4-output PCIe Gen1-2 Synthesizer

The ICS9FG104E is a frequency generator that provides 4 differential HCSL output pairs. It can be used to drive PCIe Gen1/2, SATA and USB3.0 devices. The part can use either a 14.31818 MHz or 25 MHz crystal. The 9FG104E can also be driven by a reference input clock instead of a crystal. It provides outputs with cycle-to-cycle jitter of less than 50 ps and output-to-output skew of less than 35 ps.

• Generates common frequencies from 14.318MHz or 25MHz
• Crystal or reference input
• 4V to 0.7V current-mode HCSL output pairs
• Supports Serial-ATA at 100MHz
• Two spread spectrum modes: -0.5% down spread and +/-0.25% center spread; Lower EMI
• 31.5KHz spread modulation rate; passes USB3 compliance testing
• Unused outputs may be disabled in either driven or Hi-Z state for power management
• I-temp version available; supports embedded applications