High-precision clock phase control circuit

Abstract

The invention discloses a high-precision clock phase control circuit, relating to the field of electronic circuits. The high-precision clock phase control circuit comprises a multi-phase clock generation circuit module and a programmable phase selection circuit module, wherein the clock generation circuit module comprises a plurality of phase selection circuits, and each phase selection circuit comprises at least one selection unit and at least one protection unit; the programmable phase selection circuit module comprises a plurality of many-way selection units and phase combination circuits, and each many-way selection unit is respectively communicated with each phase combination circuit. According to the high-precision clock phase control circuit, the multi-phase clock generation circuit module and the programmable phase selection circuit module are combined, so that the high-precision clock phase control circuit has the advantages of simple structure, low cost, high sensitivity and higher precision, and the specific clock switching method can be used for eliminating burr phenomena, and the signal quality and precision are improved.

Description

Technical field [0001] The present invention involves the field of electronic circuits and specifically involves a high -precision clock phase control circuit. Background technique [0002] The clock frequency refers to the basic frequency of the clock in the synchronous circuit. It is measured with "several second cycles" and the measured unit uses the SI unit Hz (Hz).Numerous transistors in digital circuit and analog circuit chips work in the switch state. Their in -depth and control movements are performed according to the rhythm of the clock signal.If the clock frequency is too high, the state of the transistor may be too late to change, and a deadlock or random operation.At the same time, due to the needs of the circuit working status, the phase of the clock needs to be adjusted. The existing clock phase adjustment usually depends on the implementation of separate chips, which increases the cost and occupies the area of the PCB board.The invention introduces a high -precisio...

AI Technical Summary

Problems solved by technology

If the clock frequency is too high, the state of the transistor may not change in time, resulting in deadlock or random misoperation

At the same time, due to the needs of the working state of the circuit, the phase of the clock needs to be adjusted. The existing clock phase adjustment usually relies on a separate chip, which increases the cost and occupies the area of ​​the PCB board.

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