Qingdao Intelligent and Precise Electronics ZDWFM2402 IEEE 802.11 b/g/n 2.4GHz 2T2R USB Module User Manual
Qingdao Intelligent&Precise; Electronics Co.,Ltd IEEE 802.11 b/g/n 2.4GHz 2T2R USB Module
Users Manual
Qingdao Intelligent & Precise Electronics Co., Ltd
ZDWFM2402 User Manual
Product Name：IEEE 802.11 b/g/n 2.4GHz 2T2R USB Module
Model ：ZDWFM2402
1
1.Introduction
Thank you for using the Wi-Fi module product provided by Qingdao Intelligent&Precise
Electronics Co.,Ltd. Before use, please read this user manual carefully. Please follow the technical
specifications when using the module in your design and develop activities. Qingdao
Intelligent&Precise Electronics Co.,Ltd has the right to change the contents of this manual in
accordance with the needs of the technical development.
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.
FCC RF Radiation Exposure Statement Caution: To maintain compliance with the FCC’s RF exposure
guidelines, place the product at least 20cm from nearby persons.
Warning: Changes or modifications to this unit not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
Host labeling requirement:”Contains transmitter module FCC ID：2AJVQ-ZDWFM2402”
2
2．Product Information
2.1 Product Information
ZDWFM2402 wifi USB module is a wireless signal module device work at 2.4Ghz .ZDWFM2402 comply
with IEEE 802.11b、802.11 g and 802.11 n standard。It support up to 300Mbps physical layer transmitting rate.
ZDWFM2402 support USB 2.0, which has up to 480Mbps data rate.
ZDWFM2402 has 2T2R structure， has 2 onboard Antenna. It could provide stable wireless link with high
throughput。
ZDWFM2402 is a wireless WiFi signal module. It could transmit and receive WiFi wireless signal.
It is widely used to multi-media device, such as smart TV. Equiped with ZDWFM2402, a smart TV could
access to Wireless Local Network, which is also called WLAN or WIFI network. ZDWFM2402 helps multi-media
device achieve to send&receive data package in a wireless way.
2.2 Feature
●IEEE standard：IEEE 802.11b/g/n client
●operating Frequency 2.4Ghz
●support up to 300Mbps
●2T2R mode
●support 20MHz/40MHz different bandwidth
●support USB 2.0 high data rate mode，6-pin USB signal and power connector
●low power consumption
●support Wi-Fi direct link
●support WFA/ WPA/WPA2 /WPS2.0/WAPI security
●RoHs
2.3 MCU
MAC /baseband/RF：MT7603UN
3.Product Specification
3.1 Parameter
WLAN Standard
IEEE802.11b;IEEE802.11g;IEEE802.11n
Data Interface
universal Serial Bus(USB2.0)
3
Data rate
802.11b:11,5.5,2,1Mbps；
802.11g:54,48,36,24,18,12,9,6,Mbps；
802.11n:MCS 0 to 15 for HT20MHZ；
MCS 0 to 15 for HT40MHZ。
Modulation Mode
802.11g/n---OFDM(BPSK,QPSK,16QAM,64QAM)；
802.11b---CCK 11Mbps,5.5Mbp，QPSK 2Mbps ，BPSK 1Mbps。
Channel
2.4GHz
11:(Ch.1-11)-United States
13:(Ch.1-13)-Europe
14: (Ch.1-14)-Japan
Working Frequency
2.412~2.462 GHz- United States
2.412~2.484 GHz-Japan
2.412~2.472 GHz-Europe ETSI
Typical Tx Power
802.11b(802.11
CCK,11Mbps)
16dBm
802.11g(802.11
OFDM,54Mbps)
14dBm@54Mbps
802.11n
13dBm@HT20 MCS0
13dBm@HT20 MCS15
12dBm@HT40 MCS0
12dBm@HT40 MCS15
Receiver Sensitivity
-85dBm @ 11M(802.11b CCK,8% PER)
-65dBm @ 11M(802.11g OFDM,10% PER)
-64dBm @ MCS7(802.11n OFDM with 20MHz ,10% PER)
-61dBm @ MCS7(802.11n OFDM with 40MHz ,10% PER)
Working Voltage
5V±10% I/O supply voltage
Antenna Gain
2dBi
Antenna type
2 onboard Omni-directional antenna;
3.2
min
max
Working Temperature
-10
70
℃
Storage Temperature
-40
125
℃
4. Hardware information
4.1 structure dimension：（mm）
PCB Material：FR-4，Surface treatment：OSP。
Appearance Dimension（mm）： 40（+/- 0.2）×46.5（+/- 0.2）。
PCB thickness：1.0mm（+/-0.15mm）。
4
4.2 PIN definition
4.3 Block Diagram
USB 2.0
XP1
Connector
DC-DC Converter
SY8088
SOT23-5
U1
MCU
MT7603UN
QFN
U2
5V
3.3V
40MHz
XTAL1
Match
Circuit
Antenna
ANT1
Match
Circuit
Antenna
ANT1
BLOCK DIAGRAM