IDTTM/ICSTM PC MAIN CLOCK

1397—11/08/10

ICS9LP525-2

PC MAIN CLOCK

4

ICS9LP525-2 is compliant Intel CK505 Yellow Cover specification. This clock synthesizer provides a single chip solution for Intel desktop

chipsets.

ICS9LP525-2 is driven with a 14.318MHz crystal. It also provides a tight ppm accuracy output for Serial ATA and PCI-Express

support.

General Description

Block Diagram

Power Groups

VDD

GND

41, 47

44

16

15

12

11

9

11

53

50

2

8

Pin Number

Description

Master Clock, Analog

CPUCLK

26, 31, 37

23, 34

SRCCLK

20

19

USB 48

Xtal, REF

PCICLK

PLL3/SE

DOT 96Mhz

REF

CPU(1:0)

CPU PLL1

SS

OSC

REF

SRC(7:3)

PLL2

Non-SS

PLL3

SS

7

SRC8/ITP

PCI(5:0)

SRC2/SATA

SRC1/SE(2:1)

SE Outputs

SATA

DOT96MHz

PCI33MHz

SRC

SRC

SRC_MAIN

PCI33MHz

Differential Output

SRC0/DOT96

48MHz

48MHz

CPU

FSLA

CKPWRGD/PD#

PCI_STOP#

CPU_STOP#

CR#_(A:F)

SRC5_EN

ITP_EN

FSLC/TESTSEL

FSLB/TESTMODE

Control

Logic

X1

X2