Chengdu Ebyte Electronic Technology Co., Ltd.
E73-2G4M04S1F User manual
Copyright ©2012–2021，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
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
Industrial grade
2.2 Operating parameter
Main parameter
Performance
Remark
Min.
Typ.
Max.
Operating voltage
（
V
）
1.8
3.3
3.6
≥3.3 V can ensures output power
Communication level
（
V
）
-
3.0
-
For 5V TTL, it may be at risk of burning
down
Operating temperature
（
℃
）
-40
-
85
Industrial design
Operating frequency
（
MHz
）
2379
2430
2496
Support ISM band
Power
consumption
TX current
（
mA
）
-
18
-
Instant power consumption
RX current
（
mA
）
-
13
-
-
Sleep current
（
μA
）
-
2
-
Software is shut down
Max Tx power
（
dBm
）
3.8
4
4.1
-
Receiving sensitivity
（
dBm
）
-104dBm @ BLE 125kbps
Long ditance mode
-97dBm @ BLE 1Mbps
-
Main parameter
Description
Remark
Distance for reference
120m
Test condition
：
clear and open area, antenna gain: 5dBi
，
antenna height: 2.5m
，
air data rate: 1Mbps
Crystal frequency
32MHz / 32.768KHz
Support protocal
BLE 5.1/IEEE 802.15.4-2006
Package
SMD
Connector
1.27mm
IC
nRF52811-QFAA/QFN48
FLASH
192KB
RAM
24KB
kernel
ARM CORTEX-M4
Size
17.5 * 23.5 mm
Antenna
PCB/IPEX
Default PCB antenna; Impedance is about 50 ohms
