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WSN802GPA

型号：

WSN802GPA

描述：

802.11g无线传感器网络模块[ 802.11g Wireless Sensor Network Modules ]

品牌：

RFM[ RF MONOLITHICS, INC ]

页数：

6 页

PDF大小：

544 K

下载PDF手册
DEVELOPMENT KIT  
(Info Click here)  
WSN802GCA  
WSN802GPA  
· Small Size, Integral Antenna, Light Weight, Low Cost  
· 7.5 µA Sleep Current Supports Battery Operation  
· Timer and Event Triggered Auto-reporting Capability  
· Analog, Digital, Serial and SPI I/O for Sensor Applications  
· -40 to +85 oC Operating Temperature Range  
802.11g  
Wireless  
Sensor  
· FCC, Canadian IC and ETSI Certified for Unlicensed Operation  
Network  
Modules  
WSN802GCA and WSN802GPA transceiver modules are low cost, robust solutions for  
802.11g sensor networks. The very low sleep current required by these modules makes  
long life battery operation practical. The WSN802G modules include analog, digital,  
serial and SPI I/O, providing the flexibility and versatility needed to serve a wide range  
of sensor network applications. WSN802GCA and WSN802GPA modules are easy to  
integrate, require no external antennas and are compatible with standard 802.11b/g  
access points.  
WSN802G Absolute Maximum Ratings  
Rating  
Input/Output Pins Except ADC Inputs  
ADC Input Pins  
Value  
Units  
V
-0.5 to +3.63  
-0.5 to 1.98  
-40 to +85  
V
Non-Operating Ambient Temperature Range  
oC  
WSN802G Electrical Characteristics  
Characteristic  
Operating Frequency Range  
Spread Spectrum Method  
RF Chip Rate  
Sym  
Notes  
Minimum  
Typical  
Maximum  
Units  
2401  
2474  
MHz  
Direct Sequence  
11  
Mcps  
Mbps  
RF Data Rates  
1, 2, 5.5 and 11  
BPSK at 1 Mbps, QPSK at 2 Mbps,  
CCK at 5.5 and 11 Mbps  
Modulation Type  
Number of RF Channels  
RF Channel Spacing  
Receiver Sensitivity, 8% PER:  
1 Mbps RF Data Rate  
2 Mbps RF Data Rate  
5.5 Mbps RF Data Rate  
11 Mbps RF Data Rate  
RF Transmit Power EIRP  
Antenna  
11  
5
MHz  
-92  
dBm  
dBm  
dBm  
dBm  
mW  
-90  
-84  
-81  
10  
Integral Chip Antenna  
www.RFM.com E-mail: info@rfm.com  
©2009-2010 by RF Monolithics, Inc.  
Page 1 of 6  
WSN802GCA/PA - 10/05/10  
WSN802G Electrical Characteristics  
Characteristic  
ADC Input Range  
Sym  
Notes  
Minimum  
Typical  
Maximum  
Units  
V
0
1.8  
ADC Input Resolution  
10  
bits  
MW  
bits  
ADC Input Impedance  
1
PWM Output Resolution  
16  
1.2, 2.4, 4.8, 9.6 (default), 19.2, 28.8, 38.4, 57.6,  
76.8, 115.2, 230.4, 460.8, 921.6  
Data Serial Port Baud Rates  
kbps  
kbps  
1.2, 2.4, 4.8, 9.6 (default), 19.2, 28.8, 38.4,  
57.6, 76.8, 115.2  
Diagnostic Serial Port Baud Rates  
Serial Peripheral Interface (SPI) Data Rate, Master Mode  
Serial Peripheral Interface (SPI) Data Rate, Slave Mode  
Digital I/O:  
11  
2
Mbps  
Mbps  
Logic Low Input Level  
-0.3  
2.24  
50  
0.7  
VCC  
1000  
0.4  
V
V
Logic High Input Level  
Input Pull Up Resistor  
KW  
V
Logic Low Output Level  
0
Logic High Output Level  
2.4  
+3  
VCC  
+3.63  
10  
V
Power Supply Voltage Range  
Power Supply Voltage Ripple  
Receive Mode Current  
VCC  
Vdc  
mVP-P  
mA  
mA  
µA  
150  
200  
Transmit Mode Current  
Sleep Mode Current  
7.5  
WSN802GCA Mounting  
Reflow Soldering  
Socket  
WSN802GPA Mounting  
Operating Temperature Range  
Operating Relative Humidity Range, Non-condensing  
-40  
10  
85  
90  
oC  
%
CAUTION: Electrostatic Sensitive Device. Observe precautions when handling.  
www.RFM.com E-mail: info@rfm.com  
©2009-2010 by RF Monolithics, Inc.  
Page 2 of 6  
WSN802GCA/PA - 10/05/10  
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s c e i v e r  
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Figure 1  
Rev F WSN802G Firmware  
WSN802GCA/WSN802GPA Hardware  
The WSN802GCA and WSN802GPA operate in the inter-  
national 2.4 GHz ISM band over the frequency range of  
2401-2474 MHz, with a nominal RF output power of  
10 mW and a nominal antenna gain of 0 dBi. WSN802G  
modules support four standard 802.11g RF data rates -  
1, 2, 5.5 and 11 Mbps.  
The major firmware components in the WSN802G in-  
clude the 802.11g stack and the application protocol.  
The WSN802G acts as a UDP client to a data and/or  
sensor application running on a network server.  
The application protocol supports three operating modes:  
(1) sleeping sensor node with timer or interrupt auto-  
reporting, (2) sleeping serial data node with timer or inter-  
rupt wake-up and (3) always on sensor or serial data  
node with auto-reporting. Modes 1 and 2 take full advan-  
tage of the very low sleep current capability of the  
WSN802G. The module sleeps unless the WAKE_IN  
input is asserted or the AutoReport timer fires. A Wake-  
Timeout timer is provided to hold the module awake for  
a configurable period. The WakeTimout timer is held in  
reset as long as WAKE_IN is asserted, serial data is  
being received, an RF packet is being sent or received,  
or if the module is uncommissioned.  
The WSN802G transceiver module provides a variety of  
hardware interfaces. There are two serial interfaces, one  
