Product Info

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