Chengdu Ebyte Electronic Technology Co.,Ltd.
E75-2G4M20S User Manual
Copyright ©2012–2018
Chengdu Ebyte Electronic Technology Co.,Ltd.
2
Wireless alarm security system
;
Building automation solutions
;
Tire pressure monitoring;
Health care products
;
Wireless audio and wireless earphone.
2. Technical Parameters
2.1 Limit parameter
Main parameter
Performance
Note
Min
Max
Voltage 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
Note
Min
Typ
Max
Voltage supply [V]
2.0
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
Frequency [MHz]
2405
-
2480
ISM band
Power
consumption
Transmitting current
(
mA
)
145
Instant power consumption
Receiving current
(
mA
)
26
Stand-by current
(
μA
)
2
Software is shut down
Transmitting power [dBm]
19.6
20.0
20.5
Receiving sensitivity [dBm]
-98.5
-100
-102
Main parameter
Description
Note
Distance
1000m
Test condition
:
clear and open area, antenna gain: 5dBi
,
antenna height: 2.5m