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M80 EVB User Guide

M80_EVB_User_Guide_V1.2 - 16 -

Module

AIN1/AOUT1

RJ11

AIN2/AOUT2

Figure 9: Block diagram of AIN1/AOUT1&AIN2/AOUT2

The RJ11 interface is shown as below. The pins of RJ11 are shown in the following table.

Figure 10: Pins of AIN1/AOUT1&AIN2/AOUT2

Table 3: Pins of AIN2/AOUT2

Signal

I/O

Description

Note

2_1

MIC2N

Negative microphone input

2_2

AGND

AGND of audio circuits

1_4

1_3

1_2

1_1

2_4

2_3

2_2

2_1

Quectel

Confidential

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Sim2 M80 Guía de usuario Pagina 17