Developing Notice - Ebyte E78-915LN22S (6601) User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.

2.4 Developing Notice

When designing the power supply circuit for the module, it is often recommended to reserve more than 30% of the margin, so

that the whole machine can work stably for a long time;
The current required at the moment of launch is larger, but often because the launch time is extremely short, the total energy

consumed may be smaller;
When the customer uses an external antenna, the impedance matching degree between the antenna and the module at different

frequency points will affect the size of the emission current to varying degrees;
The current consumed by the RF chip when it is in the pure receiving state is called the receiving current. Some RF chips with

communication protocols or developers have loaded some self-developed protocols on the whole machine, which may cause the
receiving current of the test to be too large;
The shutdown current is often far less than the current consumed by the power supply part of the whole machine when it is not

loaded, so it is not necessary to be too demanding;
Due to the material itself has a certain error, a single LRC element has an error of ±0.1%, but hesitant to use multiple LRC

elements in the entire RF circuit, there will be accumulation of errors, resulting in the difference between the transmitting current
and the receiving current of different modules;
Reducing the transmit power can reduce power consumption to a certain extent, but reducing the transmit power transmission

will reduce the efficiency of the internal PA for many reasons.
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E78-915LN22S(6601) User Manual
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