Injection locked phase locked loop
a phase lock and injection technology, applied in the direction of electrical equipment, pulse automatic control, etc., can solve problems such as spurious signals, and achieve the effect of enhancing the spur reduction capability
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[0019]Hereafter, various embodiments will be described below in more detail with reference to the accompanying drawings.
[0020]FIG. 1 is a block diagram of an injection locked phase locked loop 10 according to an embodiment of the present disclosure.
[0021]In the embodiment of FIG. 1, the injection locked phase locked loop includes an injection locked oscillator 100, an error detector 200, a frequency controller 300, a phase controller 400, and an injection signal generator 500.
[0022]In the embodiment of FIG. 1, the injection locked phase locked loop 10 may further include a frequency divider 600, a phase comparator 700, and a path selector 800.
[0023]The injection signal generator 500 outputs a pulse injection signal (or an injection signal) INJ synchronized with an edge (e.g., a rising edge) of a reference clock signal REF.
[0024]The injection signal generator 500 includes an inversion delay circuit 510 for inverting and delaying the reference clock signal REF and a logic gate (e.g., ...
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Abstract
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