Neoway Technology 1500 WCDMA Module User Manual

Download:
Mirror Download [FCC.gov]
Document ID	2162561
Application ID	gaRbbY5ao9kfG/+DEQ83GA==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	Yes
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	71.56kB (894482 bits)
Date Submitted	2014-01-10 00:00:00
Date Available	2014-01-10 00:00:00
Creation Date	2014-01-10 08:09:54
Producing Software	Microsoft® Office Word 2007
Document Lastmod	2014-01-10 16:49:37
Document Title	Neoway WCDMA 3G模块硬件设计指南
Document Creator	Microsoft® Office Word 2007
Document Author:	Neoway

WM620 Hardware User Guide
V1.1
Neo_WM620
User Manual
Version V1.0
Let's enjoy the wireless life
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
WM620 Hardware User Guide
V1.1
Copyright
Copyright © 2008 Neoway Technology
All rights reserved.
is a trade mark of Shenzhen Neoway Technology Co., Ltd.
Notice
This document is intended for the customer engineers.
This document is subject to change without any notice.
No responsibility is assumed by Neoway Technology for the use of this document.
Neoway Technology always provides the best supports.
For pricing, ordering information and delivery please contact:
Sales@neoway.com.cn
For any technical support requests please contact:
Support@neoway.com.cn
For further information please visit:
http://www.neoway.com.cn
EU Regulatory Conformance Hereby, Galaxy Microsystems Ltd. declares that this device is in compliance with
the essential requirements and other relevant provisions of Directive 1999/5/EC.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 1
WM620 Hardware User Guide
V1.1
Revision History
Document Version
Content Revised
Date
V1.0
First issue
2013.09
V1.1
Add UART description
2013.10
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
WM620 Hardware User Guide
V1.1
Contents
1 Features and Description ................................................................................................................................. 2
1.1 HW block diagram and block description ................................................................................................... 2
1.2 Key Features ................................................................................................................................................ 2
1.3 Pin assignment and description ................................................................................................................... 0
2 Applicable interface.......................................................................................................................................... 3
2.1 Power supply Interface ................................................................................................................................ 3
2.1.1 Power Supply Requirements ................................................................................................................ 3
2.1.2 VRTC Interface .................................................................................................................................... 5
2.1.3 Power Supply Output............................................................................................................................ 6
2.1.4 Power on Sequences ............................................................................................................................. 6
2.2 Power ON/OFF and Reset ........................................................................................................................... 6
2.2.1 ON_OFF ............................................................................................................................................... 6
2.2.2 RESET_N ............................................................................................................................................. 7
2.3 Module Status Output .................................................................................................................................. 7
2.3.1 LED Indicator ....................................................................................................................................... 7
2.3.2 Ring ...................................................................................................................................................... 8
2.4 SIM Card ..................................................................................................................................................... 9
2.5 USB Interface ............................................................................................................................................ 10
2.6 UART .........................................................................................................................................................11
2.6.1 Basic Descriptions of UART ...............................................................................................................11
2.6.2 Level Translators for UART ................................................................................................................11
2.7 Audio interface .......................................................................................................................................... 13
3 Mechanics, Mounting and Packaging ........................................................................................................... 14
3.1 Dimension and PCB layout ....................................................................................................................... 14
3.2 Assembly ................................................................................................................................................... 14
3.3 Packaging and solder ................................................................................................................................. 15
4 Typical Application SCH ............................................................................................................................... 16
5 Abbreviations .................................................................................................................................................. 17
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 1
WM620 Hardware User Guide
V1.1
1 Features and Description
WM620 is a WCDMA module supporting multiple modes of HSDPA/UMTS/EDGE/GPRS/GSM. The HSDPA
supports 3.6Mbps downlink data rate and 384Kbps uplink data rate. WM620 provides high-quality data and
voice communication, SMS and other functions, widely applied to various industrial and commercial areas.
WM620 is SMT module in LCC compact package. It can be easily adapted to standard Mini PCI-E Interface.
