ICS9120-52 Datasheet, PDF (2/5 Pages) Integrated Circuit Systems – Frequency Generator for CD-ROM Systems

ICS9120-52
Pin Descriptions
PIN
NUMBER
1
2
3
4
5
6
7
8
PIN
NAME
X1
VDD
GND
20M
CLK1
40M
FS
X2
TYPE
DESCRIPTION
Input
Power
Power
Output
Output
Output
Input
Output
Crystal or external clock source. Has feedback bias for crystal.
+Power supply input.
Ground return for Pin 2.
20 MHz fixed output clock.
33.8/42.83 MHz selectable clock output.
40 MHz fixedoutput clock.
Input selector for CLK1.
Crystal output drive.
2