SM7745HEV Datasheet, PDF (6/8 Pages) Pletronics, Inc. – 3.3 V CMOS Clock Oscillators

SM77H Series 3.3 V
CMOS Clock Oscillators
May 2008
Mechanical:
Inches
A 0.276 +_0.006
B 0.197 +_0.006
C 0.068 +_0.018
D¹ 0.038
E¹ 0.200
F¹ 0.004
G¹ 0.050
H¹ 0.055
The detents “L” 4 each on package end
are optional
I¹ 0.024
J¹ 0.004
Not to Scale
1 _{Typical dimensions}
K¹ 0.008
Contacts :
Gold 11.8 µinches 0.3 µm minimum over Nickel 50 to 350 µinches 1.27 to 8.89 µm
mm
7.00 +_0.15
5.00 +_0.15
1.73 +_0.44
0.96
5.08
0.10
1.27
1.40
0.60
0.10R
0.020R
Pad Function
Note
1
Output
When this pin is not connected the oscillator shall operate.
Enable/Disable 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 Recommend connecting appropriate power supply bypass capacitors as close as
(V_CC)
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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