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This paper presents a referenceless baud-rate clock and data recovery (CDR) incorporated with a continuous-time linear equalizer (CTLE) and one-tap decision feedback equalizer (DFE) to achieve data rates from 22.5 to 32 Gb/s across a channel with Nyquist loss ranging from 10.1 to 14.8 dB. The referenceless CDR includes a proposed frequency acquisition scheme that consists of two parts: frequency detection...
Baud-rate clock and data recovery circuits (CDRs) are becoming more prevalent in high-speed receiver designs as they offer lower power consumption by sampling the received data only once per UI [1,2]. This reduces the number of front-end comparators and clock distribution networks [1]. However, current baud-rate CDRs require an external reference clock [1,2], adding to the system complexity in pin...
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