Phase-locked loop with broadband fast frequency hopping function

The invention provides a phase-locked loop with a broadband fast frequency hopping function to solve the problem of long frequency hopping time. The device comprises an analog high-speed counting unit, a digital processing unit and a narrow-band voltage-controlled oscillation group, the narrow-band voltage-controlled oscillator group is composed of a plurality of narrow-band voltage-controlled oscillators, and the narrow-band voltage-controlled oscillators output frequency signals; the analog high-speed counting unit is used for quickly counting high-frequency signals in the frequency signalsoutput by the narrow-band voltage-controlled oscillator, converting counting pulses and counting values obtained after counting of the high-frequency signals into low-frequency signals and transmitting the low-frequency signals to the digital processing unit; and the digital processing unit is used for receiving the counting pulse and the counting value from the analog high-speed counting unit, calculating the frequency o