Loud Speaker - Quectel M80 User Manual

EVB User Guide
Table 5: Pins of audio channel 1
Pin Signal
1 MIC1N
2 SPK1N
3 SPK1P
4 MIC1P

3.3. Loud speaker

1
2
Table 6: Pins of loud speaker
Pin Signal
1 LOUDSPKN
2 LOUDSPKP
M80_EVB_UGD_V1.0
I/O
I Negative microphone input
O Negative receiver output
O Positive receiver output
I Positive microphone input
Figure 6: Loud speaker interface
I/O
O Negative loud speaker output
O Positive loud speaker output
Description
Description
Note
Note
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