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

6.7.5

Audio jack connector

Figure 18 shows the audio jack connector (CN13).
Table 11 describes the audio jack connector (CN13) 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 STM32L562QEI6Q.
The STM32L562QEI6Q DFSDM interface is shared and exclusive between the embedded microphone (U13), the
MEMS expansion module on connector CN2 and with the STMod+ connector (CN3).
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
UM2617 - Rev 7
Figure 18. Audio jack connector (CN13)
Table 11. Audio jack connector (CN13) 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
Pin6: AOUTA (left)
Pin3: GND
Pin2: Microphone
Pin7: Not used
Pin4: AOUTB (right)
Pin5: Not used
Codec pin
MICIN1
GND
AOUTB
NA
AOUTA
NA
Configuration
UM2617
Audio
Audio jack
(CN13)
Function
Microphone IN
GND
OUT_SPEAKER_LEFT
-
OUT_SPEAKER_RIGHT
NA
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