
Smart Machine Smart Decision
SIM5800_Hardware Design_V1.01
39
2018-10-08
Module
PMIC
MICBIAS0
MIC1P
4
175
C
R
R
R
R
C
C
R
C
MIC1N
MIC2P
5
178
Figure 30: MICBIAS0 Internal Circuit
Module
R
PMIC
MICBIAS1
EAR_MICP
6
176
C
Figure 31: MICBIAS1 Internal Circuit
4.13
USIM Card
SIM5800 supports dual cards dual standby, and card presence detection.
Table 16: Pin definitions of the USIM
Pin Name
Pin
I/O
Description
USIM2_DET
17
I
USIM2 presence detection
USIM2_RST
18
O
USIM2 reset
USIM2_CLK
19
O
USIM2 clock
USIM2_DAT
20
I/O
USIM2 data
USIM2_VDD
21
P
USIM2 power
USIM1_DET
22
I
USIM1 presence detection
USIM1_RST
23
O
USIM1 reset
USIM1_CLK
24
O
USIM1 clock
USIM1_DAT
25
I/O
USIM1 data
USIM1_VDD
26
P
USIM1 power