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A 14.025 Gb/s multi-media transceiver employs on-die Rx AC coupling with baseline wander correction and equalizes up to 26 dB insertion loss at 14.025 Gb/s with a linear equalizer, 10-tap DFE, and 4-tap Tx FIR filter in SST driver. The proposed techniques enable direct feedback for 1st-tap ISI cancellation, and positions of four DFE taps to be adapted over the range of 7 to 38 UI. The prototype is realized in 40 nm CMOS, consumes 410 mW at worst case, and has passed 16GFC compliance tests at 14.025 Gb/s.
Date of Publication: Dec. 2011