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Manuals and User Guides for Wavecom WISMO Quik Q2426. We have
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Wavecom WISMO Quik Q2426 manual available for free PDF download: Customer Design Manuallines
Wavecom WISMO Quik Q2426 Customer Design Manuallines (53 pages)
WISMO QUIK Q2400 Series
Brand:
Wavecom
| Category:
Software
| Size: 0.92 MB
Table of Contents
Document Information
3
Overview
4
Table of Contents
5
Contents
5
List of Figures
7
Wm_Prj_Q2400_Pts
8
Caution
8
Trademarks
8
Reference Documents
9
1 General Description
10
General Information
10
Module Features
10
Module External Connection
10
Additional Customizing Functions
11
Rohs Compliance
11
2 Baseband Design
12
Power Supply and Ground Design Rules
12
Electrical Constraints
12
Figure 1: Typical Power Supply Voltage in GSM Mode
12
Design Requirements
14
Figure 2: Maximal Voltage Ripple (Uripp) Vs Frequency in GSM & DCS
14
Figure 3: Burst Simulation Circuit
15
PCB Routing Constraints
16
Digital I/O and Peripheral Implementation
17
Electrical Information for Digital I/O
17
LCD Interface
17
SPI Auxiliary Bus
18
Keyboard Interface
18
Figure 4: Example of SPI Bus Typical Implementation
18
Main Serial Link (UART1)
19
Figure 5: Example of Keyboard Implementation
19
Figure 6: Example of RS232 Level Shifter Implementation
20
Figure 7: Example of Serial Link Interface Implementation
20
SIM Interface
21
Figure 8 Example of 3V SIM Socket Implementation
22
Figure 9: Example of 1.8 V / 3 V SIM Interface Implementation
23
Figure 10: Example of 3 V / 5 V SIM Interface Implementation
24
Analog I/O Implementation
25
Analog to Digital Converter (ADC) Inputs
25
Figure 11: Example of ADC Input Implementation
25
Audio Interface
26
Figure 12: Microphone Decoupling Capacitor
26
Figure 13: Example of Main Microphone MIC2 Implementation (Differential Connection)
27
Figure 14: MIC1 Inputs (Differential Connection)
28
Figure 15: MIC1 Inputs (Single-Ended Connection)
29
Figure 16: Speaker Outputs (Differential Mode)
30
Figure 17: Speaker Outputs (Single-Ended Connection)
30
Figure 18: Example of Buzzer Implementation
31
Battery Charging Interface
32
Figure 19: Example of Battery Implementation
32
On / ~Off
33
BOOT Signal (Optional)
34
Figure 20: BOOT Pin Connection
34
Reset Signal (~RST)
35
External Interrupt (~INTR)
35
Figure 21: ~RST Pin Connection
35
VCC Output
36
VCC_RTC (Real Time Clock Supply)
36
General
36
Typical Implementation
37
Figure 22: RTC Supplied by a Capacitor
37
Figure 23: RTC Supplied by a Super Capacitor
37
Figure 24: RTC Supplied by a Battery Cell with Regulator
38
Figure 25: RTC Supplied by a Non Rechargeable Battery
38
3 Radio Design
39
Antenna Characteristics
39
Antenna Implementation
39
Recommendations
39
RF Connection
40
Figure 26: Antenna Connection
40
Figure 27: Antenna Cable Preparation (Drawing Not to Scale)
41
4 Mechanical Specifications
42
Figure 28: Maximum Bulk Occupied on the Application Board
42
5 PCB Design
43
General Design Rules
43
Design Rules for Application Manufacturing
43
Recommendation for Lead Free Soldering
43
Power Supply
43
Pads Design
44
Figure 29: Pads Design
44
6 EMC Recommendations
45
7 Firmware Upgrade
46
Recommendations
46
Nominal Upgrade Procedure
46
Backup Procedure
47
8 Embedded Testability
48
Figure 30: Example of Serial Link Routing for Downloading
48
Figure 31: Download Cable Schematics (1/2)
49
Figure 32: Download Cable Schematics (2/2)
50
9 Part References and Suppliers
51
General Purpose Connector
51
SIM Card Reader
51
Microphone
51
Speaker
52
Antenna Cable
52
GSM Antenna
52
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