Stratum 3
Oven Controlled Oscillators
March 2007
• Ovenized quartz crystal high precision square
wave generator with a CMOS output.
• 3.3V or 5.0V operation available
• Tube packaging is available.
•
•
•
•
10 to 40 MHz
Full Size Thru-Hole DIP package
Electronic Frequency Control (EFC) optional
Low Jitter - Good phase noise characteristics
Pletronics Inc. certifies this device is in accordance with the
RoHS 6/6 (2002/95/EC) and WEEE (2002/96/EC) directives.
Pletronics Inc. guarantees the device does not contain the following:
Cadmium, Hexavalent Chromium, Lead, Mercury, PBB’s, PBDE’s
Weight of the Device: 6.2 grams
Moisture Sensitivity Level: 1 As defined in J-STD-020C
Second Level Interconnect code: e1
Absolute Maximum Ratings:
Parameter
V
CC
Supply Voltage
Vi
Vo
Input Voltage
Output Voltage
Unit
-0.5V to +7.0V
-0.5V to V
CC
+ 0.5V
-0.5V to V
CC
+ 0.5V
Reliability
: Environmental Compliance
Parameter
Vibration
Shock
Solderability
Thermal Shock
Condition
10 to 2000 Hz / 10 g
2000 g, 0.3 mS, ½ sine
MIL-STD-883 Method 2003
MIL-STD-883 Method 1011, Condition A
Product information is current as of publication date. The product conforms
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necessarily include testing of all parameters.
Copyright © 2007, Pletronics Inc.
Stratum 3
Oven Controlled Oscillators
March 2007
Part Number:
OHM4
048052
LKST3
000
- 19.44M
-XX
Internal code or blank
Frequency MHZ
(Standards Shown)
12.800 16.384 19.440
20.000 40.000
Electronic Frequency Control
000
= No EFC (Standard)
020
= _ 2.0 ppm minimum
+
040
= _ 4.0 ppm minimum
+
150
= _ 15.0 ppm minimum
+
999
= _ 4.0 ppm with 0 to 10K ohm
+
Stratum 3
Supply Voltage
048052
= 5.0V _ 0.20V operation
+
031035
= 3.3V _ 0.20V operation
+
Series Model
Part Marking:
PLE
OHM4050c
fff.fff
M
ymdannn
or
PLE
OHM403c
fff.fff
M
ymdannn
Where:
c
= N for no EFC, R for resistor, V for voltage
fff.fff
= Frequency in MHz
Ymda
= Date code (Year Month Day plus internal code)
nnn
= Device number
Standard values are listed, consult Pletronics Inc. for other options. Specifications such as frequency
stability and operating temperature range, etc. are not identified from the marking. External
packaging labels and packing list will correctly identify the ordered Pletronics part number.
Codes for Date Code YMD
Code
6
7
2006
2007
Year
Code
Month
Code
Day
Code
Day
Code
Day
1
1
D
13
T
25
A
JAN
2
2
E
14
U
26
B
FEB
8
2008
C
MAR
3
3
F
15
V
27
9
2009
D
APR
4
4
G
16
W
28
E
MAY
5
5
H
17
X
29
0
2010
F
JUN
6
6
J
18
Y
30
1
2011
G
JUL
7
7
K
19
Z
31
H
AUG
8
8
L
20
2
2012
J
SEP
9
9
M
21
K
OCT
A
10
N
22
L
NOV
B
11
P
23
M
DEC
C
12
R
24
www.pletronics.com
425-776-1880
2
Stratum 3
Oven Controlled Oscillators
March 2007
Specification for 3.30V and 5.00V +0.20V over the specified temperature range
_
Item
Frequency Range
Frequency Accuracy vs.
Temperature, Power Supply,
Load and 15 years aging
Frequency Stability for 24 hours
vs. Temperature, Power Supply
and Load
Short Term Stability
Min
10
Max
40
Unit
MHz
ppm
Condition
See list of standard frequencies
-4.6
+4.6
-0.28
+0.28
ppb
-0.5
-0.05
+0.5
+0.05
+1.0
-70
-100
-130
-140
30
CMOS
ppb
ppb
ppm
dBc/Hz
0.1 second to 30 seconds
for 1 second
Initial Calibration
Phase Noise
1 Hz
10 Hz
100 Hz
1,000Hz
-1.0
--
--
--
--
--
Warmup
Output Waveform
Output High Level
Output Low Level
Output Symmetry
T
rise
and T
fall
Power Supply Current
sec
within specification after turn on at 0
o
C
0.5
--
45
--
--
--
0.4
55
7
160
70
V
V
%
nS
mA
mA
mA
mA
mA
o
o
Below V
CC
See Load Circuit
Cload = 45 pF
at 50% of V
CC
10% to 90% of V
CC
Vcc = 3.3V
Vcc = 5.0V
Vcc = 3.3V
Vcc = 5.0v
for 30 seconds maximum
at +30
o
C
at -20
o
C
--
110
70
Warmup
Operating Temperature Range
Storage Temperature Range
--
-40
-65
250
+85
+125
C
C
www.pletronics.com
425-776-1880
3
Stratum 3
Oven Controlled Oscillators
March 2007
Load Circuit and Test Waveform
Vhigh
90% * Vcc
50% * Vcc
10% * Vcc
Vlow
Ground
Trise
Symmetry
Tfall
ESD Rating
Model
Human Body Model
Charged Device Model
Minimum Voltage
2000
2000
Conditions
MIL-STD-883 Method 3115
JESD 22-C101
Package Labeling
Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Courier New
Bar code is 39-Full ASCII
Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Arial
www.pletronics.com
425-776-1880
4
Stratum 3
Oven Controlled Oscillators
March 2007
PCB Mounting (typical for lead free processing)
Hand soldering is recommended
at 245
o
C
+ 5
o
C for 5 seconds maximum per pin
_
Mechanical:
Inches
A
B
C
D
1
E
1
F
1
Cover:
Kovar
Electroless Nickel Plated
1
μinch
(25
μm)
typical
Resistance welded to base
Label:
Laser Engraved
Base:
Kovar
Glass to metal sealed leads
Pin 7 Connected to case
– or –
Not to scale
G
1
H
I
1
J
1
0.800 +0.005
_
0.52 +0.005
_
0.315 max
0.250
0.020
0.040 max
0.110
0.300
0.600
0.100
1
mm
20.3 max
13.2 max
8.00 max
6.35
0.51
1.0 max
2.79
7.62
15.24
2.53
White Kapton with Black Letters
PLE
Nominal dimension
Pin
1
Function
EFC
Note
Connected to Ground (standard)
–OR–
10 K ohm to ground
–OR–
0.5 to Vsupply control voltage, depends on option ordered.
Use the 30% value for initial operation
7
8
14
Ground (GND)
Output
Supply Voltage
(V
CC
)
Recommend connecting appropriate power supply bypass capacitors as close as
possible.
Layout and application information
For Optimum Jitter Performance, Pletronics recommends:
•
Minimize air flow over the oscillator
•
Stabilize the power supply voltage for best performance.
www.pletronics.com
425-776-1880
5
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