Ebyte E49-900M20S, Руководство пользователя, Страница: 5 / 12

Chengdu Ebyte Electronic Technology Co.,Ltd. E49-900M20S user manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
4
Chapter 2 Specification and parameters
2.1 Limit parameter
Chart 2-1 limit paremeters
Main parameters
Performance
Remark
Min Max
Power supply
（
V
）
0 3.6
Voltage over 3.6V will cause permanent
damage to module
Operating temperature
（℃）
-40 +85 Industrial-grade
2.2 Operating parameter
Chart 2-2 Operating parameters
Main parameters
Performance
Remark
Min Type Max
Power supply
（
V
）
1.8 3.3 3.6
Voltage over 3.6V will cause permanent
damage to module
Communication level
（
V
）
- 3.3 -
For 5V TTL, it may be at risk of burning
down
Operating temperature
（℃）
-40 - +85 Industrial grade
Operating frequency
（
MHz
）
850 868 930
-
Power
Consump
- tion
TX current
（
mA
）
- 75 - @TX power 20dBm
RX current
（
mA
）
- 8.5 - -
Sleep current
（
nA
）
300 300 800 -
Max TX power
（
dBm
）
-
20 - -
Receiving sensitivity
（
dBm
） -116
-117 -118 @Air data rate is 1.2kbps
Main parameters Description Remark
Reference distance 3km
Test condition
：
clear and open area, antenna height: 2.5m
，
air
data rate 2.4kbps
Crystal Oscillator 26MHz -
Package SMT -
Communication interface SPI -
Size 20*14mm -
Antenna
IPEX/stamp
hole
50 ohm impedance
Weight 1.2
±
0.1g -