Product information is current as of publication date. The product conforms Copyright © 2018, Pletronics Inc.
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necessarily include testing of all parameters.
SM44T Series 3.3 V
CMOS Clock Oscillators
November 2018
• Pletronics’ SM44 Series is a quartz crystal
controlled precision square wave generator with a
CMOS output.
• The package is designed for high density surface
mount designs.
• This is a low cost mass produced oscillator.
• Tape and Reel or cut tape packaging is available.
• 0.8 to 180 MHz
• 2.5 x 3.2 mm LCC Ceramic Package
• Enable/Disable Function
• Disable function
includes low standby power mode
• Low Jitter
Pletronics Inc. certifies this device is in accordance with the
RoHS 6/6 (2011/65/EC) and WEEE (2002/96/EC) directives.
Pletronics Inc. guarantees the device does not contain the following:
Cadm ium, Hexavalent Chromium, Lead, Mercury, PBB’s, PBDE’s
Weight of the Device: 0.041 grams
Moisture Sensitivity Level: 1 As defined in J-STD-020C
Second Level Interconnect code: e4
Absolute Maximum Ratings:
Parameter Unit
CC
V Supply Voltage -0.5V to +7.0V
CC
Vi Input Voltage -0.5V to V + 0.5V
CC
Vo Output Voltage -0.5V to V + 0.5V
Io Output Current +25 mA to -25 mA
Thermal Characteristics
The maximum die or junction temperature is 155 C
o
The thermal resistance junction to board is 40 to 60 C/Watt depending on the solder pads, ground plane
o
and construction of the PCB.
SM44T Series 3.3 V
CMOS Clock Oscillators
November 2018
www.pletronics.com 425-776-1880 2
Part Number:
SM44 45 TEV- 75.0M -XX
Packaging code or blank
T250 = 250 per Tape and Reel
T500 = 500 per Tape and Reel
T1K = 1000 per Tape and Reel
Frequency in MHz
CC
Supply Voltage V
V = 3.3V +_ 10%
Temperature Range
Blank = Temp. range -10 to +70 C
o
C = Temp. range -20 to +70 C
o
E = Temp. range -40 to +85 C
o
Series Model
Frequency Stability
45 = +_ 50 ppm
44 = +_ 25 ppm
20 = +_ 20 ppm
Series Model
Part Marking: Marking legend:
PFF.FFM
CYMDxx
or
PFF.FFM
CYMxxx
P = Pletronics
FF.FFF = Frequency in MHz
YMD or YM = Date of Manufacture (year
and month, or year-month-
day)
All other markings are internal factory codes
Specifications such as frequency stability, supply voltage 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 67890
Code ABCDEFGHJKLM
Year 2016 2017 2018 2019 2020 Month JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Code 123456789ABCDEFG
Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Code HJKLMNPRTUVWXYZ
Day 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
SM44T Series 3.3 V
CMOS Clock Oscillators
November 2018
www.pletronics.com 425-776-1880 3
Electrical Specification for 3.30V +_10% over the specified temperature range
Item Min Max Unit Condition
Frequency Range 0.8 180 MHz
Frequency Accuracy “45"
“44"
“20"
-50
-25
-20
+50
+25
+20
ppm For all supply voltages, load changes, aging for
1 year, shock, vibration and temperatures
Output Waveform CMOS
CC
Output High Level 90 - % of V (See load circuit)
Output Low Level - 10 %
CC
Output Symmetry 45 55 % at 50% point of V
Jitter - 0.6 pS RMS 12 KHz to 20 MHz from the output frequency
- 2.5 pS RMS 10 Hz to 1 MHz from the output frequency
- 100 pS pk-pk @ 25.0 MHz
CC
Enable/Disable Internal Pull-up 50 - Kohm to V
CC
V disable - 30 % of V applied to pad 1
V enable 70 - %
OUT CC
Output leakage V = V -10 +10 uA Pad 1 low, device disabled
OUT
V = 0V -10 +10 uA
CC
Standby Current I - 3 uA
Enable time - 100 nS Time for output to reach a logic state
Disable time - 100 nS Time for output to reach a high Z state
Start up time - 3 mS Time for output to reach specified frequency
Operating Temperature Range -10 +70 C Standard Temperature Range
o
-10 +70 C
oExtended Temperature Range “C” Option
-40 +85 C
oExtended Temperature Range “E” Option
Storage Temperature Range -55 +125 C
o
Typical phase noise plot
for 5 oscillators at
different output
frequencies.
