MDS 728 B

2

Revision 012505

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ICS728

Pin Assignment

Pin Descriptions

X1

VDD

VI N

GND

GND

CL K

DC

X2

1

2

3

4

8

7

6

5

8 - pi n ( 1 50 mil) SOI C

Pin

Number

Pin

Name

Pin

Type

Pin Description

1

XI

Input

Crystal connection. Connect to the external pullable crystal.

2

VDD

Power

Connect to +3.3 V (0.01uf decoupling capacitor recommended).

3

VIN

Input

Voltage input to VCXO. Zero to 3.3 V analog input which controls the

oscillation frequency of the VCXO.

4

GND

Power

Connect to ground.

5

CLK

Output

Clock output.

6

DC

__

Do not connect to this pin

7

GND

Power

Connect to ground.

8

X2

Input

Crystal connection. Connect to the external pullable crystal.