Semtech launches new pon-x series chips for 10G PON ONU

July 06, 2021

Recently, Semtech, a leading supplier of high-performance analog, mixed signal semiconductors and advanced algorithms, announced the launch of its pon-x series gn28l97, which integrates laser driver (LDD) and limiting amplifier (LA) for asymmetric 10g PON optical network terminals (onus).

Simon McCaul, senior marketing manager of Semtech signal integration products division, said: "10g PON technology is expected to start extensive deployment in 2020, and equipment manufacturers are increasingly eager for their products to meet the demand for high capacity and faster download rate. Gn28l97's programmability and flexibility can contribute to the growth of PON industry by promoting higher performance of equipment manufacturing at low cost. "

gn28l97 is a fully integrated asymmetric combo chip, which integrates Semtech's unique automatic laser calibration technology and programmable 2.5G sending and 10g receiving signal paths. Low cost laser and avalanche photodiode (APD) performance is optimized using advanced eye shaping technology. This optimized design and integration can reduce the total cost of installing optical elements on the main ONU board.

gn28l97 uses a compact 4x4mm QFN package, which takes little time to increase production

Key features of gn28l97

the patented and verified automatic laser calibration can be compatible with different types of lasers in the industry

using eye shaping programmable 2.5G TX can optimize the laser performance

programmable 10g receiver with equalization and pre emphasis function can optimize APD performance

the integrated APD controller has fast fault protection

digital diagnostic monitoring (ddmi) can be compatible with sff-8472