LG PRADA KE850 - Camcorder Functions; Using the Camcorder; Camcorder Menu Options

3. TECHNICAL BRIEF
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3.13.2. Microphone circuit
3.14. Multi port switch
Multi port switch has employed to decrease MMI(Multi Media Interface) connector’s pin number. USB,
USART, Remote controlled Headset is connected via this multi port switch. When USB VBUS voltage
is detected Multi port 0 and 1 is connected to USB_DP and USB_DM each. If the remote controlled
headset is plugged into MMI connector, then multi port 0 and 1 in go through REMOTE_INT and
REMOTE_ADC.
2
G1
3
G2
1
O
4
P
SPM0204HE5-PB-3
MIC101
2
3
4
5
6
78
9
10
11
12
13
14
CN101
1
VA102VA101
27p
C102
27p
C101
LED_R
PWRON
VA205 VA206
VA204
120
FB201
C225
1u
C222 0.1u
VA201
VA202 VA203
C223
27p
0
R226
4
5
6
78
9
10
11
12
13
14
CN202
1
2
3
C221
39p
C220 0.1u
FB202
120
MICP
LED_R
MICN
VMICP
PWRON
Figure 22 Microphone circuit