What this PCIe clock buffer does
The Renesas 9DB106BGILF is a PLL-based zero-delay clock fanout buffer built for PCI Express reference-clock distribution. It takes one differential clock input and delivers six HCSL outputs, all phase-aligned with low jitter. The PLL cleans up incoming jitter and compensates for board trace delay so every output edge lands in the same window — critical when you're driving multiple PCIe slots or root-complex endpoints off a single oscillator. Rated for 105 MHz maximum, this part covers PCIe Gen1, Gen2, and Gen3 reference-clock requirements. It does not reach the 400 MHz needed for Gen4 or Gen5 — if you're building a Gen4 backplane, look at the 9ZXL0851 or 9ZXL1231 family instead. Supply range is 3.135 V to 3.465 V. The 28-TSSOP package is a surface-mount footprint.
Temperature grade and where it runs
Industrial temperature range from -40°C to 85°C. That puts it in base-station radios, outdoor small cells, industrial Ethernet switches, and any environment where a commercial 0°C to 70°C part would drift or fail. If your board lives in a conditioned data-center rack, you could use the commercial-grade 9DB803DFLFT, but this part gives you headroom for the same BOM cost.
Lifecycle and sourcing reality
Active lifecycle — Renesas still manufactures this part, no last-time-buy notice, no NRND flag. ROHS3 compliant, so it passes the latest EU restriction updates without an exemption. That means you can qualify it into a new design today and expect multi-year supply without a forced redesign.