Clock generator and integrated circuit using the same and injection-locked phase-locked loop control method
First Claim
Patent Images
1. A clock generator, comprising:
- an injection-locked phase-locked loop for generation of an output clock, receiving a sampling clock and an injection clock for an integral path and a proportional path of the injection-locked phase-locked loop, respectively;
a pulse-power controller, controlling power level of the injection clock;
delay elements for the sampling clock and the injection clock; and
a delay control circuit, coupled between the injection-locked phase-locked loop and the delay elements to control the delay elements based on a phase error of the integral path of the injection-locked phase-locked loop, wherein the phase error is due to a change, caused by the pulse-power controller, in the power level of the injection clock.
1 Assignment
0 Petitions
Accused Products
Abstract
A control technique for an injection-locked phase-locked loop (ILPLL) includes the following steps: providing the ILPLL with a sampling clock and an injection clock for an integral path and a proportional path of the ILPLL, respectively; making a change in the power level of the injection clock to get the phase error of the integral path of the ILPLL; and controlling the phase difference between the sampling clock and the injection clock based on the phase error of the integral path of the ILPLL.
11 Citations
19 Claims
-
1. A clock generator, comprising:
-
an injection-locked phase-locked loop for generation of an output clock, receiving a sampling clock and an injection clock for an integral path and a proportional path of the injection-locked phase-locked loop, respectively; a pulse-power controller, controlling power level of the injection clock; delay elements for the sampling clock and the injection clock; and a delay control circuit, coupled between the injection-locked phase-locked loop and the delay elements to control the delay elements based on a phase error of the integral path of the injection-locked phase-locked loop, wherein the phase error is due to a change, caused by the pulse-power controller, in the power level of the injection clock. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A control method for an injection-locked phase-locked loop for generation of an output clock, comprising:
-
providing the injection-locked phase-locked loop with a sampling clock and an injection clock for an integral path and a proportional path of the injection-locked phase-locked loop, respectively; and controlling a phase difference between the sampling clock and the injection clock based on the phase error of the integral path of the injection-locked phase-locked loop by making a change in the power level of the injection clock to get a phase error of the integral path of the injection-locked phase-locked loop. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
Specification