1.1
HW block diagram and block description
32.768KHz
19.2MHz
Antenna
Switch
RAM&FLASH
ci
ta
oi
in
re
af
ec
Baseband
Controller
RF
Section
SIM
PCM
UART
Audio
Section
1.2
Power
Manager
USB
Key Features
Specification
Frequency Band
Sensitivity
Description
WM620:
UMTS2100/1900/900/850MHz GSM850/900/1800/1900 MHz
-106dBm
GSM/GPRS 850M/900MHz：32±1dBm (Power Class 4)
Max. transmitter power
GSM/GPRS 1800MHz/1900MHz：30±0.5dBm (Power Class 1)
WCDMA: 23±1dBm (Power Class 3)
HSDPA:22±1dBm (Power Class 3)
Transient Current
Max 2A
Standby Current (Idle)
<5.0mA
Operating Temperature Range
Storage Temperature Range
Normal working temperature: –30°C to + 80°C
–40°C to + 85°C
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 2
WM620 Hardware User Guide
Dimension (mm)
Power supply
AT Command
V1.1
30*30*2.7
DC power input range 3.3 Volts to 4.2 Volts（recommended 3.9V ）
GSM07.07
Neoway extended AT command
Driver
Supporting Windows XP、Linux(2.6.1)、Android
Voice
FR, EFR, HR, AMR Voice Coding , DTMF
SMS
TEXT/PDU
Point of Point/ Cell Broadcast
UMTS/WCDMA/GSM/GPRS/EDGE
Specification
Release
‘99
(3GPP R99)
UMTS/WCDMA Specification Release 5 (3GPP R5)
Technical Standard
HSDPA and equalizer; 3.6Mbps
GSM/GPRS/EDGE Specification Release 4 (3GPP R4)
GPRS/EDGE Multislot Class 12, Release 4
DTM Multislot Class 11
GSM CS: UL 14.4kbps / DL 14.4kbps
GPRS:UL 85.6kbps / DL 85.6kbps
Data Rate
EDGE: DL 236.8kbps / UL: 236.8kbps
WCDMA CS: UL 64kbps / DL 64kbps
WCDMA PS: UL 384kbps / DL 384kbps
HSDPA: DL 3.6Mbps / UL 384kbps
Circuit Switched Data
Support CSD
Support USSD
Call Transfer (CFB, CFNA, CFU)
Supplementary Service
Call Waiting
Three-Way Calling
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 3
WM620 Hardware User Guide
1.3
V1.1
Pin assignment and description
Pin
NO.
Pin Name
I/O
GND
PWR
Pad
group
Description
COMMENT
1、12、
17、21、
GND
24、34、
Ground
43、45、
50、61
NC
NC
NC
NC
Reserved
NC
Reserved
NC
Reserved
NC
Reserved
NC
Reserved
NC
Reserved
NC
Reserved
NC
Reserved
10
NC
Reserved
11
NC
Reserved
13
V_SIM
PWR
1.8V/2.8V
USIM VCC
14
SIM_RST
1.8V/2.8V
USIM reset
SIM card
interface
USB
transceiver
15
SIM_DAT
Needs an external 10K
I/O
1.8V/2.8V
USIM data
pull-up
resistance
V_SIM
16
SIM _CLK
I/O
18
USB_D+
I/O
19
USB_D-
I/O
1.8V/2.8V
USIM clock
High-speed
USB
differential data (+)
High-speed
USB
differential data (-)
