ICS952606 Datasheet, PDF (4/20 Pages) Integrated Circuit Systems – Programmable Timing Control Hub for Next Gen P4 processor

Integrated
Circuit
Systems, Inc.
ICS952606
General Description
ICS952606 is a 48 pin clock chip following Intel CK409 Yellow Cover specification. This clock synthesizer provides a single
chip solution for next generation P4 Intel processors and Intel chipsets. ICS952606 is driven with a 14.318MHz crystal. It
generates CPU outputs up to 200MHz. It also provides a tight ppm accuracy output for Serial ATA support.
Block Diagram
X1
XTAL
X2
PLL2
Frequency
Dividers
SCLK
SDATA
VTTPWRGD#
PD#
FS_A
FS_B
Control
Logic
Programmable
Spread
PLL1
Programmable
Frequency
Dividers
STOP
Logic
48MHz, USB, DOT, VCH
REF (1:0)
CPUCLKT (1:0)
CPUCLKC (1:0)
SRCCLKT0
SRCCLKC0
3V66(3:0)
PCICLK_F (2:0)
PCICLK (5:0)
CPUCLKT_ITP
CPUCLKC_ITP
I REF
Power Groups
Pin Number
VDD
GND
3
6
27
28
10,16
11,17
34
37
48
47
24
23
--
47
40
43
Description
Xtal, Ref
3V66 [0:3]
PCICLK outputs
SRCCLK outputs
Master clock, CPU Analog
48MHz, Fix Digital, Fix Analog
IREF
CPUCLK clocks
0717F—06/10/05
4