Quectel EM05-G - RF Characteristics; Cellular Antenna Interfaces

LTE Standard Module Series
EM05-G Hardware Design
EM05-G_Hardware_Design 49 / 69
The following figure shows a reference circuit for these four pins.
Host Module
CONFIG_0
CONFIG_1
CONFIG_2
CONFIG_3
GPIO
GPIO
GPIO
GPIO
21
69
75
1
VCC_IO_HOST
R1
10k
R2
10k
R3
10k
R4
10k
0Ω
NM-0Ω
NM-0Ω
0Ω
Note:
The voltage level of VCC_IO_HOST depends on the host side and could be 1.8 V or 3.3 V.
Figure 24: Recommended Circuit for Configuration Pins