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US 2015/0318980 A1Published application
Phase Detector
AssigneeInfineon Technologies AG
InventorsWerner Grollitsch, Roberto Nonis
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Abstract
A phase detector device having a modulo N operator coupled with an adder is disclosed. Furthermore, clock recovery devices using such a phase detector device are discussed.
Claims20
A device comprising a phase detector, the phase detector comprising:
- a frequency information input;
- a phase information input;
- an adder, the frequency information input being coupled with a first input of the adder and the phase information input being coupled with a second input of the adder;
- and
- a modulo operation coupled between the frequency information input and the first input of the adder, wherein the modulo operation is an operation which outputs a rest of a division by N.
2 more elements
A device, comprising:
- an oscillator;
- a counter, a first input of the counter being coupled to an output of the oscillator and a second input of the counter being coupled to a data input;
- a modulo operator being coupled to an output of the counter;
- a phase detector being coupled to an output of the modulo operator;
- and
- a loop filter being coupled to an output of the phase detector, wherein an output of the loop filter is coupled with a control input of the oscillator.
3 more elements
A method, comprising:
- locking an oscillator on a reference pattern;
- and
- performing clock recovery during a random data transfer after the locking, wherein performing the clock recovery comprises performing a modulo operation on a number of cycles of an oscillator output signal between edges of the random data.
Dependencies are inferred from the claim text.