Figure 23. CN3 audio connector
Table 21. CN3 audio connector pinout
Pin number Function / MCU port Pin number Function / MCU port
1 GND 2 3V3
3 DFSDM1_2_CKOUT (PB0) 4 DFSDM1_2_CKOUT (PB0)
5 DFSDM1_DATIN7 (PB9) 6 DFSDM1_2_DATIN1 (PB12)
7 DFSDM1_DATIN3 (PC7) 8 NC
9 NC 10 DETECTn (PI6)
11 NC 12 MEMS_LED (PH15)
13 NC 14 NC
15 NC 16 NC
17 NC 18 NC
19 3V3 20 GND
UM2569
CN3 audio connector
UM2569 - Rev 6
page 31/53
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