Digital Microphone Interface; Table 11. Cn13 Audio Jack Connector Pinout; Table 12. I/O Configuration For The U13 Audio Mems; Table 13. Cn13 Audio Jack Connector Pinout - ST STM32L562E-DK User Manual

Table 11 describes the CN13 audio jack connector pinout.
Pin
2
3
4
5
6
7
6.7.6

Digital microphone interface

A low power digital microphone U16 is available on STM32L562E-DK.
The interface used for this microphone is the DFSDM1 with DFSDM1_CKOUT and DFSDM1_DATIN1. The
microphone is supplied with a programmable clock directly generated by STM32L562QEI6QU.
The STM32L562QEI6QU DFSDM interface is shared and exclusive between the embedded microphone U13, the
MEMs expansion module on connector CN2 and with the CN3 STMod+ connector.
A quad SPDT switch U2 driven by a jumper JP1 routs the DFSDM interface to the selected application.
Table 12 describes the I/O configuration for the Audio DFSDM interface.
I/O
PG7
PB12
Table 13 describes the I/O configuration for the Audio DFSDM interface.
Function
GND
-
DFSDM DATA3
-
-
-
-
-
-
3V3
UM2617 - Rev 2
Table 11. CN13 audio jack connector pinout
Signal name
MIC_IN
GND
AOUTB
-
AOUTA
-
Table 12. I/O configuration for the U13 AUDIO MEMS
PG7 used as DFSDM_CKOUT
PB12 used as DFSDM_DATIN1
Table 13. CN13 audio jack connector pinout
STM32
Signal name
pin
- GND
- -
PC7 DFSDM_DATIN3
- -
- -
- -
- -
- -
- -
- 3V3
Codec pin
MICIN1 Microphone IN
GND GND
AOUTB OUT_SPEAKER_LEFT
NA -
AOUTA OUT_SPEAKER_RIGHT
NA NA
Configuration
Pin Pin Signal name
1 2 3V3
3 4 DFSDM_CKOUT_EXT
5 6 DFSDM_DATIN1_EXT
7 8 -
9 10 DETECTn
1 12 MEMS_LED
13 14 -
15 16 -
17 18 -
19 20 GND
UM2617
Audio
Function
STM32
Function
pin
- 3V3
PG7 DFSDM CLK
PB12 DFSDM DATA1
- -
Module
-
detection
PH1 Module LED
- -
- -
- -
- GND
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