3.0 WSN802G Hardware
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Figure 3.0.1
WSN802G modules operate in the international 2.4 GHz ISM band over the frequency range of 2401-
2474 MHz, with a nominal RF output power of 10 mW. WSN802G modules support four standard
802.11g RF data rates, 1, 2, 5.5 and 11 Mbps. WSN802G modules provide a variety of hardware inter-
faces. There are two serial interfaces, one for data and a second for diagnostics. The data port supports
standard serial baud rates from 1.2 to 921.6 kbps, and the diagnostic port supports standard serial baud
rates from 1.2 to 115.2 kbps. Optional hardware flow control is provided for the data serial port. There is
also a serial peripheral interface (SPI), which can operate in either master or slave mode. SPI slave mode
supports data rates up to 2 Mbps, and master mode supports data rates up to 11 Mbps.
WSN802G modules includes two 10-bit ADC inputs, a 16-bit PWM (DAC) output, and four general pur-
pose input/output (GPIO) ports. WSN802G modules are available with either RF connectors for external
antennas, or with integral chip antennas (A suffix). WSN802G modules are available in two mounting con-
figurations. The WSN802GC and WSN802GCA are designed for solder reflow mounting, and the
WSN802GP and WSN802GPA are designed for plug-in connector mounting.
3.1 Absolute Maximum Ratings
Rating
Sym
Value
Units
V
Input/Output Pins Except ADC Inputs
ADC Input Pins
-0.5 to +3.63
-0.5 to 1.98
-40 to +85
V
oC
Non-Operating Ambient Temperature Range
Table 3.1.1
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Page 11 of 101
WSN802G - 03/16/11
RFM [ RF MONOLITHICS, INC ]
