Durand Jarrett-Amor, Kunal Yadav, D. Zhang, Bangda Yang, Sadegh Jalali, A. C. Carusone
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A 32 Gb/s, 0.42 pJ/bit Passive Hybrid Simultaneous Bidirectional Transceiver for Die-to-Die Links
This paper presents a single-ended, passive hybrid for a simultaneous bidirectional (SBD) die-to-die link. It provides a signal-to-interference ratio better than 20 dB at 10 GHz while consuming only 3.72% of the total power and is used in a split-termination SBD transceiver (TRX) with a transimpedance amplifier (TIA) as a driver, which improves signal integrity by minimizing signal reflections. Extracted simulations of the TRX in 16nm CMOS over a 5 mm die-to-die link demonstrate error-free communication at 32 Gbps (16 Gbps + 16 Gbps) with a power efficiency of 0.42 pJ/bit on a 0.9 V. supply.
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