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SM7720HEX Datasheet(PDF) 6 Page - Pletronics, Inc.

Part No. SM7720HEX
Description  1.8 V CMOS Clock Oscillators
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Maker  PLETRONICS [Pletronics, Inc.]
Homepage  http://www.pletronics.com
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 6 page
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SM77H Series 1.8 V
CMOS Clock Oscillators
May 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
The detents “L” 4 each on package end
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 :
Gold 11.8 µinches
0.3 µm minimum over Nickel 50 to 350 µinches
1.27 to 8.89 µm
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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