Product information is current as of publication date. The product conforms Copyright © 2007, Pletronics Inc.
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necessarily include testing of all parameters.
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 Unit
VCC Supply Voltage -0.5V to +7.0V
Vi Input Voltage -0.5V to VCC + 0.5V
Vo Output Voltage -0.5V to VCC + 0.5V
Reliability: Environmental Compliance
Parameter Condition
Vibration 10 to 2000 Hz / 10 g
Shock 2000 g, 0.3 mS, ½ sine
Solderability MIL-STD-883 Method 2003
Thermal Shock MIL-STD-883 Method 1011, Condition A
Stratum 3
Oven Controlled Oscillators
March 2007
www.pletronics.com 425-776-1880 2
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 PLE Where: c= N for no EFC, R for resistor, V for voltage
OHM4050c or OHM403c fff.fff = Frequency in MHz
fff.fff M fff.fff M Ymda = Date code (Year Month Day plus internal code)
ymdannn ymdannn 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 8 9 0 1 2
Year 2006 2007 2008 2009 2010 2011 2012
Code A B C D E F G H J K L M
Month JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Code123456789ABC
Day 123456789101112
Code D E F G H J K L M N P R
Day 13 14 15 16 17 18 19 20 21 22 23 24
Code T U V W X Y Z
Day 25 26 27 28 29 30 31
Stratum 3
Oven Controlled Oscillators
March 2007
www.pletronics.com 425-776-1880 3
Specification for 3.30V and 5.00V +_ 0 .20V over the specified temperature range
Item Min Max Unit Condition
Frequency Range 10 40 MHz See list of standard frequencies
Frequency Accuracy vs.
Temperature, Power Supply,
Load and 15 years aging
-4.6 +4.6 ppm
Frequency Stability for 24 hours
vs. Temperature, Power Supply
and Load
-0.28 +0.28 ppb
Short Term Stability -0.5 +0.5 ppb 0.1 second to 30 seconds
-0.05 +0.05 ppb for 1 second
Initial Calibration -1.0 +1.0 ppm
Phase Noise 1 Hz
10 Hz
100 Hz
1,000Hz
--
--
--
--
-70
-100
-130
-140
dBc/Hz
Warmup -- 30 sec within specification after turn on at 0oC
Output Waveform CMOS
Output High Level 0.5 -- V Below VCC See Load Circuit
Cload = 45 pF
Output Low Level -- 0.4 V
Output Symmetry 45 55 % at 50% of VCC
Trise and Tfall -- 7 nS 10% to 90% of VCC
Power Supply Current
-- 160 mA Vcc = 3.3V at -20oC
70 mA Vcc = 5.0V
-- 110 mA Vcc = 3.3V at +30oC
70 mA Vcc = 5.0v
Warmup -- 250 mA for 30 seconds maximum
Operating Temperature Range -40 +85 oC
Storage Temperature Range -65 +125 oC
Stratum 3
Oven Controlled Oscillators
March 2007
www.pletronics.com 425-776-1880 4
Trise
10% * Vcc
Ground
Vlow
50% * Vcc
90% * Vcc
Vhigh
Tfall
Symmetry
Load Circuit and Test Waveform
ESD Rating
Model Minimum Voltage Conditions
Human Body Model 2000 MIL-STD-883 Method 3115
Charged Device Model 2000 JESD 22-C101
Package Labeling
Label is 1" x 2.6" (25.4mm x 66.7mm) Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Courier New Font is Arial
Bar code is 39-Full ASCII
Stratum 3
Oven Controlled Oscillators
March 2007
www.pletronics.com 425-776-1880 5
PLE
PCB Mounting (typical for lead free processing)
Hand soldering is recommended at 245oC +_ 5oC for 5 seconds maximum per pin
Mechanical:
Inches mm
Cover:
Kovar
Electroless Nickel Plated
1 μinch (25 μm) typical
Resistance welded to base
Label:
Laser Engraved – or –
White Kapton with Black Letters
Base:
Kovar
Glass to metal sealed leads
Pin 7 Connected to case
Not to scale
A 0.800 +_0.005 20.3 max
B 0.52 +_0.005 13.2 max
C 0.315 max 8.00 max
D10.250 6.35
E10.020 0.51
F10.040 max 1.0 max
G10.110 2.79
H 0.300 7.62
I10.600 15.24
J10.100 2.53
1 Nominal dimension
Pin Function Note
1 EFC 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 Ground (GND)
8 Output
14 Supply Voltage
(VCC)
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.
Stratum 3
Oven Controlled Oscillators
March 2007
www.pletronics.com 425-776-1880 6
IMPORTA NT NOTICE
Pletronics Incorporated (PLE) reserves the right to make corrections, improvements, modifications and
other changes to this product at anytime. PLE reserves the right to discontinue any product or service
without notice. Customers are responsible for obtaining the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to
PLE’s terms and conditions of sale supplied at the time of order acknowledgment.
PLE warrants performance of this product to the specifications applicable at the time of sale in accordance
with PLE’s limited warranty. Testing and other quality control techniques are used to the extent PLE
deems necessary to support this warranty. Except where mandated by specific contractual documents,
testing of all parameters of each product is not necessarily performed.
PLE assumes no liability for application assistance or customer product design. Customers are
responsible for their products and applications using PLE components. To minimize the risks associated
with the customer products and applications, customers should provide adequate design and operating
safeguards.
PLE products are not designed, intended, authorized or warranted to be suitable for use in life support
applications, devices or systems or other critical applications that may involve potential risks of death,
personal injury or severe property or environmental damage. Inclusion of PLE products in such
applications is understood to be fully at the risk of the customer. Use of PLE products in such applications
requires the written approval of an appropriate PLE officer. Questions concerning potential risk
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Contacting Pletronics Inc.
Pletronics Inc. Tel: 425-776-1880
19013 36th Ave. West Fax: 425-776-2760
Lynnwood, WA 98036-5761 USA E-mail: ple-sales@pletronics.com
URL: www.pletronics.com
Copyright © 2006, 2007, Pletronics Inc.