Recommended Application:
CK505 compatible clock with fully integrated voltage regulator and
Internal series resistor on differential outputs
Output Features:
• 2 - CPU differential low power push-pull pairs
• 9 - 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 CPU & SRC clocks
Features/Benefits:
• Does not require external pass transistor for voltage regulator
• Integrated 33ohm series resistors on differential outputs,
Zo=50Ω
• 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 between one SRC differential push-pull pair and
two single-ended outputs
• Meets PCIEX Gen2 specification on dedicated SRC outputs.
Muxed SRC outputs meet PCIEX Gen1 specification, except
SRC1.
• Single-ended programmable slew rate control for RFI
reduction
• Meets PCIEX <85ps cycle-to-cycle jitter for SRC[11:1]