你好,
我对NFM的当前消费有一个问题。我做了没有NFM的测量,我没有看到电力的焦点减少。输出功率为-20dBm,因此通常您有100倍。
我还发现关于近场模式的帖子
https://support.dialog-seminile.com/power-consumption-near-field-mode.
你给我一个答案,为什么没有减少功耗?
激活NFM的优势是什么,如果它只减少了通信范围,但没有功耗?
希望我快速回复。
此致
大卫
设备:
你好,
我对NFM的当前消费有一个问题。我做了没有NFM的测量,我没有看到电力的焦点减少。输出功率为-20dBm,因此通常您有100倍。
我还发现关于近场模式的帖子
https://support.dialog-seminile.com/power-consumption-near-field-mode.
你给我一个答案,为什么没有减少功耗?
激活NFM的优势是什么,如果它只减少了通信范围,但没有功耗?
希望我快速回复。
此致
大卫
嗨Davidw,
The reason why there is no reduction in power consumption is that the DA14580 doesn't change the power of the RF amplifier because it isn’t possible to implement it in this design, but it puts the devices RX/TX switch to RX mode during transmission. This reduces the output power on the RFIOp pin, while the RFPA is still consuming the same power. So the only advantage of activating NFM is that the chip can be connected with a device very close to it (less than 10cm). This can be considered as a kind of added security.
谢谢,PM_DIALOG.