2

ICS9120-56

Pin Descriptions for ICS9120-56

PIN

NUMBER

PIN

NAME

TYPE

DESCRIPTION

1

X1

Input

Crystal or external clock source. Has feedback bias for crystal, and internal

crystal load capacitors to GND.

2

VDD

Power

+Power supply input.

3

GND

Power

Ground return for Pin 2.

4

CLK1

Output

40.00 M Hz clock output.

5

CLK2

Output

22.5 MHz output clock.

6

CLK3

Output

20.00 M Hz output clock.

7

REF

Output

Reference clock

8

X2

Output

Crystal output drive, includes internal crystal load capacitor to GND.