The MX803A is an audio signaling processor that provides inband tone signaling capabilities for LMR and other Radio systems. A low-power CMOS device, the MX803A is a member of the DBS800 (Digitally integrated Baseband Subsystem) IC family (See section 4.2). Supported Signaling systems include SelCall (CCIR, EEA, ZVEI I, II, and III) 2-Tone SelCall and DTMF encode. The use of a non-predictive decoder and a versatile encoder, allows the MX803A to operate in any standard or non-standard tone system.

FEATUREs
• Full Duplex Audio Signaling Processor Single Tone Selective Call systems
• Tone Decoder with programmable NOTONE timer.
• Two Individual tone encoders and a programmable TX Period Timer.
• Low Power CMOS Device
• On-Chip programmable amplifier.
• C-BUS Compatible

APPLICATIONs
• Signaling Systems supported SelCall (CCIR, EEA, ZVEI I / II /III) 2-Tone SelCall DTMF Encode
• Inband Tone Signaling capability for LMR and other Radio Systems.