EasyRadio Transceiver Module Datasheet - AVRcard

LPRS Data SheetEasy -Radio ER900TS Transmitter, ER900RS Receiver & ER900TRS TransceiverER900RS ReceiverThe Easy-Radio 900 Receiver is a complete sub-system that combines a high performance low power RFreceiver, a ‘flash’ programmable microcontroller and a voltage regulator (Figure 3). The microcontrollerprogrammes the functions of the RF receiver and provides the interface to the host system via a data output.It also contains programmable EEPROM memory that holds configuration data for the various receiveroperating modes. The microcontroller also relieves the host from the intensive demands of searching forsignals within the noise, recovering the received data and then presenting it to the host. A Received SignalStrength Indicator output can be optionally used to measure received signal levels. The module connects toa 50 Ohm antenna such as a whip, helical or PCB loop.Antenna (1)RegulatorRSSI Output (3)Vcc (8)RF ReceiverMicroProcessorBSY (4)Serial Data Output (5)Serial Data Input (6)RDY (7)Ground (9)RF Ground (2)Figure 3 Easy-Radio Receiver Block DiagramThe ER900RS will receive and decode any Easy-Radio transmission within range and on the samefrequency and deliver clean data to the host system for further processing.The Serial Data Output operates at programmable standard Baud Rates (default/typical 19,200Baud).Key parameters (frequency, power output, serial baud rate etc.) of the module may be programmed usingthe Easy-Radio PC Software. (See page 12 for Easy Radio Configuration Command Set.)Pin Out38.0 mm4.0mm14.0mmTop View(Receiver)10.0mm15.0 mm1 23 4 5 6 7 8 9Pin Pitch 2.54 mm PCB Hole Size 1.0 mmFigure 4 Physical DimensionsEasy-Radio ER900TS, ER900RS & ER900TRS 1-1.doc Copyright LPRS 2003. March2004 Page 3 of 15