Chengdu Ebyte Electronic Technology Co.,Ltd.
E28-2G4T27SX User Manual
Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.
4
2. Technical Parameters
2.1 Limit parameter
Main parameter
Performance
Note
Min
Max
Voltage supply [V]
2.3
5.5
Voltage over 5.5V will cause permanent damage to
module
Blocking power [dBm]
-
10
Chances of burn is slim when modules are used in
short distance
Operating temperature [℃]
-40
+85
-
2.2 Operating parameter
Main parameter
Performance
Note
Min
Typ
Max
Voltage supply [V]
2.3
5.0
5.5
≥5.0V ensures output power
Communication level [V]
-
3.3
-
For 5V TTL, it may be at risk of burning down
Operating temperature [℃]
-40
-
+85
-
Frequency [MHz]
2400
-
2500
ISM band
Power
consumption
Transmitting current
[mA]
-
500
-
Instant power consumption
Receiving current
[mA]
-
27
-
-
Turn-off current
[μA]
-
10
-
Software is shut down
Transmitting power [dBm]
26.5
27
27.5
Receiving sensitivity [dBm]
-130
-132
-134
Air data rate:
115.2Kbps
Air data rate
（
bps
）
1k
1k
2M
Defined by user via programming
Main parameter
Description
Note
Distance
5000m
Test condition
：
clear and open area, antenna gain: 5dBi
，
antenna
height: 2.5m
，
air data rate: 1kbps
FIFO
121 Btye
Max. Transmitting length per packet
221 Btye
Continuous transmission mode
Cache
2048 Byte
-
Modulation
GFSK
-
LoRa
-
FLRC
-
Interface
UART
TTL
Package
SMD
-
Connector
1.27mm
-