Input range from 3.3 to
interface
20
V_USB
PWR
USB Power input
5.25 V.
Needs a 4.7uF decoupling
MLCC Cap to GND
Power
Reset
to
22
23
25
VBAT
PWR
RESET_N
DI
Main battery power
input
VDD_1.8V
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Reset input
WM620 Hardware User Guide
V1.1
26
VDD_1.8V
PWR
27
VDD_2.6V
PWR
28
EAR_1P
AO
29
EAR_1N
AO
30
MIC_1N
AI
31
MIC_1P
AI
32
NC
33
NC
35
NC
36
NC
37
NC
38
NC
39
NC
40
NC
41
NC
42
NC
44
ANT_M
Linear
1.8V output
Power
Audio
interface
NC
ANT
regulator
Linear
regulator
2.6V output
Earphone amplifier
output（+）
Earphone amplifier
output（-）
Microphone
difference input1 (-)
Microphone
difference input (+)
Reserved
RF main antenna
AI/A
interface
Pulled up internally
46
ON_OFF
Control
power-on
and power-off
with
250k
to
DVDD;
approximately+2.8 V
Indicator
Light
ADC
47
VRTC
Coin cell backup
PWR
48
SIG_LED
49
ADC
AI
51
RING
voltage input
VDD_2.6V
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
1.5~3.25VDC,Typical
3.0VDC
Signal show
LIGHT
12bit ADC input
VDD_2.6V
Range
Input Range：0~2.2V
Call and SMS
Page 1
WM620 Hardware User Guide
V1.1
indicating Output
NC
High-speed UART
clear to send signal
High-speed UART
ready for receive
signal
High-speed UART (allow input 3V)
receive data input
High-speed UART
transmit
data
output
Reserved
52
CTS
VDD_2.6V
53
RTS
VDD_2.6V
54
RXD
VDD_2.6V
55
TXD
VDD_2.6V
56
NC
57
NC
Reserved
58
NC
Reserved
59
NC
Reserved
60
SLEEP_IN
DI
62
NC
NC
VDD_1.8V
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Sleep control pin
input
Reserved
Page 2
WM620 Hardware User Guide
V1.1
2 Applicable interface
2.1
Power supply Interface
The Power supply part of the WM620 module contains:
PIN
Signal name
I/O
Function description
Note
22、23
VBAT
PWR
For power voltage input
47
VRTC
PWR
Coin cell backup voltage input
26
VDD_1.8V
PWR
Linear regulator 1.8V output
27
VDD_2.6V
PWR
Linear regulator 2.6V output
Characteristics of the VBAT are shown in the table 2-1.
Table 2-1, Input voltage characteristics
Status
Min. voltage
Typical voltage
Max. voltage
VBAT
+3.3 VDC
+3.8 VDC
+4.2VDC
NOTE：Make sure that the VBAT can never exceed 4.5VDC. Voltage higher than 4.5VDC may damage the
WM620 module.
2.1.1 Power Supply Requirements
VBAT is the main power input ranged from 3.3V to 4.2V DC, 3.8V DC is recommended. The average current
is less than 500mA@3.8VDC. But in the module’s transmitting mode, the largest current can burst up to 1.8A
providing the RF power amplifier. The burst current may cause deep voltage drop, and trigger the module into
a power reset. Thus a high value and low ESR capacitor must be installed on the VBAT, to avoid or reduce the
voltage drop caused by the RF power amplifier.
Figure 2-1a, current and voltage curve of VBAT
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 3
WM620 Hardware User Guide
V1.1
Figure 2-1b, Schematic circuit for current test
The current test results related to the ESR of the capacitors and the internal resistance of the power source. A
470uF tantalum electrolytic capacitor or a 1000uF low ESR aluminum electrolytic capacitor is recommended
for C1. Lithium battery is a very low resistance power source. If the VBAT is supplied by a lithium battery,
220uF or 100uF tantalum capacitor can fit the current require for VBAT. These 10uF, 0.1uF, 100pF and 33pF
MLCC capacitors should be placed close to the VBAT pin.
ESD, Lightning Surge or other interferences can rarely cause the WM620 to stop running. Reset the power
supply can recover the module. So the power control is very important in the unattended applications. VCC_EN
in figure 2-2 is the switch to control the power.
The recommended design of power supply is shown in figure 2-2a. In this circuit, with the EN pin of
LDO/DC-DC, power supply can be controlled by the external MCU or other master device. If the LDO or
DC-DC has no EN pin, a low on-resistance P-MOSFET can work as a power switch. The P-MOSFET power
switch shown in Figure 2-2b can replace the function of EN pin.
Figure 2-2a
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 4
WM620 Hardware User Guide
V1.1
Figure 2-2b
2.1.2 VRTC Interface
VRTC Pin is used as an analog input from the 3 V coin cell for SMPL(Sudden Momentary Power Loss),
RTC(Real-time Clock), and crystal oscillator to keep alive power when the module is powered off. A capacitor
(rather than a coin cell) can be used if only SMPL is supported (not RTC or XTAL).
Figure 2-3
VRTC pin is also used as an analog output to charge a coin cell or a capacitor. When supply current is sourced
from the main power supply through VBAT pin. The on-chip coin cell charger is implemented using a voltage
regulator and series resistor.
