(该芯片推荐晶振负载电容为:最小值5pF,典型值7pF,最大值9pF)
关于芯片对晶振外接匹配电容的配置要求,需要仔细阅读芯片手册相关内容。
举例:某款芯片对晶振外接电容配置说明如下:
On-chip default connected capacitance including reference design parasitic capacitance. Connected internal capacitance is changed through software in the Customer Configuration section (CCFG).
默认为连接外部电容,设计电路时应包括寄生电容在内。可通过客户端配置(CCFG)来更改及连接内部可调电容。
Adjustable load capacitance is integrated into the device.
芯片内部集成可调负载电容。