ICS9LP525-2 Datasheet, PDF (1/21 Pages) Integrated Device Technology – 56-pin CK505 for Intel Desktop Systems

DATASHEET
56-pin CK505 for Intel Desktop Systems
ICS9LP525-2
Recommended Application:
CK505 clock, 56-pin Intel Yellow Cover part
Output Features:
• 2 - CPU differential low power push-pull pairs
• 7- SRC differential low power push-pull pairs
• 1 - CPU/SRC selectable differential low power push-pull pair
• 1 - SRC/DOT selectable differential low power push-pull pair
• 5 - PCI, 33MHz
• 1 - PCI_F, 33MHz free running
• 1 - USB, 48MHz
• 1 - REF, 14.318MHz
Key Specifications:
• CPU outputs cycle-cycle jitter < 85ps
• SRC output cycle-cycle jitter < 125ps
• PCI outputs cycle-cycle jitter < 250ps
• +/- 100ppm frequency accuracy on all outputs
• SRC are PCIe Gen2 compliant
Features/Benefits:
• Supports spread spectrum modulation, default is 0.5%
down spread
• Uses external 14.318MHz crystal, external crystal load
caps are required for frequency tuning
• Selectable SRC differential push-pull pair/two single
ended outputs
Table 1: CPU Frequency Select Table
FSLC²
B0b7
0
0
0
0
1
1
1
1
FSLB¹
B0b6
0
0
1
1
0
0
1
1
FSLA¹
B0b5
0
1
0
1
0
1
0
1
CPU
MHz
266.66
133.33
200.00
166.66
333.33
100.00
400.00
SRC PCI REF USB DOT
MHz MHz MHz MHz MHz
100.00 33.33 14.318 48.00 96.00
Reserved
1. FS_LA and FS_LB are low-threshold inputs.Please see V_{IL_FS} and V_{IH_FS} specifications in
the Input/Supply/Common Output Parameters Table for correct values.
Also refer to the Test Clarification Table.
2. FS_LC is a three-level input. Please see the V_{IL_FS} and V_{IH_FS}
specifications in the Input/Supply/Common Output Parameters Table for correct values.
Pin Configuration
IDT^® PC MAIN CLOCK
PCI0/CR#_A 1
56 SCLK
VDDPCI 2
55 SDATA
PCI1/CR#_B 3
PCI2/TME 4
PCI3/CFG0 5
PCI4/SRC5_EN 6
PCI_F5/ITP_EN 7
GNDPCI 8
VDD48 9
USB_48MHz/FSLA 10
GND48 11
VDD96_IO 12
DOTT_96/SRCT0 13
DOTC_96/SRCC0 14
GND 15
VDD 16
SRCT1/SE1 17
SRCC1/SE2 18
GND 19
VDDPLL3_IO 20
SRCT2/SATAT 21
SRCC2/SATAC 22
GNDSRC 23
SRCT3/CR#_C 24
SRCC3/CR#_D 25
VDDSRC_IO 26
SRCT4 27
SRCC4 28
54 REF0/FSLC/TEST_SEL
53 VDDREF
52 X1
51 X2
50 GNDREF
49 FSLB/TEST_MODE
48 CK_PWRGD/PD#
47 VDDCPU
46 CPUT0
45 CPUC0
44 GNDCPU
43 CPUT1_F
42 CPUC1_F
41 VDDCPU_IO
40 VOUT
39 CPUT2_ITP/SRCT8
38 CPUC2_ITP/SRCC8
37 VDDSRC_IO
36 SRCT7/CR#_F
35 SRCC7/CR#_E
34 GNDSRC
33 SRCT6
32 SRCC6
31 VDDSRC
30 PCI_STOP#/SRCT5
29 CPU_STOP#/SRCC5
56-SSOP & TSSOP
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