ER900TS EASY RADIO, ER900TS Datasheet - Page 7

• Manufacturer Part Number: ER900TS
• Description: MODULE, TX, FM, 860-920MHZ
• Manufacturer: EASY RADIO

Specifications of ER900TS

• External Depth: 3.8mm
• External Length / Height: 12.5mm
• External Width: 32mm
• Frequency: 868MHz
• Operating Temperature Max: 65°C
• Operating Temperature Min: -20°C
• Output Power: 10mW
• Range: 150m

ERx00RS Receiver
The ERx00RS-02 Receiver is a complete sub-system that combines a high performance low power RF
receiver, a ‘flash’ programmable microcontroller and a voltage regulator (Figure 3). The microcontroller
programmes 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 receiver-
operating modes. The microcontroller also relieves the host from the intensive demands of searching for
signals within the noise, recovering the received data and then presenting it to the host. A Received Signal
Strength Indicator output can be optionally used to measure received signal levels. The module connects to
a 50Ω antenna such as a whip, helical or PCB loop.
The ERx00RS-02 will receive and decode any Easy-Radio transmission within range and on the same
frequency and deliver clean RS232 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 using
the Easy-Radio PC Software via SDI pin 6. (Easy Radio Configuration Command Set, later in this document)
Pin Out
LPRS Data Sheet
ERx00-02 Series V2.3
Antenna (1)
Datasheet Revision 2.3 Sept 2005
RF Ground (2)
10.0mm
14.0mm
Figure 3 Easy-Radio Receiver Block Diagram
RF Receiver
ER400TS Transmitter, ER400RS Receiver & ER400TRS Transceiver
ER900TS Transmitter, ER900RS Receiver & ER900TRS Transceiver
1
Pin Pitch 2.54 mm PCB Hole Size 1.0 mm
2
Figure 4 Physical Dimensions
15.0 mm
Easy-Radio ‘02’ (2
(Receiver)
38.0 mm
Top View
Processor
Regulator
Micro
3
4 5
Copyright LPRS 2005.
6 7 8 9
nd
Generation Modules)
RSSI Output (3)
Vcc (8)
BSY (4)
Serial Data Output (5)
Serial Data Input (6)
RDY (7)
Ground (9)
4.0mm
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