DS650-6 June ‘06

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RF650

Operating Modes

Description

The RF650 radio transceiver module provides a reliable wireless communications for the transfer of data at

Gaussian Frequency Shift Keying (GFSK), Manchester encoded, RF data rates of up to 100 kbps. Their

unique features of narrow band operation and user channel selection combined with excellent interference

rejection make them an ideal choice for next generation applications. The transceivers have the functions of a

complete radio modem and simply require CMOS/TTL data at the transmit input and the corresponding

transceiver(s) output the same data. Preamble and CRC are automatically generated and added to the RF

transmission.

Operating within the 433MHz band the modules operate in user selectable channels. The RF650 can use any

channel in 100kHz steps. The modules both use a crystal controlled design which provides narrow band

performance which is far superior to other wideband ‘SAW’ based designs.

Possible applications include one-to-one and multi-node wireless links in applications including car and

building security, EPOS, inventory tracking, remote industrial process monitoring and computer networking.

Because of their small size and low power requirements, both modules are ideal for use in portable, battery-

powered applications such as hand-held terminals.

Part Numbering

Part Number

Description

RF650

Smart Radio Transceiver Module, 433MHz

RF650-868

Smart Radio Transceiver Module, 868MHz

RF650-EVAL

Evaluation Host PCB for RF650 Module (Module not Included)

Applications

•

Wireless Security Systems

•

EPOS Terminals

•

Sensor Data logging

•

Remote Telemetry & Telecommand

•

Remote Meter Reading