ICS9LPRS525 - Integrated Device Technology
Description
DATASHEET
56-pin CK505 for Intel Systems
Recommended Application: 56-pin CK505 compatible clock, w/fully integrated Vreg and series resistors on differential outputs Output Features: • 2 - CPU differential low power push-pull pairs • 7 - SRC differential push-pull pairs • 1 - CPU/SRC selectable differential low power push-pull pair • 1 - SRC/DOT selectable differential low power push-pull pair • 1 - SRC/SE selectable differential push-pull pair/Single-ended outputs • 5 - PCI, 33MHz • 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 outputs meet PCIe Gen2 when sourced from PLL3 Pin Configuration
PCI0/CR#_A 1 VDDPCI PCI1/CR#_B PCI2/TME PCI3/CFG0 PCI4/SRC5_EN PCI_F5/ITP_EN GNDPCI VDD48 USB_48MHz/FSLA GND48 VDD96IO DOTT_96_LRS/SRCT0_LRS DOTC_96_LRS/SRCC0_LRS GND VDD SRCT1_LRS/SE1 SRCC1_LRS/SE2 GND VDDPLL3IO SRCT2_LRS/SATAT_LRS SRCC2_LRS/SATAC_LRS GNDSRC SRCT3_LRS/CR#_C SRCC3_LRS/CR#_D VDDSRCIO SRCT4_LRS SRCC4_LRS 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 56 SCLK 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 SDATA REF0/FSLC/TEST_SEL VDDREF X1 X2 GNDREF FSLB/TEST_MODE CK_PWRGD/PD# VDDCPU CPUT0_LRS CPUC0_LRS GNDCPU CPUT1_F_LRS CPUC1_F_LRS VDDCPUIO NC CPUT2_ITP_LRS/SRCT8_LRS CPUC2_ITP_LRS/SRCC8_LRS VDDSRCIO SRCT7_LRS/CR#_F SRCC7_LRS/CR#_E GNDSRC SRCT6_LRS SRCC6_LRS VDDSRC PCI_STOP#/SRCT5_LRS CPU_STOP#/SRCC5_LRS
ICS9LPRS525
Features/Benefits: • Supports spread spectrum modulation, 0 to -0.
5% down spread • Supports CPU clks up to 400MHz • Uses external 14.
318MHz crystal, external crystal load caps are required for frequency tuning Table 1: CPU Frequency Select Table
FSLC B0b7 0 0 0 0 1 1 1 1
2
FS LB B0b6 0 0 1 1 0 0 1 1
1
FSLA B0b5 0 1 0 1 0 1 0 1
1
CPU MHz 266.
66 133.
33 200.
00 166.
66 333.
33 100.
00 400.
00
SRC MHz
PCI MHz
RE...
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