ALPHA Encoder / Decoder IC’s
Transmitter Encoder RF803E-ALPHA
RF803-ALPHA
Functional Description
The RF803E-ALPHA is a simple device to use. As shown in the application circuit below, it
requires only the addition of input switches and an ALPHA-TRX RF Module for use as the
transmitter in an end application. Transmission is automatic without user intervention.
The ID is designed to run in continuous sleep mode; on detecting a switch closure The
RF803E-APLHA will wake up transmit a secure data packet on the TX output.
The RF803E-ALPHA can be set as a simple transmit device, or, to expect an acknowledgement
signal back from the decoder.
The type of transmissions to send may also be configured
– Transmit only on state change,
– Transmit continuously whilst input is active.
Block Diagram
DS803-ALPHA-1 Nov ‘09
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