Patent ID: 11936391
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A circuit, comprising:
a phase frequency detector (PFD) having a first input, a second input, and an output, the PFD operable to receive, at the first input, a reference signal derived from an input signal;
a first control circuit having an input and an output, the input of the first control circuit coupled to the output of the PFD;
a second control circuit having an input and an output, the second control circuit operable to receive the input signal at the input of the second control circuit;
a modulation circuit having first and second inputs and an output, the first input of the modulation circuit coupled to the output of the first control circuit, the second input of the modulation circuit coupled to the output of the second control circuit; and
an oscillator having an input and an output, the input of the oscillator coupled to the output of the modulation circuit, and the output of the oscillator coupled to the second input of the PFD.