Brief Description
The FX829 is a low voltage CMOS integrated circuit, designed to provide the baseband audio and system signal-processing functions required for PAMR or PMR trunked radio applications. It operates in half-duplex mode under serial-bus control of the host µC.
The FX829 incorporates a dual-rate 1200/2400bps FFSK modem, with a software-flexible choice of synchronisation codewords, data run-length and CRC checking to suit a wide range of applications. These features allow very flexible handling of non-prescribed data on traffic channels in addition to the network signalling sent on control channels. A 16 character DTMF encoder is available in the transmit mode. The two-point modulation output has software programmable level-adjustment.

FEATUREs
· Rx Audio Processing
· Tx Audio Processing
· 1200/2400 Baud Modem
· DTMF Encoder
· Multi-standard Modem Formats
· ETS/MPT/PAA Standards Compatible
· Low Voltage Operation
· 24-pin Small Form Package