SM44T Series 3.3 V
CMOS Clock Oscillators
November 2018
www.pletronics.com 425-776-1880 4
Electrical Specification for 3.30V +_10% over the specified temperature range
Item Typ Max Unit Condition
RISE FALL LOAD
Output T and T 2.5 5 nS < 35 MHz C = 15 pF
CC
10% to 90% of V
See Load Circuit
1.5 3 nS > 35 MHz and < 70MHz
1 2 nS > 70 MHz
LOAD
4 8 nS < 35 MHz C =30 pF
CC
10% to 90% of V
See Load Circuit
3 5 nS > 35 MHz and < 70MHz
2 3 nS > 70 MHz
CC CC LOAD
V Supply Current (I ) 2 4 mA < 8 MHz C = 15 pF
3 5 mA > 8 MHz and < 16 MHz
4 6 mA > 16 MHz and < 35 MHz
12 18 mA > 35 MHz and < 70MHz
23 36 mA > 70 MHz and < 110MHz
45 70 mA > 110 MHz
LOAD
3 5 mA < 8 MHz C = 30 pF
4 6 mA > 8 MHz and < 16 MHz
6 8 mA > 16 MHz and < 35 MHz
16 22 mA > 35 MHz and < 70MHz
30 43 mA > 70 MHz and < 120MHz
Specifications with Pad 1 E/D open circuit
Load Circuit and Test Waveform
SM44T Series 3.3 V
CMOS Clock Oscillators
November 2018
www.pletronics.com 425-776-1880 5
Reliability: Environmental Compliance
Parameter Condition
Mechanical Shock MIL-STD-883 Method 2002, Condition B
Vibration MIL-STD-883 Method 2007, Condition A
Solderability MIL-STD-883 Method 2003
Thermal Shock MIL-STD-883 Method 1011, Condition A
ESD Rating
Model Minimum Voltage Conditions
Human Body Model 1500 MIL-STD-883 Method 3115
Charged Device Model 1000 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
SM44T Series 3.3 V
CMOS Clock Oscillators
November 2018
www.pletronics.com 425-776-1880 6
Mechanical:
Inches mm
A 0.125 +_0.006 3.20 +_0.15
B 0.098 +_0.006 2.50 +_0.15
C 0.046 max 1.15 max
D 0.008 0.20R
1
E 0.030 0.75
1
F 0.004 0.10
1
G 0.037 0.95
1
Not to Scale
Typical dimensions
1
Contacts :
Gold 11.8 to 39.4 µinches (0.3 to 1.0 µm) over Nickel 50 to 350 µinches (1.27 to 8.89 µm)
Pad Function Note
1 Output
Enable/Disable
When this pad is not connected the oscillator shall operate.
When this pad is logic low the output will be inhibited (high impedance state.)
CC
Recommend connecting this pad to V if the oscillator is to be always on.
2 Ground (GND)
3 Output
4 Supply Voltage
CC
(V )
Recommend connecting appropriate power supply bypass capacitors as close as
possible.
Layout and application information
For Optimum Jitter Performance, Pletronics recommends:
• a ground plane under the device
• no large transient signals (both current and voltage) should be routed under the device
• do not layout near a large magnetic field such as a high frequency switching power supply
• do not place near piezoelectric buzzers or mechanical fans.
SM44T Series 3.3 V
CMOS Clock Oscillators
November 2018
www.pletronics.com 425-776-1880 7
Reflow Cycle (typical for lead free processing)
The part may be reflowed 3 times without degradation.
Tape and Reel: available for quantities of 250 to 1000 per reel, cut tape for < 250
Constant Dimensions Table 1
Tape
Size D0 D1
Min E1 P0 P2 S1
Min
T
Max
T1
Max
8mm
1.5
+0.1
-0.0
1.0
1.75
+_0.1
4.0
+_0.1
2.0
+_0.05
0.6 0.6 0.1
12mm 1.5
16mm 1.5 2.0
+_0.1
24mm 1.5
Variable Dimensions Table 2
Tape
Size
B1
Max
E2 Min F P1 T2
Max
W
Max
Ao, Bo &
Ko
16 mm 12.1 14.25 7.5 +_0.1 8.0 +_0.1 8.0 16.3 Note 1
Note 1: Embossed cavity to conform to EIA-481-B Dimensions in mm Not to scale
REEL DIMENSIONS
A inches 7.0 10.0 13.0
mm 177.8 254.0 330.2
B inches 2.50 4.00 3.75
mm 63.5 101.6 95.3 Tape
Width
C mm 13.0 +0.5 / -0.2
D mm 16.4
+2.0
-0.0
16.4
+2.0
-0.0
16.4
+2.0
-0.0
16.0
Reel dimensions may vary from the above
SM44T Series 3.3 V
CMOS Clock Oscillators
November 2018
www.pletronics.com 425-776-1880 8
IMPORTANT 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, weapons, weapon systems or space 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 applications should be directed to PLE.
PLE does not warrant or represent that any license, either express or implied, is granted under any PLE
patent right, copyright, artwork or other intellectual property right relating to any combination, machine or
process which PLE product or services are used. Information published by PLE regarding third-party
products or services does not constitute a license from PLE to use such products or services or a
warranty or endorsement thereof. Use of such information may require a license from a third party under
the patents or other intellectual property of the third party, or a license from PLE under the patents or other
intellectual property of PLE.
Reproduction of information in PLE data sheets or web site is permissible only if the reproduction is
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Reproduction of this information with alteration is an unfair and deceptive business practice. PLE is not
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Resale of PLE products or services with statements different from or beyond the parameters stated by
PLE for that product or service voids all express and implied warranties for the associated PLE product or
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Contacting Pletronics Inc.
Pletronics Inc. Tel: 425-776-1880
19013 36 Ave. West Fax: 425-776-2760
th
Lynnwood, W A 98036-5761 USA E-mail: ple-sales@pletronics.com
URL: www.pletronics.com
Copyright © 2018 Pletronics Inc.
