Chengdu Ebyte Electronic Technology Co., Ltd E34-2G4H27D User Manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co., Ltd
4
2. Specification and parameter
2.1 Limit parameter
Main parameter
Performance
Remark
Min.
Max.
Power supply
（
V
）
0
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
Remark
Min
Typ.
Max.
Operating voltage
（
V
）
3.3
5.0
5.5
≥5.0 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
（
MHz
）
2400
-
2518
Power
consumption
Transmitting current
[mA]
400
Instant power consumption
Receiving current
[mA]
21
Turn-off current [μA]
510
Software is shut down
Max Tx power
（
dBm
）
26.5
27.0
27.5
Receiving sensitivity
（
dBm
）
-101
-102
-103
Air data rate is 250kbps
Air data rate
（
bps
）
250k
250k
2M
The higher the rate, the lower the distance
Main parameter
Description
Remark
Distance for reference
5000m
Test condition
：
clear and open area, antenna gain: 5dBi
，
antenna height:
2.5m
，
air data rate: 250kbps
TX length
27 Byte
Maximum capacity of single package
Buffer
256 Byte
Modulation
GFSK
Communication interface
UART
TTL level
Package
DIP
Connector
2.54mm
Size
21*36mm
Antenna
SMA-K
50 ohm impedance
