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Clock drivers come with selectable equalizer receiver

Posted: 02 Feb 2010 ?? ?Print Version ?Bookmark and Share

Keywords:clock driver? data driver? equalizer receiver?

On Semi clock drivers

ON Semiconductor extended its family of clock drivers with the release of the NB7L585, NB7L585R, NB7V585M and NB7V586M differential 2:1 mux input to 1:6 devices, and the NB6HQ14M and NB7HQ14M 1:4 fanout clock/data drivers with equalization.

The NB6HQ14M and NB7HQ14M integrate a selectable equalizer receiver into a high-performance differential 1:4 CML clock driver. When placed in series with a data path operating at up to 6.5Gbit/s or 10Gbit/s the inputs will compensate the degraded signal and output four identical CML copies of the original input signal. The serial data rate is thereby increased by reducing Inter-Symbol Interference (ISI) caused by losses in the copper interconnect or long cables.

The NB7L585, NB7L585R, NB7V585M and NB7V586M are the newest members of the Gigacomm family representing a new 2:1:6 function integrating a 2:1 mux with a 1:6 fanout buffer. The NB7L585 and NB7L585R are 2.5V/3.3V devices with either Low Voltage Positive Emitter Coupled Logic output or Reduced Swing Emitter Coupled Logic output of 400mV peak-to-peak, respectively. The NB7L585 operates up to 5GHz or 8Gbit/s, and the NB7L585R operates up to 7GHz or 10Gbit/s.

The NB7V585M is an ultra low voltage device operating from a 1.8V/2.5V power supply. The NB7V586M operates from an ultralow 1.8V supply and offers the six outputs configured as three banks of two differential pairs. Each bank of outputs has the flexibility to be powered by any combination of either 1.8V or 1.2V supplies. Both devices operate up to clock/data rates of 6GHz/10Gbit/s.

The specifications achieved by these clock drivers make them highly suited to use in SONET, Gigabit Ethernet, Fiber Channel, backplane and other clock/data distribution applications. The ambient operating temperature of each of these devices covers -40C to +85C.

"The system designs for telecom switches, servers and routers are under pressure to support ever-increasing clock and data interfaces and voltage levels without compromising on the signal quality," said Prescott Sakai, director, clock and data management business unit, ON Semiconductor. "The company's new clock drivers enable new integrated functions with equalization features that support various interfaces and low voltage level options. These devices maintain higher signal integrity at data rates that the competing suppliers simply cannot match."

Pricing for the NB7L585, NB7L585R, NB7V585M, NB7V586M, NB6HQ14M and NB7HQ14M start from $5.25 in 1,000-unit quantities. They are all offered in low profile 3mm x 3mm 16-pin or 5mm x 5mm 32-pin Pb-free QFN packages. Samples are available now.





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