Chengdu Ebyte Electronic Technology Co., Ltd. E28-2G4M12S User Manual
Copyright ©2012–2018
,
Chengdu Ebyte Electronic Technology Co.,Ltd. 3
2.Specification and parameter
2.1 Limit parameter
Main parameter
Performance
Remark
Min.
Max.
Power supply
(
V
)
0
3.6
Voltage over 3.6V 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
Remark
Min.
Typ.
Max.
Operating voltage
(
V
)
1.8
3.3
3.6
≥3.3 V ensures output power
Communication level
(
V
)
-
3.3
-
For 5V TTL, it may be at risk of burning down
Operating temperature
(
℃
)
-40
-
85
Industrial design
Operating frequency
(
M Hz
)
2400
2430
2500
Support ISM band
Power
consumpti
on
TX current
(
mA
)
-
45
-
Instant power consumption
RX current
(
mA
)
-
10
-
-
Sleep current
(
μA
)
-
2.0
-
Software is shut down
M ax Tx power
(
dBm
)
12
12.5
14
-
Receiving sensitivity
(
dBm
)
-126
-128
-130
air data rate:595kbps
Air data rate
LoRa24
(
bps
)
0.476k
-
202K
Programming
FLRC
(
bps
)
130k
-
1.3M
Programming
FSK
(
bps
)
125k
-
2M
Programming
Main parameter
Description
Remark
Distance for reference
3000m
Test condition
:
clear and open area, antenna gain: 5dBi
,
antenna height: 2.5m
,
air data rate: 595kbps
FIFO
256Byte
M ax length transmitted each time
Crystal frequency
52M Hz
-
M odulation
LoRa
TM
(recommended)
GFSK M ode
,
FLRC M ode
,
LoRa M ode
Package
SM D
-
Connector
1.27mm
IPEX/PCB
Communication interface
SPI
0-10M bps
Size
25* 14*0.8 mm
-
Antenna
Stamp hole
50 ohm impedance