EVB User Guide
M80_EVB_UGD_V1.0
- 14 -
Table 5: Pins of audio channel 1
Pin
Signal
I/O
Description
Note
1
MIC1N
I
Negative microphone input
2
SPK1N
O
Negative receiver output
3
SPK1P
O
Positive receiver output
4
MIC1P
I
Positive microphone input
3.3.
Loud speaker
1
2
Figure 6: Loud speaker interface
Table 6: Pins of loud speaker
Pin
Signal
I/O
Description
Note
1
LOUDSPKN
O
Negative loud speaker output
2
LOUDSPKP
O
Positive loud speaker output
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