If the monitored VBAT drops out-of-range (< 2.55V nominal), the SMPL feature initiates a power-on sequence
without software intervention, and then VBAT returns in-range within a programmable interval of between 0.5
and 2.0 seconds. SMPL achieves immediately and automatically recovery from momentary power loss. A valid
voltage on VRTC is required to run the SMPL timer.
If a capacitor is used instead of a coin cell, it must be connected between VRTC PIN and the ground, Figure
2-3 shows the reference RTC circuit. The capacitor must be charged to operate properly as the SMPL power
source. The capacitor value depends on the SMPL timer setting. Table 2-2 shows the capacitor value of VS
SMPL time.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 5
WM620 Hardware User Guide
Table 2-2
V1.1
Keep-alive capacitor values vs. SMPL timer settings
SMPL timer setting
Capacitor value
Capacitor package (X7R)
0.5 sec
1.5 µF
0805
1.0 sec
3.3 µF
0805
1.5 sec
4.7 µF
0805
2.0 sec
6.8 µF
1206
2.1.3 Power Supply Output
The VDD_1.8V and VDD_2.6V pins are two linear regulator outputs. These two pins can supply the same
output current of 20mA (typical value). These two power supplies can be used for logic level conversion
circuits between WM620 and external devices, and not recommended as a general-purpose power source for
other application circuits.
VDD_2.6V circuit keeps operating while the WM620 module in sleep mode.
2.1.4 Power on Sequences
Figure 2-4 shows the power on sequencing of WM620.
Figure 2-4
2.2
Power ON/OFF and Reset
2.2.1 ON_OFF
ON_OFF is an input pin with an internal pull-up resistance. Launch a valid low level pulse to ON_OFF can
control the WM620’s system into Start-up or shut-down mode. The pulse width requirement and power on
sequence are shown in figure 2-4.
When the WM620 power on, the VDD_2.6V pin would rise up and keep on 2.6V DC, and then the module's
serial port will automatically issue a keyword string, means that the module system is running and AT
commands is ready.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 6
WM620 Hardware User Guide
V1.1
While the WM620 is in running mode, low level pulse can put the module system into shutdown procedure.
And then the module would power off within after 5S.
Instead of ON_OFF pin, An AT command can also shutdown the module. For more specific, please refer to the
WM620’s AT command manual.
Keeps the ON_OFF low or connecting to GND, WM620 can automatically power up when VBAT is supplied.
High level pulse control circuit of ON_OFF is shown in Figure 2-5：
Figure 2-5
2.2.2 RESET_N
RESET_N is an active low signal with an internal pull-up resistance and acts as hardware reset input.
Low level pulse longer than 20mS can reset the WM620. After reset the module, power on operations, such as
launch a low level pulse to the ON_OFF pin, must be done again. The recommended reset pulse is 50ms, but
can not exceed 2S. Otherwise, the WM620 module will power off.
If keeps the ON_OFF low or connecting to GND, the WM620 can automatically power up after reset the
module.
2.3
Module Status Output
2.3.1 LED Indicator
PIN
Signal Name
I/O
48
SIG_LED
Function Description
running status indication
DC Characteristics (V)
Min
typical
max
-0.3
2.6
2.9
SIG_LED is the WM620’s working status output. The SIG_LED pin can supply 8mA drive current. WM620
provide several flash mode to indicate different running status. For more specific, please refer to the WM620’s
AT command manual.
SIG_LED can drive the LED directly, shown in Figure 2-6a. Figure 2-6b is the reference circuit to increase the
brightness of LED. The LED’s brightness depends on the value of R1 and VCC.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 7
WM620 Hardware User Guide
V1.1
Figure 2-6a
Figure 2-6b
2.3.2 Ring
PIN
Signal Name
I/O
51
RING
Function Description
Ring
output
DC Characteristics (V)
Min
typical
max
-0.3
2.6
2.9
When a phone call is coming, the RING pin will issue several low level pulses. Shows in Figure 2-7.
Figure 2-7
When WM620 receives a SMS, the RING pin will issue one low level pulse, Shown in Figure 2-8. The pulse
width can be configured through an AT command. For more specific, please refer to the WM620’s AT
command manual.
