SM55J Series 1.8 V

CMOS Clock Oscillators

March 2013

www.pletronics.com

425-776-1880

6

Mechanical:

Inches

mm

A

0.197 +

_0.006

5.00 +

_0.15

B

0.126 +

_0.006

3.20 +

_0.15

C

0.045 +

_0.004

1.15 +

_0.10

D

0.048

1.23

1

E

0.100

2.54

1

F

0.004

0.10

1

G

0.050

1.27

1

H

0.055

1.40

1

Not to Scale

Typical dimensions

1

I

0.024

0.60

1

J

0.004

0.10R

1

K

0.008

0.020R

1

Contacts :

Gold 11.8 to 39.4 µinches (0.3 to 1.0 µm) over Nickel 50 to 350 µinches (1.27 to 8.89 µm)

Pad

Function

Note

1

Output

Enable/Disable

When this pad is not connected the oscillator shall operate.

When this pad is logic low the output will be inhibited (high impedance state.)

CC

Recommend connecting this pad to V

if the oscillator is to be always on.

2

Ground (GND)

3

Output

4

Supply Voltage

CC

(V )

Recommend connecting appropriate power supply bypass capacitors as close as

possible.

Layout and application information

For Optim um Jitter Perform ance, Pletronics recom m ends:

•

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 m agnetic field such as a high frequency switching power supply

•

do not place near piezoelectric buzzers or m echanical fans.