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iT6144 Duobinary Encoder and Driver Amplifier
Description
The iT6144 is a RoHS-6-compliant integrated duobinary encoder and driver in a compact, surface-mount package for optical 300-pin module and linecard transponders used in long-haul applications. The device converts an electrical 10 Gb/s NRZ signal into an equivalent duobinary signal, then amplifies it to drive a “filtered” LiNbO3 modulator. The iT6144’s duobinary output level is adjustable from 6 to 10.5 Vpp, which is sufficient to reach 2*Vpi of most LiNbO3 modulators and provide margin for loop control to track variations caused by temperature and aging. Single-ended clock and data inputs eliminate the need for phase-matched traces, simplifying the board layout. The clock input and duobinary output are AC-coupled in the package.
iT6144 Datasheet
