CPC H03L 7/0807 (2013.01) [G06F 9/4498 (2018.02); H04L 7/0331 (2013.01)] | 20 Claims |
1. A clock and data recovery (CDR) system, comprising:
a correlator configured to:
receive data;
determine a first value of the received data; and
output a second value corresponding to the received data;
an accumulator configured to:
generate an accumulation value by accumulating the second value output from the correlator; and
output the accumulation value;
a state machine configured to determine whether a repeating pattern is present in the CDR system based on the accumulation value; and
a loop filter configured to use one value from among a third value stored in a leaky integrator and a fourth value stored in a delay line, based on the determination by the state machine.
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