Phase-switching prescaler based on injection-locking
A prescaler and phase switching technology, applied in the direction of automatic power control, electrical components, etc., can solve the problem of increased power consumption, achieve the effect of low power consumption, good resistance to common mode noise, and easy to select flexibly
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[0025] see figure 2 , the phase switching prescaler of the present invention includes:
[0026] Multi-phase generator for dividing the frequency-divided signal f in Carry out the first level of frequency division, and generate eight signals with equal phase difference from P0 to P7 at the same time;
[0027] A multiplexer selects one of the eight signals with equal phase difference according to the state of the state machine;
[0028] The true single-phase clock module is composed of three true single-phase clock structures cascaded, and is used to divide the signal selected by the multiplexer in the second stage to obtain the output signal of the phase switching prescaler;
[0029] The state machine converts the control signal for switching the division ratio of the prescaler into the control signal of the multiplexer.
[0030] A logic "AND" operator, the output signal of the phase switching prescaler and the control signal for switching the frequency division ratio of th...
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