9 September 2010


GigOptix debuts ultra-low-power 14G VCSEL driver and TIA for SFP+

GigOptix Inc of Palo Alto, CA, USA, which designs modulator and laser drivers and transimpedance amplifier (TIA) ICs based on III-V materials as well as polymer electro-optic modulators, is sampling its new pre-production chipset for short-reach 2–14Gb/s serial optical interconnects. Building on the firm's expertise in providing low-power 40G and 100G parallel short-reach devices, the newest offering provides a complete serial link solution for applications up to 14Gb/s.

Consisting of the HXT4101A VCSEL (vertical-cavity surface-emitting laser) driver and the HXR4101A multi-rate receiver, the chipset is designed to not only enable ultra-low-power consumption of less than 150mW for 100m links and 250mW for 300m links but also minimize the components required to implement a transceiver in order to reduce costs.

The HXR4101A receiver is a limiting TIA with pre-emphasis output that eliminates the need for the post-amplifier required in existing industry solutions and supports multiple rates from 2Gb/s to 14Gb/s, suiting systems requiring backward compatibility. The HXT4101A VCSEL driver supports up to 14Gb/s data rates while consuming less than 65mW, delivering 7mA average and 7mA modulation current. The easy-to-use and compact designs enable applications to extend from datacom into avionic and consumer applications.

The new chipset uniquely addresses current and future datacom short-reach needs, claims Jörg Wieland, ViP & general manager of GigOptix-Helix in Zurich, Switzerland. "We developed these highly innovative products to address customer demand for high performance, lower power and better cost-efficient solutions," he adds. "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."

Search: GigOptix VCSEL TIA


For more on GigOptix: Latest issue of Semiconductor Today