Semtech Introduces Combination Laser Driver and Limiting Amplifier Platform for 10G PON Applications

The GN28L95 featuring Semtech’s automatic laser calibration technology demonstrated at CIOE booth 1C01

SHENZHEN, China, Sept. 06, 2016 (GLOBE NEWSWIRE) -- Semtech Corporation (Nasdaq:SMTC), a leading supplier of analog and mixed-signal semiconductors, today announced the release of the GN28L95 integrated laser driver and limiting amplifier for asymmetric 10G PON applications, combining for the first time Semtech’s unique automatic laser calibration technology with programmable 2.5G transmit and 10G receive signal paths. The 10G PON market is expected to benefit from the ongoing rollout of fiber-to-the-home (FTTH) network deployments where PON delivers economical Internet connectivity.  Semtech is showcasing its optical products at the China International Optoelectronic Expo (CIOE) in Shenzhen, booth 1C01, on September 6-9.

A photo accompanying this announcement is available at

This technology helps achieve cost reduction in the optical networking unit (ONU) in fiber-to-the-home customer premises equipment by enabling optics to be mounted directly on the main ONU board. This helps manufacturers keep pace with the rapid global growth and cost competition in the market for next-generation high data rate XGPON and 10GEPON ONUs. 

The GN28L95 is available in a small 4x4 millimeter QFN package, and it is compatible with a wide range of low-cost optics and requires minimal setup time with high production yield. Low-cost lasers and avalanche photodiodes (APDs) can be optimized using unique eye shaping technology to both transmit and receive. Further cost savings can be expected to be achieved through integration of the APD controller and digital control directly with the MAC processor.

Key Features of the GN28L95

Patented and proven automatic laser calibration is compatible with a wide range of industry lasers
Programmable 2.5G Tx with eye-shaping to optimize laser performance
Programmable 10G Rx with equalization and pre-emphasis to optimize APD performance
Integrated APD controller with fast fault protection


About Semtech
Semtech Corporation is a leading supplier of analog and mixed-signal semiconductors for high-end consumer, enterprise computing, communications and industrial equipment.  Products are designed to benefit the engineering community as well as the global community. The company is dedicated to reducing the impact it, and its products, have on the environment. Internal green programs seek to reduce waste through material and manufacturing control, use of green technology and designing for resource reduction. Publicly traded since 1967, Semtech is listed on the NASDAQ Global Select Market under the symbol SMTC. For more information, visit

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The photo is also available at Newscom,, and via AP PhotoExpress.