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2
Interfaces
The MG2618 module connects externally through a 49 PIN stamp-hole interface.
2.1
PIN Description
PIN
Type
Signal Definition
1
GND
GND
2
POWER
RSSI_LED
3
POWER
ON/OFF
4
GND
GND
5
AUDIO
HSED BIAS
6
AUDIO
MIC1_P
7
AUDIO
MIC1_N
8
AUDIO
MIC2_P
9
AUDIO
SPK2_P
10
AUDIO
SPK1_P
11
AUDIO
SPK1_N
12
GND
GND
13
POWER
/RESET
14
POWER
VREG_MSME1
15
GND
GND
16
ANT
RF_ANT
17
GND
GND
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Table 2–1 PIN Interface Definition
I/O
Description
--
--
Working status
O
indicator
Module
I
power-on/off
control
--
--
O
MIC bias
I
Differential audio
input channel 1,
anode
I
Differential audio
input channel 1,
cathode
I
Single-end audio
input channel 2
O
Single-end audio
output channel 2
O
Differential audio
output channel 1,
anode
O
Differential audio
output channel 1,
cathode
--
--
I
Resetting signal
O
2.8V output
--
--
GSM antenna
I/O
interface
--
--
Hardware Development Guide of Module Product
Remark
--
Active High
Valid at low level; pull-up
internally, more information please
refer to 4.1
--
Default is 1.9V
--
--
--
--
--
--
--
Active low
Recommend to use this pin for
pull-up when level matching
--
--
--
ZTE MG2618
6
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