Chengdu Ebyte Electronic Technology Co,;Ltd
E70-900T30Suser manual
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co,;Ltd
5
2. Specification and parameter
2.1 Limit parameter
Main parameter
Performance
Remark
Min.
Max.
Power supply
（
V
）
0
5.5
Voltage over 3.8V 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
）
2.2
3.3
5.5
≥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
（
MHz
）
861
-
922.5
Support ISM band
Power
consumptio
n
Transmitting current [mA]
-
610
-
Instant power consumption
Receiving current [mA]
-
14
-
-
Turn-off current [μA]
-
4
-
Software is shut down
Max Tx power
（
dBm
）
29.5
30
30.5
-
Receiving sensitivity
（
dBm
）
-109
-110
-111
Air data rate is 5kbps
Air data rate
（
bps
）
2.5k
2.5k
168k
Controlled via user’s programming
Main parameter
Description
Remark
Distance for reference
6000m
Test condition
：
clear and open area, antenna gain: 5dBi
，
antenna height: 2.5m
，
air data rate: 2.5kbps
TX length
Transmission mode specification See transmission mode for details
Buffer
2048Byte
-
Modulation
GFSK
-
Communication interface
UART
-
Package
SMD
-
