Injection locking frequency divider
An injection locking and frequency divider technology, applied in power oscillators, electrical components, etc., can solve the problems of limited operating frequency range of injection locking frequency dividers and affecting the stable operation of frequency dividers.
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[0017] The injection-locked frequency divider of this structure is applied to the frequency synthesizer system of the MB-OFDM UWB radio frequency receiver in the 3.1GHz to 10.6GHz frequency band, Figure 4 Shown is a schematic diagram of the structure of the phase-locked loop in the frequency synthesizer, which consists of a frequency and phase detector, a charge pump, a loop filter, a voltage-controlled oscillator and a frequency divider chain. The frequency and phase detector detects the frequency difference and phase difference between the crystal oscillator (reference clock) and the output signal of the frequency divider, and converts the difference into a current signal through the charge pump, and the current flows into the loop filter A voltage signal is formed to adjust the frequency of the voltage-controlled oscillator until the frequency and phase difference detected by the frequency and phase detector are zero. In practical applications, the frequency divider chain ...
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