PE37T Series 3.3 V
PECL Clock Oscillators
January 2008
Mechanical:
Inches
mm
9.90 +_0.25
13.97 +_0.25
4.95 max
0.66
A
B
C
0.390 +_0.010
0.550 +_0.010
0.195 max
D1 0.026 typ.
E1 0.050
1.27
F1
0.028 R
0.72 R
4.57
G1 0.180
H1 0.100
Cover:
Base:
Centered on the base
304 Stainless Steel
0.010 inch (0.25mm)
Electroless Nickel Plated
1 µinch (25 µm) typical FR4 PCB
Label:
White Kapton with Black Letters
–or--
Blue Epoxy heat cure ink covering
top with laser marked lettering
Solder masked
2.54
All via holes tented on bottom
Copper Clad 670 µinch (17 µm)
Nickel plated 118 µinch (3 µm)
Gold plated 0.8 µinch (0.02 µm)
Typical thicknesses
I1
0.050
0.015
1.27
J1
0.38
K1 0.380
9.65
Pin 3 Ground plane is typical
Not to scale
•
•
The package is not hermetically sealed.
The sides are intentionally left open to permit cleaning material to freely flow in the package, thus
minimizing the accumulation of contaminants during cleaning processes.
•
The internal part of the package must be thoroughly dry before operating.
Pad
Function
Note
1
Output
Enable/Disable
When this pad is not connected the oscillator shall operate.
When this pad is <0.60 volts, the output will be in a fixed state
Recommend connecting this pad to VCC if the oscillator is to be always on.
2
3
4
No connect
Ground (GND)
Output
There is no internal connection to this pad
Logic high when disabled
Logic low when disabled
Both outputs must be terminated and biased for proper
operation. The ideal termination is 50 ohms connected
to 2.0V below the Supply Voltage.
5
6
Output*
Supply Voltage
(VCC)
Recommend connecting appropriate power supply bypass capacitors as close as
possible.
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425-776-1880
6
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