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SC806Hardware User ManualPage24 of 70
MIC2_P
6
AI
Headphone MIC input
HPH_DET
139
AI
Headphone plug detect
HPH_GND
137
Headphone ground
MIC1_P
4
AI
Main MIC input
MIC_GND
5
GND
MIC ground
MIC3_P
195
AI
Auxiliary MIC input
MIC_BIAS1
210
AO
MIC
offset
reference
voltage
Only digital MIC uses it, so keep it floating
when not in use
Antenna interface
Pin Name
Pin No.
I/O
Pin Description
Note
ANT_MAIN
87
I/O
2G/3G/4G main antenna
ANT_DRX
131
AI
Diversity
receiving
antenna
ANT_BT/WIFI
77
I/O
WIFI/BTantenna
ANT_GNSS
121
AI
GNSS antenna
Module has built-in LNA with passive
antenna
Other interfaces
Pin Name
Pin No.
I/O
Pin Description
Note
VIB_DRV_N
28
PO
Motor drive pin
Connect to motor negative
FORCE_BOOT
46
DI
Forced pin
High level (1.8V) effect
ADC
128
AI
ADC detection pin
Input voltage range 0.1~4.5V
GPIO interface
Pin Name
Pin No.
I/O
Pin Description
Note
GPIO_0
105
I/O
Ordinary GPIO, 1.8V
power domain
B-PD:nppukp
GPIO_8
119
I/O
B-PD:nppukp
GPIO_9
118
I/O
B-PD:nppukp
GPIO_10
117
I/O
B-PD:nppukp