Wi-Fi&BT Module Series
FG50V Hardware Design
FG50V_Hardware_Design 22 / 54
Table 4: Definition of Power Supply and GND Pins
Among them, VDD_CORE_VL, VDD_CORE_VM, VDD_CORE_VH, and VDD_IO can be powered by
either Quectel RG50xQ series or discrete power supply chips while VDD_RF can be powered by a
discrete power supply chip. The following figures show the two power designs. For more details, see
document [2]
.
VDD_WIFI_VL
VDD_WIFI_VM
VDD_WIFI_VH
VDD_EXT
VDD_CORE_VL
VDD_CORE_VM
VDD_CORE_VH
VDD_IO
RG50xQ
FG50V
VDD_RF
Typ. 3.85 V output
DC-DC
e.g. DC 5 V input
Figure 3: Power Reference Design with RG50xQ Series
Pin Name
Pin No.
Description
Min.
Typ.
Max.
Unit
VDD_CORE_VL
1, 2, 47
0.95 V power supply for the
module’s main part
0.9
0.95
1.0
V
VDD_CORE_VM
45
1.35 V power supply for the
module’s main part
1.28
1.35
1.42
V
VDD_CORE_VH
46
1.95 V power supply for the
module’s main part
1.85
1.95
2.05
V
VDD_IO
43
1.8 V power supply for the
module’s I/O pins
1.7
1.8
1.9
V
VDD_RF
19, 20, 63
3.85 V power supply for the
module’s RF part
3.3
3.85
4.25
V
GND
6, 24, 26, 27, 29, 30, 31, 32, 34, 44, 51, 66, 67, 69, 70, 74, 75, 85–108
