QDS-9400 - User Guide, Rev. 1.0
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7.4.
Microphone Input Wafer (MIC)
The microphone input wafer provides microphone (Mic-In) signals through the 2-pin 2.0 mm pitch wafer MIC.
Figure 17: Microphone Input Wafer (MIC)
Table 21: Pin Assignment (MIC)
Pin
Signal
Description
Note
1
MC_P
Microphone input signal (+)
2
MC_N
Microphone input signal (-)
7.5.
UART Wafers (UART0 & UART4)
The 4-pin 2.0 mm pitch UART wafer UART0 and UART4 provide a serial data link between a transmitter and a receiver.
Figure 18: UART Wafers (UART0, UART4)
Table 22: Pin Assignment (UART0, UART4)
Pin
Signal
Description
Note
1
5V
+5 V power supply
2
TX
Serial Data Transmitter
3
RX
Serial Data Receiver
4
GND
Ground
