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Control Unit
M95
Quectel M95 Manuals
Manuals and User Guides for Quectel M95. We have
2
Quectel M95 manuals available for free PDF download: Manual, Audio Design Manual
Quectel M95 Manual (43 pages)
UMTS/HSPA/GSM/GPRS Module
Brand:
Quectel
| Category:
Control Unit
| Size: 0.94 MB
Table of Contents
About the Document
3
Table of Contents
4
Contents
4
Introduction
7
General Descriptions
8
Product Description
8
Feature Overview
9
Pin Assignment
11
Pin Description
13
Hardware Reference Design
20
Power Supply
20
Power Supply Reference Design
20
Decrease Voltage Drop
21
Power-On Circuit
21
Power-Off Circuit
23
Turn off Module Using at Command
23
Turn off M95 R2.0 Using PWRKEY Pin
23
Emergency Shutdown
24
Network Status Indication
25
Operation Status Indication
26
U)SIM Interface
26
UART Interface
27
USB Interface
28
Audio Interfaces
29
RF Interface
29
Recommended Footprint and Stencil Design
31
Recommended Compatible Footprint
31
Recommended Stencil Design
33
Installation Sketch Map
36
Manufacturing and Packaging
37
Manufacturing and Soldering
37
Packaging
38
Appendix A References
42
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Quectel M95 Audio Design Manual (36 pages)
Brand:
Quectel
| Category:
Control Unit
| Size: 1.31 MB
Table of Contents
About the Document
3
Contents
4
Table of Contents
4
1 Introduction
8
Summary
8
Safety Information
8
2 Audio Circuit Design
10
Audio Circuit Reference
11
M1X
11
Microphone Reference Circuit
11
Receiver Reference Circuit
12
Headset Reference Circuit
14
M95
14
Microphone Reference Circuit
14
Receiver Reference Circuit
15
Headset Reference Circuit
15
SPK Reference Circuit
16
M80
17
Microphone Reference Circuit
17
Receiver Reference Circuit
17
Headset Reference Circuit
19
SPK Reference Circuit
19
Ringtone
20
Hands-Free Application at Channel AIN1/AOUT1
21
Suggestion for Audio Layout
22
TDD Noise Solution
22
Suggestion for Mechanical Design
23
Component of SPK
26
Component of Microphone
27
3 Description and Suggestion
28
AT Command
28
At+Qaudch
28
How to Modify Volume
29
At+Qmic
29
At+Clvl
30
At+Qsidet
31
Echo Algorithm
32
Description of Par0, Par2 and Par12
34
Recommended Application Field
35
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