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Lower-skew fanout buffers keep system clocks right on time

Phoenix—ON Semiconductor's NB3N551, NB3L553, and NB3N2304NZ 1:4 fanout buffers, high-performance additions to the company's clock management portfolio for telecom, networking, and automated test equipment, have an output skew of as little as 160 ps across its outputs, versus 250 ps for typical devices.

The NB3N551 clock buffer, operating at up to 180 MHz, is designed as an upgrade to the industry standard ICS551. Typical skew is 50 ns between outputs. Packaged in a lead free (Pb-free) SOIC-8 package or a 2-by-2 mm DFN-8 package, the NB3N551, operating from a 3.3- or 5-volt source, is priced at 80 cents each in 2,500 unit quantities. Click here for the datasheet.

The NB3L553 clock fanout buffer operates at up to 200 MHz, with a typical skew of just 35 ps between outputs, and is pin compatible to the industry standard ICS553. The device, working from a 2.5, 3.3, or 5-volt source, is packaged in a Pb-free SOIC-8 and is priced at 87 cents each in 2,500 quantities. Click here for the product datasheet.

Operating at up to 140 MHz with a maximum skew of 100 ps, the NB3N2304NZ clock fanout buffer is a pin compatible second source to the industry standard ICS2304NZ. The device, operating from 3 to 3.6 volts, is suited for PCI/PCI-X applications. Click here for the datasheet. Packaged in a 4.4-by-3 mm Pb-free, 8-pin TSSOP, the NB3N2304NZ is priced at 87 cents each in 2,500 quantities.

ON Semiconductor , 1-602-244-6600, www.onsemi.com

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