SM3344TEW Datasheet, PDF (5/7 Pages) Pletronics, Inc. – SM33T Series 2.5 V CMOS Clock Oscillators

Mechanical:
SM33T Series 2.5 V
CMOS Clock Oscillators
February 2009
4
1
5
3
6
2
Inches
mm
A 0.098 +_0.004 2.50 +_0.10
B 0.079 +_0.004
C 0.039 +_0.004
D¹ 0.008
E¹ 0.028
F¹ 0.004
G¹ 0.031
2.00 +_0.10
1.00 +_0.10
0.20R
0.70
0.10
0.80
Not to Scale
Contacts :
Gold 11.8 µinches
1 _{Typical dimensions}
0.3 µm minimum over Nickel 50 to 350 µinches 1.27 to 8.89 µm
Do not connect pads 5 or pad 6!!!!
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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