Semtech offers 10G PON combination laser driver, limiting amplifier

Semtech Corp. (NASDAQ: SMTC) has unveiled the GN28L95 integrated laser driver and limiting amplifier for asymmetric 10G PON optical networking unit (ONU) applications, both XG-PON and 10G EPON. The device combines the company's automatic laser calibration technology with programmable 2.5G transmit and 10G receive signal paths.

Semtech Corp. (NASDAQ: SMTC) has unveiled the GN28L95 integrated laser driver and limiting amplifier for asymmetric 10G PON optical networking unit (ONU) applications, both XG-PON and 10G EPON. The device combines the company's automatic laser calibration technology with programmable 2.5G transmit and 10G receive signal paths.

Use of the laser driver/limiting amplifier enables designers to mount optics directly on the main ONU board. The GN28L95 comes in a 4x4 millimeter QFN package, is compatible with a range of optics, and requires minimal setup time with high production yield, Semtech says. Lasers and avalanche photodiodes (APDs) can be optimized using an eye-shaping technology to both transmit and receive. Semtech expects designers can achieve additional cost savings via integration of the APD controller and digital control directly with the MAC processor.

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