Datasheet
ICS9LPR502
56-PIN CK505 W/FULLY INTEGRATED VOLTAGE
REGULATOR
Recommended Application:
CK505 compliant clock with fully integrated voltage
regulator, PCIe Gen 1 compliant
Key Specifications:
•
•
•
•
CPU outputs cycle-cycle jitter < 85ps
SRC output cycle-cycle jitter < 125ps
PCI outputs cycle-cycle jitter < 250ps
Output Features:
+/- 100ppm frequency accuracy on CPU & SRC
clocks
•
•
•
2 - CPU differential low power push-pull pairs
7 - SRC differential low power push-pull pairs
Features/Benefits:
1 - CPU/SRC selectable differential low power push-pull
pair
•
Does not require external pass transistor for voltage
regulator
•
1 - SRC/DOT selectable differential low power push-pull
pair
•
•
•
Supports spread spectrum modulation, default is 0.5%
down spread
•
•
•
•
5 - PCI, 33MHz
Uses external 14.318MHz crystal, external crystal
load caps are required for frequency tuning
1 - PCI_F, 33MHz free running
1 - USB, 48MHz
One differential push-pull pair selectable between
SRC and two single-ended outputs
1 - REF, 14.318MHz
Table 1: CPU Frequency Select Table
Pin Configuration
FSLC2 FSLB1 FSLA1
PCI0/CR#_A 1
56 SCLK
55 SDATA
54 REF0/FSLC/TEST_SEL
53 VDDREF
52 X1
51 X2
50 GNDREF
49 FSLB/TEST_MODE
48 CK_PWRGD/PD#
47 VDDCPU
CPU
MHz
SRC
MHz
PCI
MHz
REF
MHz
USB
MHz
DOT
MHz
VDDPCI 2
B0b7
B0b6
B0b5
PCI1/CR#_B 3
PCI2/TME 4
PCI3 5
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
266.66
133.33
200.00
166.66
333.33
100.00
400.00
100.00
33.33 14.318 48.00
Reserved
96.00
PCI4/SRC5_EN 6
PCI_F5/ITP_EN 7
GNDPCI 8
VDD48 9
USB_48MHz/FSLA 10
GND48 11
VDDI/O96Mhz 12
DOTT_96/SRCT0 13
DOTC_96/SRCC0 14
GND 15
1. FSLA and FSLB are low-threshold inputs.Please see VIL_FS and VIH_FS specifications in
the Input/Supply/Common Output Parameters Table for correct values.
Also refer to the Test Clarification Table.
46 CPUT0
45 CPUC0
44 GNDCPU
43 CPUT1
2. FSLC is a three-level input. Please see the VIL_FS and VIH_FS
specifications in the Input/Supply/Common Output Parameters Table for correct values.
42 CPUC1
VDD 16
41 VDDI/OCPU
40 NC
17
SRCT1/SE1
SRCC1/SE2 18
GND 19
VDDPLL3I/O 20
SRCT2/SATAT 21
SRCC2/SATAC 22
GNDSRC 23
39 CPUT2_ITP/SRCT8
38 CPUC2_ITP/SRCC8
37 VDDSRCI/O
36 SRCT7/CR#_F
35 SRCC7/CR#_E
34 GNDSRC
SRCT3/CR#_C 24
SRCC3/CR#_D 25
VDDSRCI/O 26
SRCT4 27
33 SRCT6
32 SRCC6
31 VDDSRC
30 PCI_STOP#/SRCT5
29 CPU_STOP#/SRCC5
SRCC4 28
56-SSOP/TSSOP
IDTTM/ICSTM 56-pin CK505 w/Fully Integrated Voltage Regulator
1124D—02/26/09
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