SM55L Series 1.8 V
CMOS Clock Oscillators
June 2013
• Pletronics’ SM55 Series is a quartz crystal
controlled precision square wave generator with a
CMOS output.
• The package is designed for high density surface
m ount designs.
• This is a low cost m ass produced oscillator.
• Tape and Reel or cut tape packaging is available.
•
•
•
•
0.5 to 50 MHz
3.2 x 5 m m LCC Ceram ic Package
Enable/Disable Function
Disable function includes low standby power
m ode
• Low Jitter
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:
Cadm ium , Hexavalent Chrom ium , Lead, Mercury, PBB’s, PBDE’s
W eight of the Device: 0.064 gram s
Moisture Sensitivity Level: 1 As defined in J-STD-020C
Second Level Interconnect code: e4
Absolute Maximum Ratings:
Parameter
V
CC
Supply Voltage
Vi
Vo
Io
Input Voltage
Output Voltage
Output Current
Unit
-0.5V to +7.0V
-0.5V to V
CC
+ 0.5V
-0.5V to V
CC
+ 0.5V
+25 m A to -25 m A
Thermal Characteristics
The m axim um die or junction tem perature is 155
o
C
The therm al resistance junction to board is 30 to 50
o
C/W att depending on the solder pads, ground plane
and construction of the PCB.
P roduct inform ation is current as of publication date. T he product conform s
Copyright © 2010 Pletronics
Inc.
to specifications per the term s of the P letronics standard warranty. Production
processsing does not necessarily include testing of all param eters.
SM55L Series 1.8 V
CMOS Clock Oscillators
June 2013
Part Number:
SM 55
10
L
E
X
-24.0M
-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
Supply Voltage V
CC
X
= 1.8V 10%
Optional Enhanced OTR
Blank
= Tem p. range -10 to +70
o
C
C
= Tem p. range -20 to +70
o
C
E
= Tem p. range -40 to +85
o
C
Series Model
Frequency Stability
10
= 10 ppm
Series Model
Part Marking and Legend:
P
ff.fff
M
C
YMDxx
P
ff.fff
M
YMD
All other
= Pletronics
= Frequency in MHz
= Date of Manufacture (year-m onth-day)
m arking is internal factory codes
Specifications such as frequency stability, supply voltage and operating tem perature range, etc. are
not identified from the m arking. External packaging labels and packing list will correctly identify the
ordered Pletronics part num ber.
Codes for Date Code YM D
Code
0
Code
A
1
2
3
4
B
C
D
E
F
G
H
J
K
L
M
Year
2010 2011 2012 2013 2014
Month
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Code
Day
Code
Day
1
1
H
17
2
2
J
18
3
3
K
19
4
4
L
20
5
5
M
21
6
6
N
22
7
7
P
23
8
8
R
24
9
9
T
25
A
10
U
26
B
11
V
27
C
12
W
28
D
13
X
29
E
14
Y
30
F
15
Z
31
G
16
www.pletronics.com
425-776-1880
2
SM55L Series 1.8 V
CMOS Clock Oscillators
June 2013
Electrical Specification for 1.80V +10% over the specified temperature range
_
Item
Frequency Range
Frequency Accuracy “10"
Frequency Accuracy “05"
Output Waveform
Output High Level
Output Low Level
Output Symmetry
Enable/Disable Internal Pull-up
V disable
V enable
Output leakage
V
OUT
= V
CC
V
OUT
= 0V
Standby Current I
CC
Enable time
Disable time
Start up time
Operating Temperature Range
90
-
45
50
-
70
-10
-10
-
-
-
-
-10
-20
-40
Storage Temperature Range
Output T
RISE
and T
FALL
-55
-
Min
0.5
-10
-5
Max
50
+10
+5
CMOS
-
10
55
-
30
-
+10
+10
10
3
100
3
+70
+70
+85
+125
5.0
%
%
%
Kohm
%
%
uA
uA
uA
mS
nS
mS
o
o
o
o
Unit
MHz
ppm
ppm
Condition
For all supply voltages, load changes, and
temperature
of V
CC
(See load circuit)
at 50% point of V
CC
(See load circuit)
to V
CC
of V
CC
applied to pin 1
Pin 1 low, device disabled
Time for output to reach the specified
frequency and the output to turn on
Time for output to reach a high Z state
Time for output to reach specified frequency
Standard Temperature Range
Extended Temperature Range
Extended Temperature Range
“
C”
Option
“
E”
Option
C
C
C
C
nS
< 50 MHz
C
LOAD
= 15 pF
20% to 80% of V
CC
See Load Circuit
C
LOAD
= 15 pF
V
CC
Supply Current (I
CC
)
-
-
5.0
6.5
Typical
mA
mA
Units
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
at 25.0 MHz
at 50.0 MHz
Condition
at 25.0MHz
at 25.0MHz
at 25.0MHz
at 25.0MHz
at 25.0MHz
Phase Noise
at 10 Hz
at 100 Hz
at 1 kHz
at 10 kHz
at 100 kHz
-100
-131
-152
-160
-161
Specifications with Pin 1 E/D open circuit
www.pletronics.com
425-776-1880
3
SM55L Series 1.8 V
CMOS Clock Oscillators
June 2013
Load Circuit and Test Waveform
Reliability
:
Parameter
Environmental Com pliance
Condition
MIL-STD-883 Method 2002, Condition B
MIL-STD-883 Method 2007, Condition A
MIL-STD-883 Method 2003
MIL-STD-883 Method 1011, Condition A
Mechanical Shock
Vibration
Solderability
Thermal Shock
ESD Rating
Model
Human Body Model
Charged Device Model
Minimum Voltage
1500
1000
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
SM55L Series 1.8 V
CMOS Clock Oscillators
June 2013
Mechanical:
Inches
A
B
C
D
1
E
1
F
1
G
1
H
1
I
1
J
1
Not to Scale
1
mm
5.00 _ 0.15
+
3.20 _ 0.15
+
1.15 _ 0.10
+
1.23
2.54
0.10
1.27
1.40
0.60
0.10R
0.020R
0.197 _ 0.006
+
0.126 _ 0.006
+
0.045 _ 0.004
+
0.048
0.100
0.004
0.050
0.055
0.024
0.004
0.008
Typical dimensions
K
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
1
Function
Output
Enable/Disable
Ground (GND)
Output
Supply Voltage
(V
CC
)
Note
When this pad is not connected the oscillator shall operate.
When this pad is logic low the output will be inhibited (high impedance state.)
Recommend connecting this pad to V
CC
if the oscillator is to be always on.
2
3
4
Recommend connecting appropriate power supply bypass capacitors as close as
possible.
Layout and application information
For Optim um Jitter Perform ance, Pletronics recom m ends:
•
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 m agnetic field such as a high frequency switching power supply
•
do not place near piezoelectric buzzers or m echanical fans.
www.pletronics.com
425-776-1880
5
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