ICS952601 Datasheet, PDF (1/25 Pages) Integrated Circuit Systems – Programmable Timing Control Hub™ for Next Gen P4™ processor

DATASHEET
Programmable Timing Control Hub^TM for Next
Gen P4^TM Processor
ICS952601
Recommended Application:
Features/Benefits:
CK409 clock, Intel Yellow Cover part
• Supports tight ppm accuracy clocks for Serial-ATA.
Output Features:
• Supports spread spectrum modulation, 0 to -0.5%
down spread.
• 3 - 0.7V current-mode differential CPU pairs
• 1 - 0.7V current-mode differential SRC pair
• 7 - PCI (33MHz)
• 3 - PCICLK_F, (33MHz) free-running
• 1 - USB, 48MHz
• 1 - DOT, 48MHz
• Supports CPU clks up to 400MHz in test mode.
• Uses external 14.318MHz crystal, external crystal load
caps are required for frequency tuning.
• Supports undriven differential CPU, SRC pair in PD#
and CPU_STOP# for power management.
• 2 - REF, 14.318MHz
• 4 - 3V66, 66.66MHz
• 1 - VCH/3V66, selectable 48MHz or 66MHz
Pin Configuration
Key Specifications:
• CPU/SRC outputs cycle-cycle jitter < 125ps
• 3V66 outputs cycle-cycle jitter < 250ps
• PCI outputs cycle-cycle jitter < 250ps
• CPU outputs skew: < 100ps
• +/- 300ppm frequency accuracy on CPU & SRC clocks
Functionality
CPU
B6b5 FS_A FS_B MHz
0
0 100
0 MID Ref/N₀
0
0
1 200
1
0 133
1
1 166
1 MID Hi-Z
0
0 200
1
0
1
1 400
0 266
1
1 333
SRC
MHz
100/200
Ref/N₁
100/200
100/200
100/200
Hi-Z
100/200
100/200
100/200
100/200
3V66 PCI
MHz MHz
66.66 33.33
Ref/N₂ Ref/N₃
66.66 33.33
66.66 33.33
66.66 33.33
Hi-Z Hi-Z
66.66 33.33
66.66 33.33
66.66 33.33
66.66 33.33
REF
MHz
14.318
Ref/N₄
14.318
14.318
14.318
Hi-Z
14.318
14.318
14.318
14.318
USB/DOT
MHz
48.00
Ref/N₅
48.00
48.00
48.00
Hi-Z
48.00
48.00
48.00
48.00
REF0 1
REF1 2
VDDREF 3
X1 4
X2 5
GND 6
PCICLK_F0 7
PCICLK_F1 8
PCICLK_F2 9
VDDPCI 10
GND 11
PCICLK0 12
PCICLK1 13
PCICLK2 14
PCICLK3 15
VDDPCI 16
GND 17
PCICLK4 18
PCICLK5 19
PCICLK6 20
PD# 21
3V66_0 22
3V66_1 23
VDD3V66 24
GND 25
3V66_2 26
3V66_3 27
SCLK 28
56 FS_B
55 VDDA
54 GNDA
53 GND
52 IREF
51 FS_A
50 CPU_STOP#
49 PCI_STOP#
48 VDDCPU
47 CPUCLKT2
46 CPUCLKC2
45 GND
44 CPUCLKT1
43 CPUCLKC1
42 VDDCPU
41 CPUCLKT0
40 CPUCLKC0
39 GND
38 SRCCLKT
37 SRCCLKC
36 VDD
35 Vtt_PWRGD#
34 VDD48
33 GND
32 48MHz_DOT
31 48MHz_USB
30 SDATA
29 3V66_4/VCH
56-pin SSOP & TSSOP
IDT^TM Progammable Timing Control Hub^TM for Next Gen P4^TM Processor
1
701J—01/25/10