Quectel LTE Standard Module Series Reference Design

PROJECT
TITLE
Lorry XU
Woody WU
CHECKED BY
DRAWN BY
OF
A
6
5
4
32
1
SHEET
A
B
C
D
123456
D
C
B
Quectel Wireless Solutions
SIZE
VER
149
1.0
DATE
2019/12/5
EG21-G
A2
Reference Design
Handset Application
Earphone Application
Close to earphone interface
Notes:
Audio Interfaces
CTIA
OMTP
R0702/R0705
R0701/R0704
M
M
NM
NM
1. The analog output only drives earphone and headset. For larger power loads such as speakers, an audio power amplifier should be added in the design.
2. In handset application, both the MIC and SPK signal traces need to be routed as differential pairs.
3. In earphone application, the MIC signal traces need to be routed as differential pairs.
4. All MIC and SPK signal traces should be routed with total grounding and far away from noise such as clock and DC-DC signals, etc.
5. ALC5616 and TLV320AIC3104 cannot be used simultaneously in audio codec design.
4
1
3
2
J0701
D0701
ESD9X5.0ST5G
D0702
C0702
33pF
C0704
33pF
C0705
10pF
C0703
10pF
C0706
33pF
C0701
10pF
C0709
10pF
C0710
33pF
C0711
10pF
C0712
33pF
C0708
33pF
C0707
10pF
C0713
10pF
C0714
33pF
C0715
4.7μF
D0703
PESD5V0S1BL
D0704
R0703 0R
R-0805
1
2
3
4
5
J0702
C0716
10pF
C0717
33pF
D0705
ESD9X5.0ST5G
R0702
NM_0R
R0701
0R
R0704
0R
R0705
NM_0R
D0706
PESD5V0S1BL
C0718
10pF
C0719
33pF
D0707
PESD5V0S1BL
C0720
10pF
C0721
33pF
F0701
0R
F0702
0R
F0704
0R
F0703
0R
[7,8]
SPK_P
[7,8,9]
MIC_P
[7,8,9]
MIC_N
[7,8,9]
MIC_N
[7,8]
SPK_N
[7,8]
SPK_R
[7,8]
SPK_L
[7,8,9]
MIC_P
[7,8,9]
MIC_P

Quectel LTE Standard Module Series Specifications

General

Brand	Quectel
Model	LTE Standard Module Series
Category	Wireless modules
Language	English