The PT-28E is a differential-output receiver which addresses both 28-Gbaud and 56-Gbaud, PAM4 receive applications. PT-28E couples a back-illuminated 50-GHz PIN photodiode, usable from 1200 nm to 1650 nm, with an internal high bandwidth transimpedance amplifier.
Judge's Comment: "Excellent product addressing a critical challenge of adopting PAM4 technology."
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