for data and a second for diagnostics. The data port sup-  
ports standard serial baud rates from 1.2 to 921.6 kbps,  
with optional hardware flow control. The diagnostic port  
supports standard baud rates from 1.2 to 115.2 kbps.  
The WSN802G also includes an SPI port that supports  
data rates up to 2 Mbps in slave mode, and up to  
11 Mbps in master mode.  
The WSN802G includes two 10-bit ADC inputs, one  
16-bit PWM (DAC) output, and four general purpose I/O  
(GPIO) ports to support sensor network applications.  
The WSN802G asserts WAKE_OUT whenever it is  
awake to notify its external host. The module also sends  
an I/O status report automatically each time WAKE_IN is  
asserted, and/or each time the AutoReport timer fires.  
WSN802G modules with integral antenna are available in  
two mounting configurations. The WSN802GCA is de-  
signed for solder reflow mounting, and the WSN802GPA  
is designed for plug-in connector mounting.  
www.RFM.com E-mail: info@rfm.com  
©2009-2010 by RF Monolithics, Inc.  
Page 3 of 6  
WSN802GCA/PA - 10/05/10  
WSN802G I/O Pad Descriptions  
Pin  
1
Name  
GND  
I/O  
-
Description  
Power supply and signal ground. Connect to the host circuit board ground.  
Diagnostic serial port output.  
2
DIAG_TX  
DIAG_RX  
GPIO0  
O
I
3
Diagnostic serial port input.  
4
I/O Configurable digital I/O port 0. An internal weak pull up is provided when configured as an input.  
5
RADIO_TXD  
RADIO_RXD  
O
I
Serial data output from the radio.  
Serial data input to the radio.  
6
UART/SPI flow control output. The module sets this line low to indicate it is ready to accept data from the host  
on the RADIO_RXD or MOSI input. When the module sets this line high, the host must stop sending data.  
7
8
9
/HOST_CTS  
/HOST_RTS  
PWM0  
O
I
UART flow control input. The host sets this line low to allow data to flow from the module on the RADIO_TXD  
pin. When the host sets this line high, the module will stop sending data to the host.  
16-bit pulse-width modulated output 0 with internal low-pass filter. Filter is first-order, with a 159 Hz 3 dB  
bandwidth, 10K output resistance.  
O
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
GPIO2  
GPIO1  
GPIO3  
RSVD  
VCC  
I/O Configurable digital I/O port 2. An internal weak pull up is provided when configured as an input.  
I/O Configurable digital I/O port 1. An internal weak pull up is provided when configured as an input.  
I/O Configurable digital I/O port 3. An internal weak pull up is provided when configured as an input.  
-
I
-
-
I
I
I
Reserved pin. Leave unconnected.  
Power supply input, +3.0 to +3.63 Vdc.  
GND  
Power supply and signal ground. Connect to the host circuit board ground.  
Power supply and signal ground. Connect to the host circuit board ground.  
Active low module hardware reset.  
GND  
/RESET  
ADC0  
ADC1  
10-bit ADC input 0. ADC full scale reading can be referenced to the module’s +1.8 V regulated supply.  
10-bit ADC input 1. ADC full scale reading can be referenced to the module’s +1.8 V regulated supply.  
SPI master in, slave out function. This pin is an input when the module is operating as a master, and is an  
output when the module is operating as a slave.  
20  
21  
MISO  
MOSI  
I/O  
I/O  
I/O  
SPI master out, slave in function. This pin is an output when the module is operating as a master, and is an  
input when the module is operating as a slave.  
SPI active low slave select. This pin is an output when the module is operating as a master, and an input  
when it is operating as a slave.  
22  
23  
24  
/SS  
SCLK  
I/O SPI clock signal. This pin is an output when operating as a master, and an input when operating as a slave.  
Module’s +3.3 V regulated supply, available to power external sensor circuits. Current drain on this output  
should be no greater than 50 mA.  
3.3V_OUT  
O
Module’s +1.8 V regulated supply, used for ratiometric ADC readings. Current drain on this output should be  
no greater than 10 mA.  
25  
ADC_REF  
O
26  
27  
28  
29  
30  
WAKE_IN  
WAKE_OUT  
GND  
I
O
-
Active high interrupt input to wake the module from timer sleep. Can be used to wake module on event, etc.  
Active high output asserted when module wakes from timer sleep. Can be used to wake an external device.  
Connect to the host circuit board ground plane.  
RSVD  
-
Reserved pin. Leave unconnected.  
GND  
-
Connect to the host circuit board ground plane.  
www.RFM.com E-mail: info@rfm.com  
©2009-2010 by RF Monolithics, Inc.  
Page 4 of 6  
WSN802GCA/PA - 10/05/10  
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Figure 3  
www.RFM.com E-mail: info@rfm.com  
©2009-2010 by RF Monolithics, Inc.  
Page 5 of 6  
WSN802GCA/PA - 10/05/10  
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Figure 5  
Note: Specifications subject to change without notice.  
Part # M-0802-1005, Rev C  
www.RFM.com E-mail: info@rfm.com  
©2009-2010 by RF Monolithics, Inc.  
Page 6 of 6  
WSN802GCA/PA - 10/05/10  
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