Phase-locked detection device, phase-locked detection method and phase-locked loop
A detection device and a phase-locked technology, applied in the field of phase-locked loops, can solve the problems of unreliable results, inability to detect short pulses, and inability to identify short-term loss of lock.
Pending Publication Date: 2021-07-30
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AI-Extracted Technical Summary
Problems solved by technology
The invention provides a phase-locked detection device, a phase-locked detection method and a phase-locked loop. The phase-locked detection device comprises a reference pulse generation circuit, a feedback pulse generation circuit, a reset circuit, a reset signal generation circuit, a pulse acquisition circuit and a phase-locked judgment circuit, a reference clock is input into the reference pulse generation circuit to generate a reference pulse, and the reference pulse is input into the pulse acquisition circuit and the reset signal generation circuit; the feedback clock is input into the feedback pulse generation circuit, the feedback pulse generation circuit outputs feedback pulses, and the feedback pulses are input into the pulse acquisition circuit; the pulse acquisition circuit takes a feedback pulse as clock end input, takes a reference pulse as counting end input, and outputs a phase-locked enable signal; the phase-locked enable signal is output to the phase-locked judgment circuit, and the phase-locked judgment circuit outputs a locking signal after counting reaches a preset value. The scheme provides the detection device which is simple in precision and simple in structure.
Pulse automatic control
Phase lockingPhase-locked loop +2
- Experimental program(1)
Description & Claims & Application Information
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