Integrated
Circuit
ICS952606
Systems, Inc.
Programmable Timing Control Hub™ for Next Gen P4™ processor
Recommended Application:
CK409 48-pin part
Output Features:
Features/Benefits:
•
•
Supports tight ppm accuracy clocks for Serial-ATA
Supports spread spectrum modulation, 0 to -0.5%
down spread and +/- 0.25% center spread
•
•
2 - 0.7V current-mode differential CPU pairs
1 - 0.7V current-mode differential CPU pairs for ITP
•
•
•
Supports CPU clks up to 400MHz in test mode
Uses external 14.318MHz crystal
•
•
1 - 0.7V current-mode differential SRC pair
9 - PCI (33MHz)
Supports undriven differential CPU, SRC pair in PD#
for power management.
•
•
•
•
1 - USB, 48MHz
1 - DOT, 48MHz
2 - REF, 14.318MHz
3 - 3V66, 66.66MHz
•
1 - 3V66/VCH, selectable 48MHz or 66MHz
Key Specifications:
•
•
CPU/SRC outputs cycle-cycle jitter < 125ps
3V66 outputs cycle-cycle jitter < 250ps
Pin Configuration
*FSA/REF0
*FSB/REF1
VDDREF
X1
X2
GND
PCICLK_F0
PCICLK_F1
PCICLK_F2
1
2
3
4
5
6
7
8
9
48 VDDA
47 GND
46 IREF
•
•
•
PCI outputs cycle-cycle jitter < 250ps
CPU outputs skew: < 100ps
45 CPUCLKT_ITP
44 CPUCLKC_ITP
43 GND
42 CPUCLKT1
41 CPUCLKC1
40 VDDCPU
39 CPUCLKT0
38 CPUCLKC0
37 GND
36 SRCCLKT
35 SRCCLKC
34 VDD
33 Vtt_Pwrgd#
32 SDATA
+/- 300ppm frequency accuracy on CPU & SRC clocks
Functionality
FS2
U
DOT
MHz
SB/
VDDPCI 10
GND 11
CPU
SRC
MHz
3V66
MHz MHz
PCI
REF
MHz
B6b5 FS_A FS_B MHz
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
100.00 100/200 66.66 33.33 14.318 48.00
200.00 100/200 66.66 33.33 14.318 48.00
133.33 100/200 66.66 33.33 14.318 48.00
166.66 100/200 66.66 33.33 14.318 48.00
200.00 100/200 66.66 33.33 14.318 48.00
400.00 100/200 66.66 33.33 14.318 48.00
266.66 100/200 66.66 33.33 14.318 48.00
333.33 100/200 66.66 33.33 14.318 48.00
PCICLK0 12
PCICLK1 13
PCICLK2 14
PCICLK3 15
VDDPCI 16
GND 17
PCICLK4 18
PCICLK5 19
PD# 20
0
1
31 SCLK
30 3V66_0
29 3V66_1
48MHz_DOT 21
48MHz_USB 22
GND 23
28 GND
27 VDD3V66
26 3V66_2
VDD48 24
25 3V66_3/VCH
**120KW pull-down
48-pin SSOP
0717F—06/10/05