Figure 2-8
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 8
WM620 Hardware User Guide
2.4
V1.1
SIM Card
PIN
Signal name
I/O
Function description
Note
13
V_SIM
PWR
SIM ard power output
1.8/3.0V
14
SIM_CLK
DO
SIM card clock output
1.8/3.0V
15
SIM_RST
DO
SIM card reset output
1.8/3.0V
16
SIM_DATA
I/O
SIM card data input/output
1.8/3.0V
WM620 module supports 3V & 1.8V SIM cards. The SIM_DATA pin needs an externally 10K pull-up
resistor connected to V_SIM.The SIM_CLK is the clock signal, normally 3.25MHz. Bifurcation is not
recommended at the PCB trace of SIM_CLK.
Include SIM_DATA and SIM_CLK, the traces should be as short as possible and surrounded by the ground
copper to reduce the RF interference. The total distributed capacitance, include the junction capacitance of the
ESD diode or other device, can’t be higher than 120pF.
Figure 2-9a, SIM card and ESD devices
Figure 2-9b, the recommended ESD diode array
Figure 2-9c, a sample of SIM card socket
PIN1, VCC
PIN2, RST
PIN3, CLK
PIN4, GND
PIN5, VPP
PIN6, DATA
The SIM card application circuit is shown in Figure 2-9. In automotive electronics or other applications with
strong ESD, ESD diodes or ESD varistors are strongly recommended, such as T1 to T4. T1 to T4 should be
place closed to SIM card. In some clear applications, SIM card is installed in closed box without human touch,
22~33pF MLCC capacitors can replace the ESD diodes for cost down.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 9
WM620 Hardware User Guide
V1.1
Note：SIM card is very sensitive to RF interference.
Serious RF interference to SIM card will cause the WM620 to miss the detection to SIM card and out of service.
So, it is very importance in the PCB design listed as the following message.

The antenna should be installed a long distance away from the SIM card and SIM card traces.

The SIM card traces should be routed as short as possible and shielded with GND copper.

The ESD diodes or capacitors should be placed closed to SIM card.
2.5
USB Interface
Table 2-3, USB Interface
Pin
Pin Name
I/O
Function description
18
USB D+
I/O
High-speed USB differential data, (+)
19
USB D-
I/O
High-speed USB differential data, (-)
20
V_USB
PWR
USB Power
Note
Input voltage 3.3 to 5.5V.
The WM620 module is compliant with USB2.0 full speed device. The USB2.0 specification requires the hosts
such as PCs to support three USB speeds, namely low-speed (1.5Mbps), full-speed (12Mbps) and high-speed
(480Mbps).
The V_USB pin is an analog input. A 4.7µF decoupling MLCC capacitor to GND is strongly recommended,
and should be placed as closely as possible to V_USB Pin. It will increase the USB stability. ESD diodes
should be installed to these three signals. Shown in Figure 2-10.
Figure 2-10
Note: The layout design of this USB should comply with the USB 2.0.

The traces of USB_D+ and USB_D- must be routed as a group of differential pair with 90Ω differential
impedance.

The USB differential pair should be routed side-by-side and on the same layer.

USB_D+ and D- is a pair of high speed signals, so the trace lengths should match as well as possible.

Please to connect USB or set aside the relevant test points, to facilitate subsequent upgrade or debugging.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 10
WM620 Hardware User Guide
2.6
V1.1
UART
Pin
Pin Name
I/O
Function description
52
CTS
53
RTS
54
RXD
High-speed UART clear to send
signal
High-speed UART ready for receive
signal
55
TXD
High-speed UART receive data input
High-speed UART transmit data
output
Note
(allow input 3V)
2.6.1 Basic Descriptions of UART
UART1 is for AT commands, data sending/receiving, firmware updating, etc.
As a DCE device, the module is connected to DTE as shown in Figure 2-11.
Supported baud rates are 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400bps, and the default is
115200.
Figure 2-11, Connection between DCE (module) and DTE
The UART of WM620 works at 2.6V CMOS logic level. The voltages for input high level should not exceed
3.0V.
2.6.2 Level Translators for UART
If the UART is interfacing with a MCU that has 3.3V logic levels, resistors should be connected in series with
the signals, shown in figure 2-12.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 11
WM620 Hardware User Guide
V1.1
Figure 2-12, Interfacing with 3.3V logic levels of MCU
If the UART is interfacing with a MCU that has 5V logic levels, general level translators are required, for both
inputs and outputs. As shown in Figure 2-13.
