ICS9LPRS545 Datasheet, PDF (4/17 Pages) Integrated Circuit Solution Inc – 48-pin CK505 for Intel Systems

Integrated
Circuit
Systems, Inc.
ICS9LPRS545
Datasheet
General Description
ICS9LPRS545 is compliant to the Intel CK505 Yellow Cover specification. This clock synthesizer provides a single chip
solution for Intel desktop chipsets. ICS9LPRS545 is driven with a 14.318MHz crystal. It also provides a tight ppm accuracy
output for Serial ATA and PCI-Express support.
Block Diagram
X1
REF
X2 ^OSC
CPU PLL1 ^CPU
SS
SRC = SRC_MAIN
PCI33MHz
PLL3
Non-SS 25MHz
FSLA
CKPWRGD/PD#
PCI_STOP#
CPU_STOP#
CR#_(A,C:D)
SRC5_EN
ITP_EN
FSLC/TESTSEL
FSLB/TESTMODE
Control
Logic
PLL2
Non-SS
SATA
DOT96MHz
48MHz
REF
CPU(1:0)
SRC8/ITP
SRC(7,5:3)
PCI(5:4,0)
SE1 (25MHz)
SRC2/SATA
SRC0/DOT96
48MHz
Power Groups
Pin Number
VDD
33
39
30, 21
13
9
6
45
2
GND
36
36
18, 27
15
12
8
42
5
1479A—07/28/09
Description
CPU Outputs
CPU/SRC Analog
SRC Outputs
PLL3 25MHz
DOT96 outputs
USB 48 Output/Analog
Xtal, REF
PCI outputs
4