56-pin CK505 Clock - IDT
Description
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
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