Figure 2-13, Interfacing with 5V logic levels of MCU
Reference components:
R2: 2K-10K. The higher rate the UART works at, the smaller value used
R3: 4.7K-10K. The higher rate the UART works at, the smaller value used
Q1: MMBT3904 or MMBT2222. High-speed transistors preferred.
Used for 5V logic -> 2.6V logic:
While this circuit used between MCU TXD and module RXD, the INPUT signal is connected to MCU TXD,
and OUTPUT connected to module RXD. VCC_IN powered from 5V and VCC_OUT powered from 2.6V
(module’s VDD_2.6V).
Used for 2.6V logic -> 5V logic:
It can be used between module TXD and MCU RXD as well, with INPUT connected to module TXD, and
OUTPUT connected to MCU RXD. VCC_IN powered from 2.6V (module’s VDD_2.6V) and VCC_OUT
powered from 5V. This applies to RING signal as well.
Note:
Avoid sparks and glitches on UART signals while the module is in a turning on procedure.
Avoid sending any data to UART during the beginning of 2 seconds after the module being turned on.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 12
WM620 Hardware User Guide
2.7
V1.1
Audio interface
Table 2-4, Audio interface
PIN
Signal Name
I/O
Function Description
28
EAR_1P
AO
Earphone amplifier output（+）
29
EAR_1N
AO
Earphone amplifier output（-）
30
MIC_1N
AI
Microphone #1 input (-)
31
MIC_1P
AI
Microphone #1 input (+)
Note
32Ω Earpiece;
typical:35mW
The WM620’s typical audio interfaces are shown in Figure 2-14. The earpiece output pins are connected
directly to the earpiece, each with its own bypass capacitor. The capacitor value is selected to optimize
performance in each design, but a value of 100pF or less is expected (100pF is used in the example). The
output power for the differential ear output is typically 35mW for a full-scale +3dBm sine wave into a 32Ω
speaker.
Figure 2-14
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 13
WM620 Hardware User Guide
V1.1
3 Mechanics, Mounting and Packaging
3.1
Dimension and PCB layout
Figure 3-1, WM620 PCB foot print
3.2
Assembly
The WM620 introduces 62 Pin LCC castellation technology, less pin counts and wide pitch, these features are very suitable
for low-cost and simple designs with 2 layer PCB. Benefit from it’s ultra-compact size and high reliability,
WM620 can be easily designed in. Moreover, WM620supports manual soldering, can adapt to mass production
and also low quantity perfectly, and has low technical requirement for manufacturing equipment.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 14
WM620 Hardware User Guide
3.3
V1.1
Packaging and solder
WM620 modules are packaged in sealed bags on delivery to guarantee a long shelf life. Package the modules
again in case of opening for any reasons.
If exposed in air for more than 48 hours at conditions not worse than 30°C/60% RH, a baking procedure should
be done before SMT. Or, if the indication card shows humidity greater than 20%, the baking procedure is also
required. The baking should last for at least 24 hours at 90℃.
In order to prevent the product of from being affected with damp, caused by using the SMT way to perform the
furnace welding, in the process of production and use of the costumer, we employ the way of damp-proof
packing, such as Aluminum Foil Bag, desiccating agent, Humidity Indicator Cards, Suck plastic trays, and
vacuolization. As a result the product is kept dry and its life span will be long.
