CM8888 CMOS INTEGRATED DTMF TRANCEIVER
The DBS 800 System integrates a sophisticated audio signaling processor designed for seamless operation within PMR (Private Mobile Radio) systems. This processor is crucial for implementing in-band tone signaling, which allows for effective communication and signaling between radio units. The system supports a variety of signaling protocols, including Selcall, which is a selective calling method that enables targeted communication. The supported Selcall standards—CCIR, ZVEI I, II, and III, and EEA—ensure compatibility with a wide range of existing communication systems.
In addition to Selcall, the processor is capable of handling 2-Tone Selcall, which uses two distinct tones to convey information, and DTMF encoding, which is commonly used in telecommunication systems for dialing and signaling. The flexibility of the FX803 is enhanced by its non-predictive tone decoder, which allows it to accurately interpret incoming tone signals without relying on predetermined patterns. This feature is particularly beneficial in dynamic environments where signaling conditions may vary.
The versatile encoding capabilities of the FX803 enable it to work with both standard and non-standard tone systems, making it a highly adaptable component for various applications in PMR communications. By employing advanced algorithms and signal processing techniques, the audio signaling processor ensures high reliability and clarity in tone signaling, supporting efficient communication in critical scenarios. The design and implementation of this processor by Consumer Microcircuits Limited reflect a commitment to innovation and quality in electronic communication solutions.As part of the DBS 800 System, this Audio signalling processor will provide an inband Tone signalling facility for PMR Radio systems. Signalling systems supported include Selcall (CCIR, ZVEI I, II and III, EEA), 2-Tone Selcall and Dual Tone Multi-Frequency (DTMF) encode.
Using a non-predictive Tone decoder and versatile encoders gives the FX803 th e capability to work in any standard or non-standard Tone system. By Consumer Microcircuits Limited 🔗 External reference
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