PLL-based zero delay buffer for single-ended clock trees
The CY2305SXC-1H from Infineon is a PLL-based fanout buffer and zero delay buffer that takes one single-ended clock input and distributes it to five outputs with near-zero propagation delay between input and output. The integrated PLL locks to the incoming clock and regenerates the output edges aligned to the input, so the phase relationship across the clock tree stays deterministic. Rated for a maximum frequency of 133.33 MHz, this buffer suits clock distribution in systems where the core logic runs at standard PCI, Ethernet, or memory interface frequencies. The 1:5 fanout ratio means a single oscillator or clock source can feed five downstream loads without additional buffering stages.
Active lifecycle and compliance status
This is a current-design part suitable for new builds and BOM replenishment. ROHS3 compliant, so it meets the latest EU restriction on hazardous substances without a waiver. No pin-compatible second-source or successor is listed on the official record — the CY2305SXC-1H is the sole order code for this specific configuration.