A circuit for a phase detector is provided. A first buffer of the circuit receives a data signal and generates a first modified data signal using the data signal. A notifier receives the data signal and determines whether a violation exists. A first multiplexer receives the first modified data signal and transmits a first multiplexer signal to a second multiplexer. The second multiplexer receives the first multiplexer data signal and the first modified data signal, and transmits a second multiplexer data signal to a flip-flop of the phase detector.