Frequency Flexible CMOS Octal Clock Generators Include On-Chip VCXO
Tue, 11/09/2010 - 12:38pm
Silicon Laboratories Inc. introduced what it asserts is the industry’s most frequency flexible in-circuit programmable CMOS clock generators. The new Si5350/51 octal clock generators with on-chip voltage-controlled crystal oscillators (VCXOs) replace traditional multi-component phase-locked loop (PLL) solutions with a single clock IC that delivers twice the frequency flexibility, 70 percent lower jitter and 30 percent lower power than competing timing products. The Si5350/51 clocks are optimized for cost-sensitive consumer electronics products such as DVRs, HDTVs, set-top boxes and gaming systems as well as printers, projectors, video conferencing, blade servers, single-board computers, RAID systems, femtocells and telecom customer premises equipment. The clock generators use MultiSynth technology to provide frequency flexibility, lower jitter, lower power and smaller footprint than any three-PLL or four-PLL clock generator on the market today, according to the company. The devices synthesize a unique frequency on each of their eight output clocks. By integrating clock synthesis in the clock device’s output divider stage rather than its PLL, these generators are said to provide the equivalent clock synthesis capability of eight PLLs while dramatically reducing board space and power consumption.