The FX/MX929B assembles application data received from the processor, adds forward error correction (FEC)
and error detection (CRC) information and interleaves the
result for burst-error protection.
After adding symbol and frame sync code-words, it converts the packet into filtered 4-level analogue
signals for modulating the radio transmitter.
In receive mode, the FX/MX929B performs the reverse function using the analogue signals from the receiver
discriminator.
After error correction and removal of the packet overhead, the recovered application data is supplied to the processor.
Any residual uncorrected errors in the data will be flagged. A readout of the SNR value during receipt of
a packet is also provided.
The FX/MX929B uses data block sizes and FEC/CRC algorithms compatible with the RD-LAP over-air standard.
The format used is suitable for other private applications which require the high-speed transfer of data
over narrow-band wireless links.
The device is programmable to operate at most standard bit-rates from a wide choice of Xtal/clock frequencies.
