ST STM32H7B3I-DK - Audio Jacks

9.11 CN5 audio green jack - line out
A 3.5 mm stereo audio green jack output CN5 is available on the STM32H7B3I-DK board to support headphones.
Figure 25. CN5 stereo headset with a microphone jack
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Table 24.
CN5 audio jack connector pinout (Onboard)
Pin number Description Stereo headset with microphone pinning
1 NC NA
2 NC NA
3 GND GND
4 OUT_Right SPK_R (33 Ω typical)
5 NC NA
6 OUT_Left SPK_L (33 Ω typical)
9.12 CN6 audio blue jack - line in
A 3.5 mm stereo audio blue jack output CN6 is available on the STM32H7B3I-DK board for audio line input.
Figure 26. CN6 stereo headset with a microphone jack
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UM2569
CN5 audio green jack - line out
UM2569 - Rev 1
page 35/54