Audio Interfaces; Front Audio Header; Audio Jack (4-Pole); Table 16 X28 - Front Audio Header Pinout Description - Congatec conga-HPC/3.5-Mini User Manual

4.12

Audio Interfaces

The conga-HPC/3.5-Mini features either a high definition audio (HDA) codec (Realtek ALC888S-VD) by default. Optionally, I2S codec (Cirrus
Logic WM8904) can be featured instead (assembly option). Both codecs support the front audio header (X28) and 4-pole audio jack (X44).
SoundWire ® signals are provided on header X53.
4.12.1

Front Audio Header

The conga-HPC/3.5-Mini features a front audio header (X28).
Table 16 X28 - Front Audio Header Pinout Description
Pin Signal
1 LINE2_R
2 LINE2_L
3 A_GND
4 SENSE_B_HPOUT
5 SENSE_B_MIC
6 A_GND
7 MIC2_L
8 MIC2_R
Connector Type
X28: 1.25 mm pitch, 8x1-pin female connector
4.12.2

Audio Jack (4-Pole)

The conga-HPC/3.5-Mini features a 4-pole audio jack (X27) for a 3.5 mm CTIA standard plug.
Table 17 X27 - Audio Jack Pinout
Pin Jack Signal
1 Tip LINE_L
2 Ring 1 LINE_R
3 Ring 2 A_GND
4 Sleeve MIC
Connector Type
X27: 3.5 mm, 4-pole CTIA standard plug
Copyright © 2024 congatec GmbH
Description
Analog line / headphone output - right channel
Analog line / headphone output - left channel
Analog ground
Headphone jack detection
MIC jack detection
Analog ground
Analog microphone input - left channel
Analog microphone input - right channel
Description
Line-OUT - left channel
Line-OUT - right channel
Analog ground
Microphone
X28
Pin 1
X27
Pin 1
Pin 2
Pin 3
Pin 4
FMC1m001
CTIA Standard Plug
Tip
Ring 1
Ring 2
Sleeve
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