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參數(shù)資料
| 型號： | SM77H20 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | CMOS Clock Oscillators |
| 中文描述： | CMOS時鐘振蕩器 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 155K |
| 代理商： | SM77H20 |
SM77H Series 1.8 V
CMOS Clock Oscillators
April 2007
www.pletronics.com 425-776-1880
2
PART NUMBER:
SM77
45
H
E
X
-
50.0M
-XX
Part Marking:
PLE SM77
FF.FFF
M
C
YMDXX
Packaging code or blank
T250 = 250 per Tape and Reel
T500 = 500 per Tape and Reel
T1K = 1000 per Tape and Reel
or
PLE SM77
FF.FFF
M
C
YYWWXX
or
7XYWWXX
FF.FFF
M
C
PLE
XXX
Frequency in MHz
Supply Voltage V
CC
X
= 1.8V + 10%
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
6
7
8
9
Year
2006
2007
2008
2009
2010
0
1
2
2011
2012
Code
Month
A
B
C
D
E
F
G
H
J
K
L
M
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Code
Day
Code
Day
Code
Day
1
1
D
13
T
25
2
2
E
14
U
26
3
3
F
15
V
27
4
4
G
16
W
28
5
5
H
17
X
29
6
6
J
7
7
K
19
Z
31
8
8
L
20
9
9
M
21
A
10
N
22
B
11
P
23
C
12
R
24
18
Y
30
Legacy Part Numbers:
‘S’
Denoted Symmetry of 45%/55% at 50% of V
. This is now the standard Duty Cycle and is no longer needed in
the part number. We will still support part numbers with the ‘S’. For example: SM7745HX and SM7745HSX
describe the same specifications and can be used interchangeably by the customer.
-30
Denoted Output Load other than the standard 15 pF. Data sheets now reflect the specifications at all available
loads so this load designation is no longer needed. We will still support part numbers with this load designation.
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