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The following table shows the pin definition of headset interface.
Table 17: Pin Definition of Headset Interface
Pin No.
Pin Name
1
MIC
2
GND
3
R-AUDIO
4
DETECT
5
L-AUDIO
6
GND
The following figure shows the sketch design of audio plug which suits for the audio jack on Smart EVB
G5.
4.7.3. Earphone Interface
Smart EVB G5 provides one earphone interface and the earphone is soldered onto the Smart EVB G5 via
test point J1204. The following figure shows a reference circuit design for earphone interface.
Smart_EVB_G5_User_Guide
Description
Positive microphone input
Dedicated GND for audio
Headset right channel
Headset detection
Headset left channel
Ground
5
4
3
GND
2
1
SW
Figure 27: Sketch of Audio Plug
HS_DET
SPK_L
32Ω
SPK_R
32Ω
MIC
Smart Module Series
45 / 66
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