Low-cost precision frequency synthesizer soothes jitters

摘要

Available in a 32-pin MLF package, the SY89610L precision frequency synthesizer is claimed to not only bring the cost down by a factor of nearly 5, but to also eliminate noise while reducing space requirements. The part tames jitter by offering an output of typically 1 ps rms while other synthesizers on the market typically have 40-ps rms jitter. This product takes in selected frequency clocks between 19 and 694 MHz and puts out selected frequency with very low jitter. The device input accepts ac- or dc-coupled differential signals such as LVDS, LVPECL, and CML for maximum flexibility. This IC has an LC VCO and auto-tune circuit that improves signal performance.