Parameter Description - Ebyte E78-868LN22S Manual

Chengdu Ebyte Electronic Technology Co., Ltd.
Crystal frequency
Modulation
Packaging method
Interface mode
Communication Interface
Dimensions
Antenna interface

2.4 Parameter description

When designing the power supply circuit for the module, it is often recommended to retain more than 30% margin,

which is conducive to long-term stable operation of the whole machine;
The current required at the moment of transmission is large, but often because the transmission time is extremely

short, the total energy consumed may be smaller;
When customers use an external antenna, the impedance matching between the antenna and the module at different

frequencies will affect the magnitude of the transmission current to varying degrees;
The current consumed when the RF chip is in a 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 device,
which may cause the receiving current of the test to be too large;
The shutdown current is often much smaller than the current consumed by the power supply of the whole machine

when it is not loaded, so there is no need to be overly demanding.
Since the material itself has certain errors, a single LRC component has an error of ±0.1%. However, if multiple

LRC components are used in the entire RF circuit, errors will accumulate, resulting in differences in the
transmitting current and receiving current of different modules;
Reducing the transmit power can reduce power consumption to a certain extent, but due to many reasons, reducing

the transmit power will reduce the efficiency of the internal PA.
Copyright © 2012–2023 , Chengdu Ebyte Electronic Technology Co., Ltd.
32MHz
L o R a
GFSK Mode, FLRC Mode, LoRa Mode
(recommended)
SMD type
1.27mm
SPI 0 ～ 10Mbps
20*14mm
IPEX/ stamp
Equivalent impedance is about 50 Ω
hole
E78-868LN22S User Manual
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