由于pcba 元器件等有偏差,导致最终的通信频率有偏差,cc2500 有没机制实现对通信频率的校准?
Due to the deviation of PCBA components, the final communication frequency will be deviation. Does CC2500 have a mechanism to calibrate the communication frequency?
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您好,
cc2500 有没机制实现对通信频率的校准?
有内置的频率校准机制,称为 Frequency Synthesiser Calibration(FSCAL),通过微调内部的频率合成器来校准通信频率,参考手册:https://www.ti.com.cn/cn/lit/ds/symlink/cc2500.pdf
可以看下这个FAQ和帖子:
如果需要更详细的实现步骤我需要咨询一下 E2E 论坛的工程师。
以下来自E2E的回复:
您是指 VCO/PLL 校准还是指由于 xtal 电容器容差/变化导致的频率偏移?
这是有关 CC2500 校准:e2e.ti.com/.../cc2500emk-cc2500-calibration-solutions-and-faqs-required