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1.4. E73 (2G4M04S1D)
Parameter
Transmitting current
Receiving current
Turn-off current
Transmitting power
Receiving sensitivity
Recommended band
Voltage supply
Communication level
1.5. E73(2G4M08S1C)
Parameter
Transmitting current
TX only run current (DC/DC, 5 V, REG0 out = 3.3 V)P
RX only run current (DC/DC, 3 V) 1 Mbps / 1 Mbps BLE
Receiving current
RX only run current (DC/DC, 3 V) 2 Mbps / 2 Mbps BLE
Transmitting power
Receiving sensitivity
Recommended band
Voltage supply
Communication level
Note: The current is the current of the whole machine. 64 MHz CPU clock, 52 μA/MHz running from flash memory.
1.6. Parameter notes
1
When designing current supply circuit, 30% margin is recommended to be remained so as to ensure long-term stable operation of
the whole module.
2.
The current at the instant of transmitting may be high, but the total energy consumed may be lower due to very short transmitting
time.
3.
When using external antenna, the impedance matching degree at different frequency points between antenna and module may
affect the transmitting current at different levels.
4.
The current consumed when the RF chip is only working at receiving mode is called as receiving current. The tested receiving current
may be higher for some RF chips with communication protocol or when the developers have loaded their own protocol to the whole
module.
5.
The current at pure receiving mode is at mA level. To achieve µA level receiving current, the users need to manage it through
firmware development.
6.
The turn-off current is always lower than the current consumed when the power supply source of the whole module is at no-load
status.
7.
Each LRC component has ±0.1% error, and the error will accumulate since multiple LRC components are used in the whole RF circuit,
and the transmitting current will be different at different modules.
8.
The power consumption can be lowered by lowering the transmitting power, but the efficiency of the internal PA will be decreased
by lowering transmitting power due to various reasons
Copyright ©2012–2017，Chengdu Ebyte Electronic Technology Co., Ltd.
Min
13.0
11.3
0.5
3.6
-95.4
2379
2.1
2.1
Condition
TX only run current (DC/DC, 3 V) P
TX only run current (DC/DC, 3 V) P
TX only run current (DC/DC, 3 V)P RF = 0 dBm
-
-
-
-
-
Typ
14.0
12.6
1.0
4.0
-96.0
2430
3.3
3.3
Min
= +8 dBm
RF
= +4 dBm
RF
= 0dBm
RF
-103 dBm@BLE 125kbps （ long distance mode） 、 -95 dBm@BLE 1M
2360
1.7
0.7 X VDD
Max
15.4
13.8
2.5
4.5
-96.8
2496
3.6
3.6
Typ
Max
17.05
12.68
7.25
7.63
7.71
8.27
7
2402
24500
3.3
5.5
VDD
Unit
mA
mA
μA
dBm
dBm
MHz
V
V
Unit
mA
mA
dBm
dBm
MHz
V
V
5
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