PCB for stable clock signal and its wiring method

Abstract

The invention discloses a PCB with a stable clock signal. The PCB is provided with a processor, a crystal oscillator, a first signal line and a second signal line, and the processor includes a first pin and a second pin; The crystal oscillator includes a first pin and a second pin; the first signal line connects the first pin to the first pin; the second signal line connects the second pin to the The second pins are connected together; the lengths of the first signal line and the second signal line are equal; and the first signal line and the second signal line are arranged as an arc. The invention also discloses a PCB wiring method for stabilizing the clock signal. The invention protects the clock signal from interference by rationally wiring the processor and the crystal oscillator on the PCB, thereby stabilizing the frequency of the clock signal and further stabilizing the program operation of the electronic equipment.

Description

technical field [0001] The invention relates to the field of PCB wiring, in particular to a PCB with a stable clock signal and a wiring method thereof. Background technique [0002] With the development of science and technology, electronic equipment has gradually become popular and entered thousands of households. As long as there is a processor in the electronic equipment, the processor must be provided with a clock signal by the crystal oscillator before the processor can work normally. At present, when designing the PCB (Printed Circuit Board: Printed Circuit Board) of electronic equipment with a processor, the wiring of the crystal oscillator is often not taken seriously, and it is considered complete only after it is passed through, leaving hidden dangers, especially In high-frequency circuits, sloppy crystal oscillator wiring will cause the frequency of the clock signal to tremble, resulting in product instability. For example: the clock signal provided by the crystal...

AI Technical Summary

Problems solved by technology

At present, when designing the PCB (Printed Circuit Board: Printed Circuit Board) of electronic equipment with a processor, the wiring of the crystal oscillator is often not taken seriously, and it is considered complete only after it is passed through, leaving hidden dangers, especially In high-frequency circuits, sloppy crystal oscillator wiring will cause the frequency of the clock signal to tremble, resulting in product instability. For example: the clock signal provided by the crystal oscillator is easily interfered by other signals, and it fails in the electromagnetic interference experiment; or Run the program correctly when debugging, but run the program incorrectly when it is working normally; even restart, timing error or crash for unknown reasons

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