What this clock generator does on your board
The Cypress CY2213ZC-2 is a single-circuit PLL-based clock generator that takes a crystal input and delivers one LVPECL differential output pair, with a second fanout copy, at frequencies up to 400 MHz. The part is designed for commercial-temperature environments (0°C to 70°C) — think networking gear, test equipment, or base-station timing cards where a clean, low-jitter LVPECL clock is needed from a board-level crystal.
400 MHz LVPECL — what that buys you
The 400 MHz maximum output frequency on the LVPECL pair means this part can clock high-speed SERDES, FPGA gigabit transceivers, or 10G Ethernet PHYs directly. LVPECL swings are small and fast, so the signal integrity budget is tighter than a CMOS clock — keep the trace impedance controlled and the termination close to the receiver. The 1:2 ratio gives you one buffered copy of the PLL output, which is handy for splitting a reference clock between two ASICs or between an FPGA and a PHY without adding a separate fanout buffer.
Crystal input, no differential reference
The input side takes a fundamental-mode crystal — not a CMOS clock or a differential reference. That means your board needs a crystal footprint (parallel resonant, typical load capacitance per the crystal datasheet) between the XIN/XOUT pins. The internal oscillator and PLL do the rest. If your system already has a clean reference clock, you would need a different part with a clock input; this one expects a crystal.
Package and supply — fits standard 16-TSSOP land pattern
Supply range is 3.0V to 3.6V, so a 3.3V rail is the natural fit. No external loop filter components needed — the PLL is fully integrated.
No last-time-buy planning needed for this BOM line.