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參數(shù)資料
| 型號(hào)： | SM7745HE-20.0M |
| 廠商： | PLETRONICS INC |
| 元件分類(lèi)： | XO, clock |
| 英文描述： | OSC 5V SMT 7X5 CMOS |
| 中文描述： | CRYSTAL OSCILLATOR, CLOCK, 20 MHz, CMOS OUTPUT |
| 封裝： | ROHS COMPLIANT, CERAMIC, LCC-4 |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大?。?/td> | 110K |
| 代理商： | SM7745HE-20.0M |
SM77H Series 5.0 V
CMOS Clock Oscillators
April 2010
www.pletronics.com
425-776-1880
6
3
2
4
1
Mechanical:
Inches
mm
A
0.276 +
_0.006
7.00 +
_0.15
B
0.197 +
_0.006
5.00 +
_0.15
C
0.068 +
_0.018
1.73 +
_0.44
D
1
0.038
0.96
E
1
0.200
5.08
F
1
0.004
0.10
G
1
0.050
1.27
H
1
0.055
1.40
The detents “L”, 4 each, on the package ends
are optional
Not to Scale
1 Typical dimensions
I
1
0.024
0.60
J
1
0.004
0.10R
K
1
0.008
0.020R
Contacts (pads) :
Gold 11.8 to 39.4 inches (0.3 to 1.0 m) over Nickel 50 to 350 inches (1.27 to 8.89 m)
Pad
Function
Note
1
Output
Enable/Disable
When this pin is not connected the oscillator shall operate.
When this pin is logic low the output will be inhibited (high impedance state.)
Recommend connecting this pin to V
CC if the oscillator is to be always on.
2
Ground (GND)
3
Output
4
Supply Voltage
(V
CC)
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.
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| SM7745HE-25.0M | 制造商:Pletronics 功能描述:CMOS 5X7 OSC 50PPM 5.0V__Contact Local Pletronics Rep |
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