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USER MANUAL v1.0
Date: 01/20/2014
Page | 21
2.3.4
Microphone Input Jack
The RIoTboard provides a 3.5mm stereo connector for a microphone input, as shown in
Figure 2-5. A mono microphone will input its signal though the tip of the 3.5mm plug.
Figure 2-5 MIC Input
Table 2-4 MIC Input Jack
J4
Pin
Signal
Function
1
GND_ANALOG
Analog GND
2
MIC_IN_P
MIC input analog GND
3
GND_ANALOG
Analog GND
4
GND_ANALOG
Analog GND
5
MIC_IN_P
MIC input analog GND