MDS 722 A

2

Revision 121404

ICS722

Pin Assignment

Pin Descriptions

X1

VDD

VI N

DC

GND

REFOUT

DC

X2

1

2

3

4

8

7

6

5

IC S 7 2 2

8- P i n ( 1 50 m i l ) S O I 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 (0.01

µf decoupling capacitor recommended).

3

VIN

Input

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

VCXO frequency.

4

GND

Power

Connect to ground.

5

REFOUT

Output

VCXO CMOS level clock output matches the nominal frequency of

the crystal.

6

DC

—

Do not connect anything to this pin.

7

DC

—

Do not connect anything to this pin.

8

X2

Input

Crystal connection. Connect to a external pullable crystal.