Patent ID: 6950482

Claim:
A phase detector circuit for a phase control loop, comprising: an input connection for receiving input data; a data regeneration circuit operatively connected to said input connection, said data regeneration circuit regenerating the input data in dependence of a clock signal; two EXOR circuits connected to said data regeneration circuit, said EXOR circuits operating as phase comparators; an integrating loop filter connected to said two EXOR circuits such that said two EXOR circuits and said integrating loop filter are connected to form one circuit, said integrating loop filter integrating a difference between signals provided by said two EXOR circuits and said integrating loop filter providing an output signal controlling a generation of the clock signal fed back to said data regeneration circuit; said two EXOR circuits having common circuit elements selected from the group consisting of load resistors and current sources; two integrators respectively connected in parallel to said common circuit elements, said two integrators integrating output signals provided by said two EXOR circuits; and said integrating loop filter providing, as the output signal, a voltage resulting at said two integrators.