PCIe clock generator with 1:9 fanout
The Renesas 9FGV0841AKILF is a PLL-based clock generator designed specifically for PCI Express (PCIe) reference clock trees. It takes a single crystal input and produces nine differential HCSL or single-ended LVCMOS outputs at up to 100 MHz, covering the reference clock needs of PCIe Gen1, Gen2, and Gen3 root complexes, switches, and endpoints. The 1:9 ratio means one crystal drives nine clock loads — enough for a multi-slot backplane, a switch fabric, or a cluster of PCIe peripherals on a single board. The differential outputs are HCSL, the standard PCIe signalling level, while the LVCMOS option suits legacy or sideband logic. Supply voltage range is 1.7 V to 1.9 V. Operating temperature range is -40°C to 85°C.
100 MHz ceiling and what it means for PCIe generation
Maximum output frequency is 100 MHz, the standard PCIe reference clock rate.
Active lifecycle — no LTB risk
The 9FGV0841AKILF carries an Active lifecycle status with ROHS3 compliance. There is no last-time-buy notice or obsolescence watch on this order code. It can be specified into new designs without a near-term end-of-life concern.
Package and footprint notes
Housed in a 48-VFQFPN with exposed pad, surface-mount only.