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CC2630 Vin 3.3V时射频无法发出,无法组网

Other Parts Discussed in Thread: CC2630, Z-STACK-ARCHIVE

Hi,

使用CC2630F128RGZR(7X7)做Zigbee的节点,调试时遇到一些问题,请帮忙给些建议,谢谢!

当供电电压达到3.3V,射频无法发出,无法组网,当手接触到PCB Trace天线,射频就可以发出。

当供电电压为3V时,射频可以发出。

测试TI的CC2630EVM不存在此问题。

PS: PCB板尺寸较小,而且是2层板。

线路图如下

请帮忙看看可能是哪里有问题,如何改善?谢谢!