Product Info

SC200L Hardware Design
SC200L_Hardware_Design 14 / 103
HPH_L 138 AO
Headphone left
channel output
HS_DET 139 AI
Headset insertion
detection
The default is high.
HPMIC_DET 150 AI
Headphone
microphone
detection
MIC_BIAS1 147 PO
Microphone bias1
voltage
V
O
= 2.20~3.00 V
Vnorm = 2.50 V
MIC3_P 152 AI
Microphone input for
secondary
microphone (+)
MIC3_N 151 AI
Microphone input for
secondary
microphone (-)
MIC_BIAS2 149 PO
Microphone bias2
voltage
V
O
= 2.20~3.00 V
Vnorm = 2.80 V
USB Interface
Pin Name Pin No. I/O Description
DC
Characteristics
Comment
USB_VBUS
141、142
PI USB power supply
Vmax=9.2V
Vmin=4.5V
Vnorm=5.00V
Used for USB 5V
power input and USB
detection.
USB_DM 13
AI/A
O
USB differential data
bus (-)
USB 2.0 standard
compliant.
90Ω differential
impedance.
USB_DP 14
AI/A
O
USB differential data
bus (+)
USB_ID 16 DI
USB ID detection of
the input
High level by default.
(U)SIM Interface
Pin Name Pin No. I/O Description
DC
Characteristics
Comment
USIM2_DET 17 DI
(U)SIM2 card plug
detection
V
IL
max=0.48V
V
IH
min=1.39V
Active low.
If it is not used, keep
it open. This function
is turned on by
default.
It can be used as
ordinary GPIO.