, MACOM expands 5G optical connectivity portfolio with 28Gbps TIAs for CPRI and Ethernet applications

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13 March 2018

MACOM expands 5G optical connectivity portfolio with 28Gbps TIAs for CPRI and Ethernet applications

© Semiconductor Today Magazine / Juno PublishiPicture: Disco’s DAL7440 KABRA laser saw.

In booth #2613 at the Optical Networking and Communication Conference & Exhibition (OFC 2018) in San Diego (13-15 March), MACOM Technology Solutions Inc of Lowell, MA, USA (which makes semiconductors, components and subassemblies for RF, microwave, millimeter-wave and lightwave applications) has announced the sampling and pre-production of 28Gbps transimpedance amplifiers (TIA), including the MATA-03003 and MATA-03006.

The TIAs support data rates of 8.5-28Gbps for 25G CPRI, 25G Ethernet and 32G Fibre Channel applications while featuring low power, high sensitivity/overload, reduced die size and flexibility in optical sub-assembly (OSA) for SFP28 optical modules.

Driven by 5G connectivity, data traffic demand is growing rapidly in wireless, enterprise and Cloud data-center applications, notes the firm, and optical module customers are looking for ways to deliver lower power, smaller size and lower cost solutions. The new TIAs offer a 20% power reduction while providing improved sensitivity and extended overload performance, enabling them to be cost effective and suitable for high-density optical connectivity, claims MACOM. The new TIAs also reduce the need for external components, streamlining hermetic To-header or chip-on-board (COB) assembly.

“Our newest family of TIAs offers superior optical sensitivity and overload with PIN and APD diodes at ultra-low power dissipation,” says Angus Lai, director of marketing, High-Performance Analog, at MACOM. “Bundled with our highly integrated 28G VCSEL [vertical-cavity surface-emitting laser] and DML [directly modulated laser] driver, they enable the best-in-class 28G module solutions,” he claims.

The MATA-03003 family offers die pinout flexibility in optical sub-assembly, allowing them to be assembled in various To-headers with PIN detectors for short-reach (SR) and long-reach (LR) applications. The MATA-03006 can be assembled with high-performance APDs for extended-reach (ER) applications.

The new TIAs feature a selectable low-rate mode operation via RSSI control pin from 28G VCSEL and DML laser driver with integrated CDR (MASC-37028/MALD-37030), providing improved receiver sensitivity at low data rates and backward compatibility with legacy 10G optical modules.

The MATA-03003/3006 are available in die form only. Pre-production samples are available now, with expected production release in first-half 2018.

Tags: M/A-COM

Visit: www.ofcconference.org/

Visit: www.macom.com

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