Any-frequency octal clock generators enable cost-sensitive apps

Any-frequency octal clock generators enable cost-sensitive apps

Claimed as the industry’s most-frequency-flexible in-circuit programmable CMOS clock generators,the Si5350/51 octal clock generators with on-chip VCXOs replace traditional multicomponent PLL solutions with a single clock IC that delivers, according to the company, twice the frequency flexibility, 70% lower jitter (

The parts generates all system clocks (audio, video, interface, and SoC) and can synthesize any combination of eight unique, non-integer-related frequencies up to 133 MHz with 0-ppm frequency error. They can also simultaneously generate free-running clocks from a crystal input as well as clocks synchronized to a reference clock or analog control voltage input. Housed in 4 x 4-mm 20-QFN, 24-QSOP, and 10-MSOP packages, the parts offer glitchless frequency shifting between two rates on up to six of the device outputs. (Ea/10,000: three outputs, $0.66; eight outputs, $2.38 — samples available now; prod qty, 4th qtr 2010.)

Silicon Laboratories , Austin , TX
512-416-8500
www.silabs.com