A 20Gb/s QPSK Receiver with Mixed-Signal Carrier, Timing, and Data Recovery Using 3-bit ADCs. - Shunichi Kubo; Yuji Gendai; Satoshi Miura; Shinsuke Hara; Satoru Tanoi; Akifumi Kasarnatsu; Takeshi Yoshida; Satoshi Tanaka; Shuhei Arnakawa; Minoru Fujishlrna (CICC, 2024)