Chengdu Ebyte Electronic Technology Co.,Ltd
E22-900M22S User manual
Copyright ©2012–2018
，Chengdu Ebyte Electronic Technology Co.,Ltd
3
Advanced Meter Reading Architecture (AMI);
Applications in the automotive industry.
Chapter 2 Specifications
2.1 Limit parameters
mainly parameters
Performance
Notes
Min
Max
Power Supply Voltage（V）
0
3.7
Permanently burn module over 3.7V
Blocking power（dBm）
-
10
At close range, the burn
probability is low
Operating temperature（℃）
-40
85
Product net weight
0.5g±0.02g
Product net weight
2.2 Working parameters
mainly parameters
Performance
Notes
Min
Typical
values
Max
Power Supply Voltage（V）
1.8
3.3
3.7
≥3.3V Can ensure the output power
communication level（V）
3.3
Using 5V TTL may burn out
Working temperature（℃）
-40
-
85
Industrial grade design
Working frequency bandGHz）
850
868/915
930
Support ISM Frequency
Power
consumption
Emission current（mA）
119
instantaneous power consumption
Receives the current（（mA）
6.8
Sleep current（μA）
185
software shut off
Maximum transmitted power（dBm）
21.4
21.5
22.3
Sensitivity of reception（dBm）
-144
-146
-147
air rate is 0.3kbps
air rate（bps）
0.6k
-
300k
User programming control
0.018k
62.5k
User programming control
mainly parameters
Description
Notes
Distance
7000m
Clear and open environment, antenna gain 5dBi, antenna
height 2.5m, air speed 0.3kbps.
FIFO
256Byte
Maximum sending length
Crystal frequency
32MHz