For more storage and SMT information, please refer to 《Neoway modules’ recommendation for SMT and
reflow solder》.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 15
WM620 Hardware User Guide
V1.1
4 Typical Application SCH
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 16
WM620 Hardware User Guide
V1.1
5 Abbreviations
ADC
Analog-Digital Converter
AFC
Automatic Frequency Control
AGC
Automatic Gain Control
AMR
Acknowledged multirate (speech coder)
CSD
Circuit Switched Data
CPU
Central Processing Unit
DAI
Digital Audio interface
DAC
Digital-to-Analog Converter
DCE
Data Communication Equipment
DSP
Digital Signal Processor
DTE
Data Terminal Equipment
DTMF
Dual Tone Multi-Frequency
DTR
Data Terminal Ready
EFR
Enhanced Full Rate
EGSM
Enhanced GSM
EMC
Electromagnetic Compatibility
EMI
Electro Magnetic Interference
ESD
Electronic Static Discharge
ETS
European Telecommunication Standard
FDMA
Frequency Division Multiple Access
FR
Full Rate
GPRS
General Packet Radio Service
GSM
Global Standard for Mobile Communications
HR
Half Rate
IC
Integrated Circuit
IMEI
International Mobile Equipment Identity
LCD
Liquid Crystal Display
LED
Light Emitting Diode
MS
Mobile Station
PCB
Printed Circuit Board
PCS
Personal Communication System
RAM
Random Access Memory
RF
Radio Frequency
ROM
Read-only Memory
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 17
WM620 Hardware User Guide
V1.1
RMS
Root Mean Square
RTC
Real Time Clock
SIM
Subscriber Identification Module
SMS
Short Message Service
SRAM
Static Random Access Memory
TA
Terminal adapter
TDMA
Time Division Multiple Access
UART
Universal asynchronous receiver-transmitter
VSWR
Voltage Standing Wave Ratio
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 18
WM620 Hardware User Guide
V1.1
Warning Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation.
This equipment generates, uses and can radiate radio
frequency energy and if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try correct the
interference by one or more of the following measures:
- Reorient the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into and outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
You are cautioned that changes or modifications not expressly approved by the party responsible for
compliance could void your authority to operate the equipment.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1)
this device may not cause harmful interference, and 2) this device must accept any interference received,
including interference that may cause undesired operation.
Important announcement
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
IMPORTANT NOTE:
This module is intended for OEM integrator. The OEM integrator is still responsible for the FCC compliance
requirement of the end product, which integrates this module.
20cm minimum distance has to be able to be maintained between the antenna and the users for the host this
module is integrated into. Under such configuration, the FCC radiation exposure limits set forth for an
population/uncontrolled environment can be satisfied.
Any changes or modifications not expressly approved by the manufacturer could void the user's authority to
operate this equipment.
USERS MANUAL OF THE END PRODUCT:
In the users manual of the end product, the end user has to be informed to keep at least 20cm
separation with the antenna while this end product is installed and operated. The end user has to
be informed that the FCC radio-frequency exposure guidelines for an uncontrolled environment
can be satisfied. The end user has to also be informed that any changes or modifications not
expressly approved by the manufacturer could void the user's authority to operate this equipment.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 19
WM620 Hardware User Guide
V1.1
LABEL OF THE END PRODUCT:
The final end product must be labeled in a visible area with the following" Contains TX FCC ID:
PJ7-1500 ". The FCC part 15.19 statement below has to also be available on the label: This
device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference and (2) this device must accept any
interference received, including interference that may cause undesired operation.
To comply with FCC regulations limiting both maximum RF output power and human exposure to RF radiation,
the maximum antenna gain including cable loss in a mobile-only exposure condition must not exceed 1dBi in
the cellular band and 1dBi in the PCS or WCDMA band.
A user manual with the end product must clearly indicate the operating requirements and conditions that must
be observed to ensure compliance with current FCC RF exposure guidelines.
The end product with an embedded WM620 Module may also need to pass the FCC Part 15 unintentional
emission testing requirements and be properly authorized per FCC Part 15.
Note: If this module is intended for use in a portable device, you are responsible for separate approval to
satisfy the SAR requirements of FCC Part 2.1093.
All rights reserved by Shenzhen Neoway Technology Co., Ltd.
Page 20

---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.5
Linearized                      : No
Language                        : zh-CN
Tagged PDF                      : Yes
XMP Toolkit                     : Adobe XMP Core 5.2-c001 63.139439, 2010/09/27-13:37:26
Format                          : application/pdf
Creator                         : Neoway
Title                           : Neoway WCDMA 3G模块硬件设计指南
Create Date                     : 2014:01:10 08:09:54
Creator Tool                    : Microsoft® Office Word 2007
Modify Date                     : 2014:01:10 16:49:37+08:00
Metadata Date                   : 2014:01:10 16:49:37+08:00
Producer                        : Microsoft® Office Word 2007
Document ID                     : uuid:ba309af9-0130-460e-a916-d76bc541854b
Instance ID                     : uuid:347ce369-168b-4889-b610-1dc9f8e5a6e2
Page Count                      : 27
Author                          : Neoway

EXIF Metadata provided by EXIF.tools