PE78D Series 3.3 V

PECL Clock Oscillators

January 2008

www.pletronics.com

425-776-1880

6

Mechanical:

Inches

mm

Cover:

Centered on the base

304 Stainless Steel

0.010 inch (0.25mm)

Electroless Nickel Plated

1 µinch (25 µm) typical

Label:

White Kapton with Black Letters

–or--

Blue Epoxy heat cure ink covering

top with laser marked lettering

FR4 PCB Base:

Solder masked

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

Pin 3 Ground plane is typical

Not to scale

A

0.351 +

_0.003

8.91 +

_0.07

B

0.356 +

_0.005

9.04 +

_0.13

C

0.103 +

_0.005

2.62 +

_0.13

D

1

0.324

8.23

E

1

0.316

8.03

F

1

0.050

1.27

G

1

0.040

1.02

H

1

0.059

1.50

I

1

0.020

0.51

J

1

0.040

1.02

K

1

0.100

2.54

L

1

0.026 typical

0.66

•

The package is not hermetically sealed (the crystal unit inside is 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

No connect

There is no internal connection to this pad

2

Output

Enable/Disable

When this pad is not connected the oscillator shall operate.

When this pad is <0.30 volts, the output will be inhibited (high impedance state.)

Recommend connecting this pad to V

3

Ground (GND)

4

Output

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

Output*

6

Supply Voltage

(V

Recommend connecting appropriate power supply bypass capacitors as close as

possible.