Chengdu Ebyte Electronic Technology Co., Ltd.
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd
5
2. Specification and parameter
2.1 RF parameter
RF parameter
Value
Remarks
Working frequency
863MHz
～
928MHz
Support ISM band
Transmit power
16.5dBm
～
17.5dBm
The software is adjustable, and users need to
develop their own settings
Receive sensitivity
-98dBm
Air rate 500kbps
Modulation
FSK
Modulation technology
Blocking power
15dBm
The probability of burning at close range is
small
Audio sampling rate
60Hz~5KHz
There is a 12-bit ADC inside the chip
Reference distance
300m
Clear and open, antenna gain 5dBi, antenna
height 2.5 meters, air rate 500kbps
2.2 Electric parameter
Main parameter
Performance
Remarks
Min.
Typ.
Max.
Working voltage
(V)
2.3
3.3
5.5
≥5V can guarantee the output power, more than
5.5V will permanently burn the module
I/O voltage
-0.3
-
3.6
Exceeding 3.6V may permanently damage the
module I/O
Communication
level (V)
-0.3
3.3
3.6
Risk of burnout when using 5V level
Working
temperature (℃)
-40
-
+85
Industrial grade design
Power
consu
mptio
n
TX
current
（
mA
）
98
100
Instantaneous power
consumption, average current:
35mA
Instantaneous power consumption, average current:
35mA
RX
current
（
mA
）
44
45
Output connection 8ohm,
250mW speaker, maximum
volume 185mA
Output connection 8ohm, 250mW speaker, maximum
volume 185mA
