TH6484B - "Phase comparison circuit and PLL circuit" - Google Patents

Abstract

A phase comparison circuit that includes a device that generates a sensing signal responding to multiple levels of signals. The measuring signal represents a multi-level signal regardless of whether it is a set level or not. The second device is connected to the first device to generate a control signal, one responds to the measuring signal generated by the first device. And the clog signal. The first control signal represents the time between the front edge of the pulse in the measuring signal. And the blinking point of the clog signal which follows the front edge of the pulse in the measuring signal A third device is connected, one that works to generate a control signal, the second responds to the measuring signal generated by the first device and the loop signal. The second control signal represents the time between the blinking point, the tip edge, and the back edge of the pulse in the sensing signal. The fourth device is connected to the second and the third to produce a phase error signal. The station responds to the first control signal generated by the second device and the second control signal generated by the third device, the second control signal generator, and the second control signal generated by the third device. The phase error signal represents the difference between the phases of the measuring signal generated by the first device and the phase of the clog signal.

Claims (9)

1. Phase comparison circuit consisting of The first method for generating a sensing signal is responsive to a multi-level signal, with a measuring signal representing a multi-level signal, regardless of whether it is a given level or not. The second path is connected to the first to produce the control signal one to the measuring signal originating by the first. And the clog signal, where the control signal one represents the time between the ends of the front of the pulses in the measuring signal. And the blinking point of the clog signal which follows the front edge of the pulse in the measuring signal The third path is connected to the first path so that the second control signal generator responds to the measuring signal that produces the first path. And the clog signal, where the second control signal represents the time between the pulsed signal blink and the rear edge of the pulse in the sensing signal and the path connected to the second and trajectory. Third, the phase error generator responds to the first control signal given by the third path. The phase error signal represents the difference between the phases of the measuring signal generated by the first path. And the phase of the clog signal 2. Phase comparison circuit consisting of The first method for generating a sensing signal responds to a multi-level signal by means of a multi-level signal, regardless of whether it is a specified level or not. The second path is connected to the first to generate the control signal, the second responds to the measuring signal originating by the first. And the clog signal, where the control signal one represents the time between the front edge of the pulse in the signal And the first blinking point of the clinch signal which follows the front edge of the pulse in the measuring signal The third way to generate the second control signal responds to the clinch signal, with the resonant control signal representing the time between the first blink of the clinch signal and the second blinking point, which follows the point. Flashing at one of the clog signals The fourth path is to generate the third control signal, responding to the clog signal, where the third control signal representing the interval is half the cycle of the clog signal, with the third control signal representing the interval. Half of the cycle of clog signal And starting from the second blink of the loop signal, and the fifth path connects to the second path. The third and the fourth ways In order to generate the phase error signal, it responds to the first control signal generated by the second path, with the second control signal generating by the fourth path, with the phase error signal representing the phase difference. Of the measurement signal being generated by the first method. And the phase of the clog signal 3. Phase comparison circuit consisting of The first method for generating a sensing signal responds to a multi-level signal, where the measuring signal represents a multi-level signal, regardless of whether or not it is a defined level of pulses in the measuring signal leading to the point. Second flash of clog signal Which followed the flashing point at one of the signal clog And to generate a third control signal And a control signal that responds to a loop signal in the event that the second blink point of the loop signal precedes the back edge of the pulse in the sensing signal, with the second control signal representing the interval between the blinking point at one Of the clinch signal and the rear edge of the pulse in the sensing signal The third control signal represents the interval between the first blink of the clog signal. And the second blinking point of the clog signal, where the fourth control signal representing a period is half the cycle of the clog signal. It starts from the second blink of the clog signal and the fourth is connected to the second path. And a third way to generate a phase error signal in response to a second control signal. And a second control signal originating by the third path or in response to the first control signal generating the second and the third and fourth control signal generating by the third path. The phase error signal represents the difference between the phases of the measuring signal originating by the first path and the phase of the clog signal. 4. Phase comparison circuit consisting of a) a set of signal detectors that produce a differential sensing signal, responding to several signal levels, respectively; The measurement signal represents a multi-level signal, regardless of whether it is the specified level of difference. And b) a set of phase comparison steps on the basis of the signal meter, respectively, and processing the measuring signals generated by the sequential signal detectors, where each phase comparison part consists of b 1) pathway One is for controlling signal, one responds to the sensing signal involved by one control signal. It represents the time between the front edge of the pulse in the sensing signal and the blinking point of the clog signal, which follows the principle of the front edge of the pulse in the measuring signal. B 2) a second path to generate the signal The second controller responds to the relevant sensing signal, with the second control signal representing the time between blinking points of the clog signal. And b 3) A third path is connected to the first and second path to generate the phase error signal in response to the control signal one providing Born by the first way And a second control signal, which is produced by a second path, with the phase error signal representing the phase difference of the measuring signal originating by one path. And the phase of the clog signal 5. Phase comparison circuit, as stated in claim 1, where the fourth path consists of a suction circuit. 