ICS9LPR502
IDTTM/ICSTM
56-pin CK505 w/Fully Integrated Voltage Regulator
1124D—02/26/09
56-PIN CK505 W/FULLY INTEGRATED VOLTAGE
REGULATOR
1
Datasheet
Recommended Application:
Key Specifications:
CK505 compliant clock with fully integrated voltage
regulator, PCIe Gen 1 compliant
CPU outputs cycle-cycle jitter < 85ps
SRC output cycle-cycle jitter < 125ps
PCI outputs cycle-cycle jitter < 250ps
+/- 100ppm frequency accuracy on CPU & SRC
clocks
Pin Configuration
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
Features/Benefits:
Does not require external pass transistor for voltage
regulator
Supports spread spectrum modulation, default is 0.5%
down spread
Uses external 14.318MHz crystal, external crystal
load caps are required for frequency tuning
One differential push-pull pair selectable between
SRC and two single-ended outputs
Table 1: CPU Frequency Select Table
PCI0/CR#_A 1
56 SCLK
VDDPCI 2
55 SDATA
PCI1/CR#_B 3
54 REF0/FSLC/TEST_SEL
PCI2/TME 4
53 VDDREF
PCI3 5
52 X1
PCI4/SRC5_EN 6
51 X2
PCI_F5/ITP_EN 7
50 GNDREF
GNDPCI 8
49 FSLB/TEST_MODE
VDD48 9
48 CK_PWRGD/PD#
USB_48MHz/FSLA 10
47 VDDCPU
GND4811
46CPUT0
VDDI/O96Mhz 12
45 CPUC0
DOTT_96/SRCT0 13
44 GNDCPU
DOTC_96/SRCC0 14
43 CPUT1
GND 15
42 CPUC1
VDD 16
41 VDDI/OCPU
SRCT1/SE1 17
40 NC
SRCC1/SE218
39CPUT2_ITP/SRCT8
GND 19
38 CPUC2_ITP/SRCC8
VDDPLL3I/O 20
37 VDDSRCI/O
SRCT2/SATAT 21
36 SRCT7/CR#_F
SRCC2/SATAC 22
35 SRCC7/CR#_E
GNDSRC 23
34 GNDSRC
SRCT3/CR#_C 24
33 SRCT6
SRCC3/CR#_D 25
32 SRCC6
VDDSRCI/O 26
31 VDDSRC
SRCT4 27
30 PCI_STOP#/SRCT5
SRCC4 28
29 CPU_STOP#/SRCC5
56-SSOP/TSSOP
IC
S
9
L
PR
5
0
2
FSLC
2
B0b7
FSLB
1
B0b6
FSLA
1
B0b5
CPU
MHz
SRC
MHz
PCI
MHz
REF
MHz
USB
MHz
DOT
MHz
0
266.66
0
1
133.33
0
1
0
200.00
0
1
166.66
1
0
333.33
1
0
1
100.00
1
0
400.00
11
1
1. FS
LA 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.
2. FS
LC 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.
Reserved
100.00
33.33
14.318
48.00
96.00