2 GHz fanout buffer for high-speed clock distribution
The 8S89833AKILF is a 1:4 fanout buffer from Renesas, designed to distribute a single differential clock input to four LVDS outputs with a maximum frequency of 2 GHz. This makes it suitable for clock-tree fanout in high-speed data converter, FPGA reference clock, and SerDes applications where signal integrity at multi-gigahertz rates is critical.
Signal standard and supply rail compatibility
The input stage accepts CML, LVDS, or LVPECL levels, while the outputs are LVDS — a common pairing that keeps the signal swing differential and the common-mode voltage within the receiver's input range without external level shifting. The supply voltage spans 3 V to 3.6 V, which aligns with standard 3.3 V clock-distribution rails. With a differential input-to-output path (Yes/Yes per the spec), the buffer preserves the low-jitter characteristics of the incoming clock. The single-circuit, 1:4 ratio means one input drives four copies — useful for fanning a master clock to multiple ADCs, FPGAs, or SerDes transceivers on the same board.
Package, footprint, and reflow considerations
Housed in a 16-VFQFN exposed-pad package (3x3 mm body, supplier device package 16-VFQFPN), the part sits on a 0.5 mm pitch land pattern. The small footprint means the buffer fits into dense clock trees where board real estate is tight.
Active lifecycle and compliance status
No end-of-life notice or successor is recorded — the part is current-production and suitable for both new designs and ongoing BOM replenishment.