Quectel SC200L-EM Hardware Design page 14

HPH_L 138
HS_DET 139
HPMIC_DET 150
MIC_BIAS1 147
MIC3_P 152
MIC3_N 151
MIC_BIAS2 149
USB Interface
Pin Name Pin No.
USB_VBUS 141、142 PI
USB_DM 13
USB_DP 14
USB_ID 16
(U)SIM Interface
Pin Name Pin No.
USIM2_DET 17
SC200L_Hardware_Design
Headphone left
AO
channel output
Headset insertion
AI
detection
Headphone
AI microphone
detection
Microphone bias1
PO
voltage
Microphone input for
AI secondary
microphone (+)
Microphone input for
AI secondary
microphone (-)
Microphone bias2
PO
voltage
I/O Description
USB power supply
AI/A USB differential data
O bus (-)
AI/A USB differential data
O bus (+)
USB ID detection of
DI
the input
I/O Description
(U)SIM2 card plug
DI
detection
SC200L Hardware Design
V = 2.20~3.00 V
O
Vnorm = 2.50 V
V = 2.20~3.00 V
O
Vnorm = 2.80 V
DC
Characteristics
Vmax=9.2V
Vmin=4.5V
Vnorm=5.00V
USB 2.0 standard
compliant.
DC
Characteristics
V max=0.48V
IL
V min=1.39V
IH
The default is high.
Comment
Used for USB 5V
power input and USB
detection.
90Ω differential
impedance.
High level by default.
Comment
Active low.
If it is not used, keep
it open. This function
is turned on by
default.
It can be used as
ordinary GPIO.
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