GigOptix Inc., a lead designer, developer, and global supplier of a broad range of analog, digital, and mixed signal components to enable high-speed information streaming over the telecom networks, datacom infrastructure and consumer electronics links, announced its new, highly integrated, low power dissipation, with a small form factor single and quad channel Limiting 28 Gbps Direct Modulated Laser (DML) driver chipset for 25 Gbps and 100 Gbps Ethernet datacenter and cloud computing applications. The single channel HXT42100 and the quad channel HXT42400 DML drivers enable the next generation of lower power 28 Gbps SFP28+ and 100Gbps QSFP28+ Ethernet modules or Active Optical Cable (AOC) solutions, as well as providing 32 GFC and 128 GFC support for Fiber Channel Storage solutions.

The HXT42100 and HXT42400 DML drivers share the same architecture with a high level of integration, low power dissipation, and small form factor. The HXT42100 single channel driver footprint is sufficiently small to use within a TOSA (TO-can) solution. Both DML driver solutions support low voltage supply operation as low as 2.5V with modulation and bias currents of 50mA and 50mA respectively, enabling the next generation of low power modules, and can be driven with supply voltages up to 3.3V if higher modulation and bias currents are required. A single channel operating at 2.5V will dissipate less than 200mW of chip power. Neither of the two devices require any external Digital Analog Convertors (DAC) for operations.

A high level of integration is provided with both the HXT42100 and HXT42400 by incorporating the modulation, bias, and pulse shaping DAC into the devices with an integrated I2C interface for control, monitoring, fault, and status detection. The 1MHz I2C interface enables full control of additional functionality such as Signal Detect and Squelch, bandwidth adjust, mask-able fault and interrupt generation, internal temperature monitor selection, channel polarity inversion, and programmable CTLE input equalization.

“GigOptix is proud to announce our single and quad channel DML drivers as the latest addition to our datacom portfolio for the data center market supporting Ethernet and Fiber Channel protocols. Next to our market dominating 40Gbps short-reach (SR) and long reach (LR) ICs, and the 100Gbps SR ICs and CDR, the DML driver will substantially enhance our 100Gbps long-reach market penetration,” said Tom Kapucija, Datacom Marketing Director, GigOptix, Inc.

“Our new single and quad channel DML drivers provide industry leading integration, low power dissipation, and a small form factor. With integrated bias and modulation current control via our standard I2C interface, low power, and small form factor, TOSA TO-can form factor integration is now possible,” said Emad Afifi, GigOptix’s Senior Director of Engineering and the lead designer of these parts.

The HXT42100 and HXT42400 are sampling now and will be shipped in full production volumes in calendar Q2 of 2016. Please contact GigOptix at sales@gigoptix.com for sample availability and pricing information.