50°C
GU
-10°C to 60°C
EW
-20°C to 70°C
Not all combinations are available. Consult Factory.
7*Temperature Code Table
Letter
Temp
Letter
Temp
Letter
Temp
Letter
Temp
Letter
Temp
Letter
Temp
°C
°C
°C
°C
°C
°C
-40
-15
10
35
60
85
A
F
K
P
U
Z
-35
-10
15
40
65
B
G
L
Q
V
-30
-5
20
45
70
C
H
M
R
W
-25
0
25
50
75
D
I
N
S
X
-20
5
30
55
80
E
J
O
T
Y
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
