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FIBOCOM SU806 Series Hardware Guide
Page 23 of 91
Pin Name
Pin
Number
I/O
Functional Description
Note
Audio interface
SPK_P
10
AO
Speaker amp + output
-
SPK_M
11
AO
Speaker amp - output
-
EAR_P
8
AO
Earpiece PA + output
-
EAR_M
9
AO
Earpiece PA - output
-
HPH_L
138
AO
Headphone PA left channel
output
-
HPH_GND
137
-
Headphone PA ground sensing
-
HPH_R
136
AO
Headphone PA right channel
output
-
HPH_DET
139
AI
Headset detection
-
MIC2_P
6
AI
Headset MIC difference input +
-
MIC1_M
5
AI
MIC1 difference input -
-
MIC1_P
4
AI
MIC1 difference input +
-
MIC_BIAS1
219
AO
MIC bias1
-
MIC3_P
220
AI
Sub-MIC difference input +
-
MIC_BIAS2
227
AO
MIC bias2
-
Antenna interface
ANT_MAIN
87
AI/AO
2G/3G/4G main antenna
-
ANT_DRX
131
AI
Diversity reception antenna
-
ANT_WIFI/BT
77
AI/AO
WIFI/BT antenna
-
ANT_GNSS
121
AI
GNSS antenna
-
Interrupt interface
ALPS_INT_N
107
DI
Ambient light sensor and
proximity sensor interrupt
-
MAG_RST
109
DO
Magnetic sensor reset
-