Crystal oscillator

What is the function of the series resistor of the output of the active crystal?

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Generally, large companies have minimalist designs for their hardware circuits, which are the result of long-term experience, in order to reduce repetitive work and ensure product quality. People basically draw a direct copy of the module circuit, the review of the people also in accordance with the standard circuit check, so that you do not have to consider how to design each time. You said the crystal output string resistance from the minimum design, for the most important part of the digital circuit clock source, special attention should be paid to ensure signal integrity, minimum design of the crystal peripheral circuit in addition to the resistor to have some other devices.

Crystal oscillator

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