“…With the continuous expansions of the applications of wired serial communication, the performance, cost, and scalability of clock and data recoveries (CDRs) as the core component of wireline receivers are getting more attention. Referenceless CDRs have the following advantages over existing CDRs that requires a reference clock: First, the operational data rate being neither fixed nor of a few predefined values, a referenceless CDR can adaptively operates at any data rate within the tuning range of DCO [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19]. Therefore, it has a wider range of applications and improves the reusability of IPs.…”