SM5545GEX Datasheet, PDF (6/8 Pages) Pletronics, Inc. – 1.8 V CMOS Clock Oscillators

SM55G Series 1.8 V
CMOS Clock Oscillators
June 2007
Mechanical:
Inches
mm
A 0.197 +_0.006 5.00 +_0.15
B 0.126 +_0.006
C 0.045 +_0.004
D¹ 0.048
E¹ 0.100
F¹ 0.004
G¹ 0.050
H¹ 0.055
I¹ 0.024
Not to Scale
Contacts :
Gold 11.8 μinches
1 _{Typical dimensions}
J¹ 0.004
K¹ 0.008
0.3 μm minimum over Nickel 50 to 350 μinches 1.27 to 8.89 μm
3.20 +_0.15
1.15 +_0.10
1.23
2.54
0.10
1.27
1.40
0.60
0.10R
0.020R
Pad Function
1 Output
Enable/Disable
2 Ground (GND)
3 Output
4 Supply Voltage
(V_CC)
Note
When this pad is not connected the oscillator shall operate.
When this pad is logic low the output will be inhibited (high impedance state.)
Recommend connecting this pad to V_CC if the oscillator is to be always on.
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.
www.pletronics.com
425-776-1880
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