Sim2 M80 Dokumentacja Pobierz pdf (Strona 24)

M80 Hardware Design

M80_HD_V1.0 - 24 -

only when normal

shutdown through

PWRKEY or AT

command can’t

perform well.

pin open.

Module indicator

PIN NAME

NO.

I/O

DESCRIPTION

CHARACTERISTICS

COMMENT

STATUS

Indicate module

operating status. High

level indicates module

is power-on and low

level indicates

power-down.

VOHmin=

0.85*VDD_EXT

VOLmax=

0.15*VDD_EXT

If unused, keep this

pin open.

Audio interface

PIN NAME

NO.

I/O

DESCRIPTION

CHARACTERISTICS

COMMENT

MIC1P

MIC1N

9，10

Channel one of

positive and negative

voice-band input

If unused, keep these

pins open.

MIC2P

MIC2N

7，8

Channel two of

positive and negative

voice-band input

SPK1P

SPK1N

12,11

Channel one of

positive and negative

voice-band output

If unused, keep these

pins open.

SPK2P

AGND

5,6

Channel two of

positive and negative

voice-band output

1, If unused, keep

these pins open.

2, Support both voice

and ring.

LOUDSPK

13，

Channel three of

positive and negative

voice-band output

1, If unused, keep

these pins open.

2, Embedded

amplifier of class AB

internally.

3, Support both voice

and ring.

Net status indicator

PIN NAME

NO.

I/O

DESCRIPTION

CHARACTERISTICS

COMMENT

Quectel

Confidential

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 87 88

Quectel Cellular Engine 1
Confidential 10

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Sim2 M80 Dokumentacja Strona 24

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