SM77D Series 1.8 V
CMOS Clock Oscillators
Feb 2008
• Pletronics’ SM77D Series is a quartz crystal
controlled precision square wave generator with a
CMOS output.
• The SM77D series will directly interface TTL
devices also.
• 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.
70 to 165 MHz
5 x 7 mm LCC Ceramic Package
Enable/Disable Function
Disable function includes low standby power
mode
• 3
rd
Overtone Crystals used
• Improved circuit to minimize oscillator issues
such as multi-mode output signal.
• Low Jitter
•
Capable of driving up to 15pF capacitive loads
•
•
•
•
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: 0.17 grams
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
Input Voltage
Output Voltage
Unit
-0.5V to +5.0V
-0.5V to V
CC
+ 0.5V
-0.5V to V
CC
+ 0.5V
Thermal Characteristics
The maximum die or junction temperature is 155
o
C
The thermal resistance junction to board is 30 to 50
o
C/Watt depending on the solder pads, ground plane
and construction of the PCB.
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 © 2006, 2007, Pletronics Inc.
SM77D Series 1.8 V
CMOS Clock Oscillators
Feb 2008
Part Number:
SM77
45
D
E
X
-100.0M
-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 _ 5%
+
Optional Enhanced OTR
Blank
= Temp. range -10 to +70
o
C
E
= Temp. range -40 to +85
o
C
Series Model
Frequency Stability
45
= _ 50 ppm
+
44
= _ 25 ppm
+
20
= _ 20 ppm
+
Series Model
Marking Legend:
PLE = Pletronics
FF.FFF
M = Frequency in MHz
YYWW or YWW or
YMD
= Date of Manufacture (year and week, or year-month-day)
All other marking is 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
Year
Code
Month
Code
Day
Code
Day
Code
Day
1
1
D
13
T
25
6
2006
A
JAN
2
2
E
14
U
26
7
2007
B
FEB
3
3
F
15
V
27
8
2008
C
MAR
4
4
G
16
W
28
9
2009
D
APR
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
Part Marking:
PLE SM77
FF.FFF
M
C
YMDXX
or
PLE SM77
FF.FFF
M
C
YYWWXX
or
7XYWWXX
FF.FFF
M
C
PLE
XXX
Legacy Part Numbers:
‘S’
Denoted Symmetry of 45%/55% at 50% of V
CC
. This is now the standard Duty Cycle and is no longer needed
inthe part number. We will still support part numbers with the ‘S’. For example: SM7745DX and SM7745DSX
describe the same specifications and can be used interchangeably by the customer.
Electrical Specification for 1.80V +10% over the specified temperature range
_
www.pletronics.com
425-776-1880
2
SM77D Series 1.8 V
CMOS Clock Oscillators
Feb 2008
Item
Frequency Range
Frequency Accuracy
“45"
“44"
“20"
Output Waveform
Output High Level
Output Low Level
Output Symmetry
Jitter
0.4
-
45
-
-
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
30
-
70
-10
-10
-
-
-
-
-10
- 40
Storage Temperature Range
- 55
Min
70
-50
-25
-20
Max
165
+50
+25
+20
CMOS
-
0.4
55
0.6
2.5
-
30
-
+10
+10
10
2
200
5
+70
+85
+125
V
V
%
pS RMS
pS RMS
Kohm
%
%
uA
uA
uA
mS
nS
mS
o
o
Unit
MHz
ppm
Condition
For all supply voltages, load changes, aging for 1
year, shock, vibration and temperatures
Below V
CC
(See load circuit)
(See load circuit)
at 50% point of V
CC
(See load circuit)
12 KHz to 20 MHz from the output frequency
10 Hz to 1 MHz from the output frequency
to V
CC
of V
CC
applied to pad 1
Pad 1 low, device disabled
Time for output to resume operation
Time for output to reach a high Z state
Time for output to reach specified frequency
Standard Temperature Range
Extended Temperature Range
“E” Option
C
C
C
o
www.pletronics.com
425-776-1880
3
SM77D Series 1.8 V
CMOS Clock Oscillators
Feb 2008
Electrical Specification for 1.80V +10% over the specified temperature range
_
Item
V
OUT
High (V
OH
)
V
OUT
Low (V
OL
)
Output T
RISE
and T
FALL
V
CC
Supply Current
(I
CC
)
Min
0.4
-
-
-
-
-
Typ
0.3
0.3
1.5
21
17
11
Max
-
0.4
2.5
33
27
19
Unit
V
V
nS
mA
mA
mA
Condition
Below V
CC
, I
OH
= +8 mA
I
OL
= - 8 mA
C
LOAD
= 15 pF 20% to 80% of V
CC
(See load circuit)
>125 MHz
>95 MHz and <125 MHz
<95 MHz
C
LOAD
= 15 pF
20% to 80% of V
CC
(See load circuit)
Specifications with Pad 1 E/D open circuit
Load Circuit and Test Waveform
Symmetry
Vhigh
80% * Vcc
50% * Vcc
20% * Vcc
Vlow
Ground
Trise
Tfall
www.pletronics.com
425-776-1880
4
SM77D Series 1.8 V
CMOS Clock Oscillators
Feb 2008
Reliability
: Environmental Compliance
Parameter
Mechanical Shock
Vibration
Solderability
Thermal Shock
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
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
5
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