Wireless-tag SigmaStar SSD201 - 3.7 AUDIO Interface

SSD201/202 7-inch Smart Display User manual
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connector. The pin definitions of the speaker interface is shown in Table 9:
Figure 8. DMIC interface diagram
Table 9. DMIC interface definition
Pin No.
Pin definition
Description
1
3.3V
3.3V
2
GND
GND
3
NC
NC
4
GND
GND
5
DMIC_CLK
Clock signal
6
DMIC_R
7
DMIC_L
8
NC
NC
9
NC
10
NC
3.7 AUDIO Interface
The motherboard leads out an analog microphone interface through a 2Pin horizontal MX1.25
connector. The interface pin definitions are shown in Table 10:
Figure 9. DMIC interface diagram
Table 10. DMIC interface definition
Pin No.
Pin definition
Description
1
DMIC+
MIC Right channel input
2
DMIC-
MIC Left channel input