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LDO22_2P8
14
3, 4, 18,
20, 31,
34, 35,
40, 43,
47, 56,
62, 87,
98, 101,
112, 125,
128, 130,
GND
133, 135,
148, 150,
159, 163,
170, 173,
176, 182,
193, 195,
219, 225,
243,
257~323
Audio Interfaces
Pin Name
Pin No.
MIC_BIAS
167
MIC1_P
44
MIC1_N
45
MIC_GND
168
MIC2_P
46
SC600Y&SC600T_Hardware_Design
2.8V output power
PO
supply
Ground
I/O
Description
Microphone bias
AO
voltage
Microphone positive
AI
input for channel 1
Microphone negative
AI
input for channel 1
Microphone
reference ground
Microphone positive
AI
input for headset
Smart LTE Module Series
SC600Y&SC600T Hardware Design
used.
If unused, keep this
pin open.
Power supply for
AVDD of cameras.
Add a 1.0uF~4.7uF
Vnorm=2.8V
bypass capacitor if
I
max=150mA
O
used.
If unused, keep this
pin open.
DC
Comment
Characteristics
V
=1.6V~2.85V
O
If unused, connect
this pin to the ground.
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