3.75G以上不会有这个延时,以下低频是会有,改变频率校准方式也没有变化。
如下四种方式都试过了,并没有作用。
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3.75G以上不会有这个延时,以下低频是会有,改变频率校准方式也没有变化。
如下四种方式都试过了,并没有作用。
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Close Frequency Assist
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您好,是否按照这个初始化过程步骤进行的?
1. Apply power to device.
2. Program RESET = 1 to reset registers.
3. Program RESET = 0 to remove reset.
4. Program registers as shown in the register map in REVERSE order from highest to lowest.
5. Wait 10 ms.
6. Program register R0 one additional time with FCAL_EN = 1 to ensure that the VCO calibration runs from a stable state.
其中第六步,当 FCAL_EN = 1 时,再对R0编程一次,保证VCO校验达到稳定状态。