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Chipset integrates 14G VCSEL driver, TIA for SFP+

Posted: 14 Sep 2010 ?? ?Print Version ?Bookmark and Share

Keywords:laser? amplifier? chipset? transceiver? modulation?

GigOptix Inc. said its new chipset for short reach 2-14Gb/s serial optical interconnects for 40G and 100G fiber-optic networks is now in pre-production.

Combining a HXT4101A vertical cavity surface emitting laser (VCSEL) driver and a HXR4101A multirate receiver, the chipset delivers ultra-low-power consumption of 150mW for 100m links and 250mW for 300m links. It reduces the cost of implementing a transceiver as the HXR4101A receiver is a limiting transimpedance amplifier (TIA) with pre-emphasis output, which means a post amplifier is no longer needed. Its support for multiple rates from 2Gb/s to 14Gb/s, ensures backward compatibility with older systems.

Supporting up to 14Gb/s data rates, the HXT4101A VCSEL driver consumes less than 65mW and delivers 7mA average and 7mA modulation current. The chipset is compact, making it suitable for a wide range of applications, including datacom, avionic and consumer.

Joerg Wieland, vice president and general manager of GigOptix-Helix, said the new chipset solution "uniquely addresses the current and future datacom short reach needs." "Taking a fresh look at how we as an industry implement our transceivers, we leveraged the latest process technologies to optimize the architecture of the devices to improve performance while at the same time reducing power consumption and system cost," he added.

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