Transcript
Neo_WL680 Hardware User Guide Version 1.2
Neo_WL680 Hardware User Guide
Copyright © Neoway Technology Co., Ltd 2014. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Shenzhen Neoway Technology Co., Ltd.
is the trademark of Neoway Technology Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice This document provides guide for users to use the WL680. This document is intended for system engineers (SEs), development engineers, and test engineers. The information in this document is subject to change without notice due to product version update or other reasons. Every effort has been made in preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.
Neoway provides customers complete technical support. If you have any question, please contact your account manager or email to the following email addresses:
[email protected] [email protected] Website: http://www.neoway.com.cn
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Neo_WL680 Hardware User Guide
Revision Record Issue
Changes
Date
V1.0
Initial draft
2013-08
V1.1
Modified the temperature curve
2013-10
V1.2
Modified pin definition in 4.2 and deleted the description about the audio pin.
Modified description about RF interface and PCB layout
Delete the description about the charging function
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2014-02
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Neo_WL680 Hardware User Guide
Contents 1 Overview..............................................................................................................................1 2 Block Diagram.................................................................................................................... 1 3 Specifications......................................................................................................................1 4 Encapsulation and Pins.....................................................................................................2 4.1 Model.............................................................................................................................................2 4.2 Specifications and Encapsulation..................................................................................................2 4.3 Pin Definition................................................................................................................................ 3 4.4 PCB Foot Print...............................................................................................................................4
5 Interface Design................................................................................................................. 2 5.1 Power Supply and Switch Interface.............................................................................................. 2 5.1.1 Design Requirements........................................................................................................... 3 5.1.2 Power on Procedure..............................................................................................................5 5.1.3 ON/OFF Procedure...............................................................................................................5 5.2 DTR and RING..............................................................................................................................7 5.2.1 DTR Pin................................................................................................................................7 5.2.2 Running LED Indicator........................................................................................................ 7 5.3 RESET........................................................................................................................................... 8 5.4 VMC.............................................................................................................................................. 8 5.5 UART.............................................................................................................................................8 5.6 RF Interface and PCB Layout..................................................................................................... 10 5.6.2 Antenna Design...................................................................................................................11 5.6.3 RF Indicators...................................................................................................................... 12
6 Mounting the Module onto the Application Board.................................................. 14 7 Package...............................................................................................................................15 8 Abbreviations................................................................................................................... 15
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Neo_WL680 Hardware User Guide
Table of Figures Figure 4-1 Appearance of the M680 module.............................................................................................3 Figure 4-2 PCB foot print recommended for M680..................................................................................2 Figure 5-1 Reference design of power supply control.............................................................................. 3 Figure 5-2 Reference design of power supply controlled by p-MOSFET................................................ 4 Figure 5-3 Reference design of power supply...........................................................................................4 Figure 5-4 Turning on/off the module using ON/OFF..............................................................................5 Figure 5-5 Reference circuit for ON/OFF control.....................................................................................6 Figure 5-6 LED indicator.......................................................................................................................... 8 Figure 5-7 Signal connection between DCE and DTE..............................................................................9 Figure 5-8 Recommended circuit for the communication between 3.3 V MCU and UART.................... 9 Figure 5-9 Recommended circuit for the communication between 5V MCU and UART...................... 10 Figure 5-10 Reference design for antenna interface................................................................................11 Figure 5-11 RF layout reference..............................................................................................................11 Figure 5-12 Antenna layout..................................................................................................................... 12 Figure 5-13 Clearance around the antenna.............................................................................................. 12
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Neo_WL680 Hardware User Guide
Table of Tables Table 3-1 WL680 specifications................................................................................................................1 Table 4-1 Wl680 pin definition................................................................................................................. 3 Table 5-1 Power supply and switch interface............................................................................................2 Table 5-2 DTR and RING pins..................................................................................................................7 Table 5-3 LED indicator............................................................................................................................7 Table 5-4 Reset pin....................................................................................................................................8 Table 5-5 VMC..........................................................................................................................................8 Table 5-6 UART........................................................................................................................................8
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Neo_WL680 Hardware User Guide
1 Overview WL680 is a WiFi module that supports the IEEE802.11b/g/n protocol. It integrates wireless network protocol IEEE802.11 and TCP/IP protocol stacks inside. WL680 consists of MAC, baseband controller, RF transceiver, and power amplifier. You can control the module through the UART interfaces. It is widely applied to smart tablets, smart home, smart grids, and other industrial or consumer electronics. This document defines the features, indicators, and test standards of the WL680 module and provides reference for the hardware design of each interface.
2 Block Diagram The WL680 module consists of MCU control parts and WiFi processing parts. The MCU control part contains abundant interfaces.
I2C UART
PA
SAW Filter
ADC
RF Section
MCU
MCU
PWM
Control
Audio
eHPI
BT
MAC Layer
3 Specifications Table 3-1 WL680 specifications Specifications
Description
Frequency
2.412 GHz to 2.484 GHz
Sensitivity
802.11b: -86 .5 dBm @ 11 Mbps (typical) 802.11g: -73 dBm @ 54 Mbps (typical) 802.11n: -69 dBm @ 65 Mbps (typical)
Transmit power
802.11b: +15 dBm (typical) 802.11g: +15 dBm (typical) 802.11n: +13 dBm (typical)
Data rate
802.11b: 1, 2, 5.5, 11 Mbit/s 802.11g: 6, 9, 12, 18, 24, 36, 48, 54 Mbit/s 802.11n: 6.5, 13, 19.5, 26, 39, 52, 58.5, 65 Mbit/s
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Neo_WL680 Hardware User Guide Wireless standards
IEEE802.11b/g /n
Modulation
DSSS, OFDM, DBPSK, DQPSK, CCK, QAM16/64
Operating
STA/AP
Network type
Infra/Adhoc/WIFI Direct (WFA P-2-P standard)
Security mechanism
WFA, WPA/WPA2, WPS2.0
Encryption type
WEP64/WEP128/TKIP/CCMP(AES)
Parameter configuration
UART/WEB server
Network protocol
TCP/IP, UDP, FTP, DNS, HTTP, SMTP
Communication interface
UART
UART rate
1200 to 921600 bit/s
AT
Extended AT commands
Open resources
UART, I2C, ADC, PWM, GPIO
Operating temperature
-30℃ to +80℃
Storage temperature
-40℃ to +85℃
Operating voltage
3.5 V to 4.3 V (3.9 V is recommended)
4 Encapsulation and Pins 4.1 Model Model
Function
Packaging
WL680-1-AA02
Standard module
71 Pin LGA
4.2 Specifications and Encapsulation Specifications
WL680
Dimensions
18 mm x 15 mm x 2.1 mm
Weight
2g
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Neo_WL680 Hardware User Guide Packaging
71-pin LGA Figure 4-1 Appearance of the M680 module
4.3 Pin Definition Table 4-1 Wl680 pin definition Pin
Signal
I/O
Function
Reset Status
Level Feature (V)
1
ON/OFF
DI
On/Off input
I/PU
0