6. PLL circuit containing The first way to generate clog signals The second path is connected to the first path to generate control signals, one responds to the input and clog signals that are generated by the first. The first control signal represents the time between the front edge of the pulse in the input signal. And the wave point of the clog signal which follows the front edge of the pulse in the input signal The third path is connected to the first path to generate the control signal, the second responds to the clog signal generated by the first. And the input signal, where the second control signal represents the time between the wave point of the clag signal and the rear edge of the pulse in the input signal. The fourth path is connected to the second and the third path so that the phase error signal generator responds to the first control signal by the second. And the second control signal that is generated by the third path The phase error signal represents the difference between the phases of the clog signal generated by the first path. And the phase of the input signal and the pathway performed to control the phase of the waveform in response to the phase error signal generated by the fourth path. 7. Phase comparison circuit consisting of The first way to generate a sensing signal responds to a multi-level signal by means of a multi-level signal, whether it is a specified level or not. The second path is connected to the first path so that one control signal is assigned to the generated measuring signal. By the way one and the clog signal, where the control signal one represents the time between the front edge of the pulse in the measuring signal and the blink point one of the waveforms. Which follows the front edge of the pulse in the measuring signal The third path is connected to the first path to generate the control signal, the second responds to the measuring signal produced by the first. And the clog signal in the event that the rear edge of the pulse in the sensing signal precedes the second blinking point. Which will follow the one blinking point of the clog signal And to generate a third control signal and a fourth control signal responding to the sensing signal generated by the first path. And the ring signal where the second blinking point of the fourth control signal represents the time interval between the back edge of the pulse in the measuring signal. And the third blink-point of the clog signal, which follows the back-edge of the pulse in the measuring signal and the path connected to the second and third paths to produce a fault signal. Of phase responds to the first control signal generated by the second path and one of (1) the second control signal generating by the third path and (2) the combination of the third and the third control signal. Fourth was born by the third way The phase error signal represents the phase difference of the measuring signal that produces the first path. And the phase of the loop signal 8. Phase comparison circuit which consists of A phase comparison path that consists of The first way to generate a sensing signal responds to a multi-level signal by means of a multi-level signal, regardless of whether it is a specified level or not. The second path is connected to the first path to generate the control signal, the first responding to the measuring signal originating by the first. And the clog signal, where the control signal one represents the time between the front edge of the pulse in the measuring signal And the first blink of the clog signal, which follows the front edge of the pulse in the measuring signal. The third path is connected to the first path to generate the control signal, the second responds to the measuring signal produced by the first. And the clog signal, where the second control signal represents the time between the front edge of the pulse in the measuring signal. And the second blink of the clog signal, which follows the back edge of the pluse in the measuring signal. The fourth path is to generate the control signal, the third responds to the clinch signal, with the third control signal representing the moment equals around the clog signal edge, and the fifth path is connected to the clog signal. The third way And the fourth path, to generate phase faults, responding to the first control signal, which is generated by the second, by the second control signal, produced by the third. And a third control signal generated by the fourth path where the phase error signal represents the phase difference of the measuring signal originating by the first path. And the phase of the clog signal 9. Phase comparison circuit as described in Clause 2, where the first method consists of a set of signal detectors that generate various measuring signals. Responds to yard-level signals, respectively, by sensing signals instead of multi-level signals, regardless of whether they are assigned levels at different levels or not, respectively. And where the second path responds to the measuring signal generated by the signal detector 1 0. Phase comparison circuit as defined in claim 3, where the first route consists of a series of signal-generating detectors, responding to a multilevel signal, respectively, where Measurements will represent multilevel signals, regardless of whether they are assigned different levels or not, respectively. And where the second and third paths respond to the measuring signals generated by the signal detector 1. 1. The phase comparison circuit as described in claim 7, where the first route consists of a series of signal detectors that produce a differential signal, responding to a multilevel signal, respectively. The measurement signal recognizes multiple levels of signals, regardless of whether it is the specified level of difference or not, respectively. And where the second way And the third way is to respond to the measuring signal by the signal detector 1 2. The phase comparison circuit as described in Clause 8, where the first method consists of a set of signal detectors that produce a signal. Responds to multiple signals respectively The measuring signal represents a multi-level signal, regardless of whether it is set at different levels respectively, and where the second and third paths respond to the measuring signals that generate the detector. Signal 1 3. Phase comparison circuit as stated in claim 2, where the fifth route consists of a suction circuit 1. 4. Phase comparison circuit, as stated in claim 3, where the fourth path consists of signal circuit 1. 5. Phase comparison circuit, as outlined in claim 7, where the fourth path consists of a signal circuit 1. 6. Phase comparison circuit, as stated in claim 8, where the fifth path consists of signal circuit 1. 7. A PLL circuit consisting of a phase comparison circuit as described in clause 2 1. 8. A PLL circuit consisting of a phase comparison circuit as described in clause 3 1. 9. A PLL circuit consisting of a phase comparison circuit as described in clause 7 2. 0. A PLL circuit consisting of a phase comparison circuit as described in clause 8.