Home
Neoway
Control Unit
WM620
Page 36
Neoway WM620 - Page 36
46 pages
Manual
Save Page as PDF
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
WM620 Har
dware User Guide
Copyr
ight © Neoway
T
echnology
Co., Ltd
29
On the PCB, k
eep the RF si
g
nals and RF
components away
fro
m hi
gh
-speed circui
ts, power supplies,
transform
ers, great inductors, t
he clock circuit of single-
chip host, etc.
35
37
Table of Contents
Main Page
Default Chapter
4
Table of Contents
4
1 Introduction to WM620
8
Overview
8
Block Diagram
8
Specifications
9
Table 1-1 WM620 Specifications
9
2 Pin Description and PCB Foot Print
11
Specifications
11
Figure 2-1 Bottom View of the WM620 Module
11
Pin Definition
12
Table 2-1 WM620 Pin Definition
12
PCB Foot Print
14
Figure 2-2 PCB Foot Print Recommended for WM620 (Unit: MM)
14
3 Interface Design
15
Power Supply and Switch Interfaces
15
Vbat
15
Table 3-1 Power Supply and Switch Interface
15
Figure 3-1 Current Peaks and Voltage Drops
16
Figure 3-2 Power Supply Design
16
Figure 3-3 Reference Design of Power Supply Controlled by MIC29302
17
Figure 3-4 Reference Design of Power Supply Controlled by P-MOSFET
17
Vrtc
18
Figure 3-5 RTC Reference Design
18
VDD
19
ON_OFF Pin and Power-On Procedure
19
Table 3-2 Capacity Matching Power Failure Duration
19
Figure 3-6 Reference Circuit of ON_OFF Controlled by High Level
20
Figure 3-7 Power-On Procedure
20
Reset
21
Figure 3-8 Reset Circuit
21
Running Status Indication
22
LED Indicator
22
Table 3-3 LED Indicator
22
Table 3-4 Network Status Indication (A)
22
Table 3-5 Network Status Indication (B)
22
RING Pin
23
Figure 3-9 Reference Circuit of LED Indicator
23
Figure 3-10 Circuit for Brighter LED
23
Figure 3-11 RING Indicator for Incoming Call
23
Figure 3-12 RING Indicator for SMS
23
USIM Card Interface
24
Figure 3-13 Reference Design of USIM Card Interface
24
Table 3-6 SIM Card Interface
24
Figure 3-14 Recommended ESD Diode Array
25
Figure 3-15 Reference of SIM Card Socket
25
USB Interfaces
26
Figure 3-16 Reference USB Circuit
26
Table 3-7 USB Interface
26
Uart
27
Basic Descriptions of UART
27
Figure 3-17 Signal Connection between DCE and DTE
27
Table 3-8 UART
27
Level Shifting for UART
28
Figure 3-18 Recommended Circuit between 3.3V MCU and UART
28
Sleep Mode
29
Figure 3-19 Recommended Circuit between 5V MCU and UART
29
Figure 3-20 Sleep Mode Controlled by UART
30
UART Control
30
USB Control
30
Figure 3-21 Sleep Mode Controlled by USB (A)
31
Figure 3-22 Sleep Mode Controlled by USB (B)
31
Audio Interface
32
Figure 3-23 Reference Design of MIC Differential Connections
32
Table 3-9 Audio Interface
32
Figure 3-24 Reference Design of Single-End Input MIC Interface
33
Figure 3-25 Reference Design for Speaker Differential Output
33
Figure 3-26 Reference Design for Speaker Single-Ended Output
33
Table 3-10 MIC Voltage and Current
33
Adc
34
Table 3-11 EAR Parameter
34
Table 3-12 SPK Parameter
34
RF Interface
35
Figure 3-27 Reference Design for Antenna Interface
35
Figure 3-28 RF Layout Reference
35
4 RF Features
37
Work Band
37
Transmitting Power and Receiving Sensitivity
37
Transmitting Power
37
Receiving Sensitivity
37
Table 4-1 Work Band
37
Table 4-2 Transmitting Power (Unit: Dbm)
37
Table 4-3 Receiving Sensitivity (Unit: Dbm)
38
5 Electric Features and Reliability
39
Electric Feature
39
Temperature
39
Current
39
Table 5-1 Electric Feature of the Module
39
Table 5-2 Temperature Feature (Unit: º C)
39
Table 5-3 Operating Current (Unit: Ma)
39
ESD Protection
40
Table 5-4 Current in Sleep Mode
40
Table 5-5 ESD Feature of the Module
40
6 Typical Circuits
41
7 Mounting the Module Onto the Application Board
43
8 Package
44
9 Abbreviations
45
Related product manuals
Neoway M590
36 pages
Neoway N11 V2
134 pages
Neoway M590E
65 pages
Neoway N21 Series
47 pages
Neoway N20
17 pages
To Next Page
Loading...
