Quick-locking phase-locked loop frequency synthesis device
A frequency synthesis and fast locking technology, applied in the field of wireless communication, can solve the problems of limited locking time acceleration, inability to use effectively, limited loop bandwidth and channel spacing system requirements for glitches, etc., to achieve high-precision frequency preset and fast lock, fast lock effect
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[0034] refer to Figure 1-6 , a specific embodiment of the present invention includes a frequency preset circuit 10, a temperature switch array 11, a dynamic loop bandwidth control circuit 12, a voltage-controlled oscillator 13, a dual-mode preset frequency divider 14, a digital processor 15, and a non-volatile Characteristic memory 16, frequency and phase detector 17, charge pump 18 and loop filter 19;
[0035] The frequency preset circuit 10 is used to receive the frequency preset signal from the digital processor 15 and the dynamic temperature compensation signal of the temperature switch array 11, and generate the control voltage of the voltage-controlled oscillator 13;
[0036] The temperature switch array 11 generates a dynamic temperature compensation signal of the frequency preset circuit 10 for dynamic temperature compensation of the frequency preset circuit 10;
[0037] The dynamic loop bandwidth control circuit 12 is used to receive the clock signal, control signal...
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