A 622Mb/s BPSK demodulator with mixed-mode demodulation scheme

A new mixed-mode binary phase shift keying (BPSK) demodulator is demonstrated using a half-rate bang-bang phase detector commonly used in clock and data recovery (CDR) applications. This demodulator can be used for new home networking applications based on cable TV lines. A prototype chip is realized that can demodulate up to 622 Mb/s data at 1.4 GHz carrier frequency.