ICS9120-53 Datasheet, PDF (2/5 Pages) Integrated Circuit Systems – Frequency Generator for CD-ROM Systems

ICS9120-53
Pin Descriptions
PIN
PIN
NUMBER NAME
1 X1
2 VDD
3 GND
4 20M
5 CLK1
6 40M
7 FS
8 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.
12 MHz fixed output clock.
33.8/42.83 MHz selectable clock output.
24 MHz fixedoutput clock.
Input selector for CLK1.
Crystal output drive.
2