A 90nm CMOS 16Gb/s Transceiver for Optical Interconnects

An optical interconnect transceiver incorporates a 4-tap FIR TX to reduce VCSEL average current and an integrating/double-sampling RX to eliminate the need for a bit-rate TIA. A dual-loop CDR with baud-rate phase detection further reduces power and area. Fabricated in a 1V 90nm CMOS process, the transceiver achieves 16Gb/s operation while consuming 129mW and occupying 0.105mm2

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