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参数资料
| 型号： | SM7745MW-FREQ-T500 |
| 厂商： | PLETRONICS INC |
| 元件分类： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 0.8 MHz - 69.9 MHz, CMOS OUTPUT |
| 封装： | ROHS COMPLIANT, CERAMIC, LCC-4 |
| 文件页数： | 6/8页 |
| 文件大小： | 144K |
| 代理商： | SM7745MW-FREQ-T500 |
SM77M Series 2.5 V
CMOS Clock Oscillators
Feb 2008
www.pletronics.com 425-776-1880
6
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
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 :
Gold 11.8
μ
inches 0.3
μ
m minimum over Nickel 50 to 350
μ
inches 1.27 to 8.89
μ
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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