Analogue Radio ICs - Two way Radio Baseband Processor ICs
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CML Microcircuits COMMUNICATION SEMICONDUCTORS Analogue Radio ICs Two-Way Radio Baseband Processor ICs The CML Family of Analogue Radio ICs CMX7031 Two-Way Radio Processor/4-Level FSK Modem/ C4FM Modem - with RF Support Two-Way Radio Processor/4-Level FSK Modem/ C4FM Modem Baseband Processor for PMR and Trunked Radios Baseband Processor, with GPS Data Transport for FRS, MURS, PMR446 and GMRS ‘Leisure’ Radios Function Image™ C-BUS Control Audio Processing FRS/PMR446/GMRS ‘Family Radio’ Processor CTCSS ‘Type 2’ Encoder/Decoder A versatile collection of audio, signalling and data ICs to cater to the needs of most analogue radio systems. Ranging from the simple CTCSS codec to the highly integrated multi-function FirmASIC ® based products, the CMX7031 and CMX7041, at least one of the products showcased in this document is suitable for your two-way radio design. Audio Tones System Clocks Two-Way Radio Processor ICs

The CML Advantage High Integration Supports Multiple On-chip Functions CML in Analogue Radio Voice, Signalling and Data ICs for Two-Way Radio Equipment Baseband Audio, Signalling, Data and RF Functions Multiple Functions Reduce Final Component Count Integral C-BUS Instruction Set and On-chip Signal Manipulation Reduce Host µC Overhead C-BUS Serial Interface Compatible with Most Serial Port Systems The CMX7031: A versatile IC based on FirmASIC® technology offering either full-feature baseband (voice, signalling and data) processing, 4-level FSK freeformat/packet data or C4FM data, depending...

CMX7031 and CMX7041 Two-Way Radio Processors (Function Image™ 1.x) . . . the platform approach to saving cost, time and space in two-way radio designs Analogue Supply Digital Supply Boot Xtal or Clock Settings Input C-BUS Serial Interface Features CTCSS EEPROM Interface Boot Control Xtal Oscillator C-BUS Interface Programmable Tone Selectable Single/Two-Point Selcall Main Clock Digital PLL Power Control Two-Tone Paging Internal Systems Control SYSTEM CONTROL Baseband Signal Inputs Freeformat/Packet FFSK/MSK or Marine DSC FSK TRANSMIT FUNCTIONS FFSK/MSK Modulator Voice LPF and Soft Limiter...

CMX7031 and CMX7041 Data Processing Functions . . . flexible modems for data-over-radio operations Analogue Supply Digital Supply (Function Image™ 2.x) (Function Image™ 3.x) 4-Level FSK Baseband Modem C4FM Baseband Modem Boot Xtal or Clock Settings Input Features Built on FirmASIC® Technology Half-Duplex 4-Level FSK Modem (FI-2.x) C-BUS Serial Interface EEPROM Interface Boot Control Xtal Oscillator C-BUS Interface Registers Main Clock Digital PLL Power Control Selectable Single/Two-Point SYSTEM CONTROL Internal Systems Control Baseband Signal Inputs Tx DATA FUNCTIONS C4FM 4-Level Modulator...

Audio Processing (Function Image™ 1.x) CMX7031 and CMX7041 Audio Functions The audio signal can be processed in a multitude of ways, depending on the implementation/s required. When configured for operation, to minimise the operating power requirement, all unused functions can be disabled and powered-down. Voiceband Processing Operations Half duplex operation Programmable soft Tx voiceband limiter to reduce effects of over-modulation Flexible routing architecture permits concurrent signal processing Rx and Tx channel filtering compliant with ETS-300-086 and TIA/EIA-603 specifications...

Signalling (Function Image™ 1.x) In the case of both Rx and Tx signalling sections, when suitably configured by the relevant Function Image™, these products offer a complete and comprehensive suite of inband, sub-audio and combination signalling functions, all to run concurrently with voiceband audio operations. Inband Signalling These two ICs, when configured by FI-1.x, support Selcall, two-tone paging, DTMF and user-programmable inband tones in the range 288 to 3000 Hz. The CMX7031 and CMX7041 implement QTC coding; by default, on-power-up, the IC will load the EEA Selcall tone-set, but, to...

Signal inputs from Tx audio processing circuits Transmit Functions Tx Modem Data Function Sub-Audio Signal Processing 51 tone CTCSS codec 0°/120°/180° CTCSS phase-shift generation (Tx) 0°/120°/180° CTCSS phase-shift detection (Rx) Tone Clone™ compatibility Programmable 23/24 bit DCS codec with ‘true’ and inverse modulation formats DCS end-of-transmission ‘off’ 134Hz tone-burst feature XTCSS sub-audio component encoding and decoding Two-Tone Paging CTCSS Tone Clone™ Tone Cloning™ is a process of automating the configuration of Family Radio type radios, especially when using radios from...

Data Functions Selected signals to voice and signal stages Rx DATA FUNCTIONS FFSK/MSK/DSC Bandpass Filter Freeformat/Packet FFSK/MSK or Marine DSC FSK or NWR SAME Test Mode to Tx Mode Select Rx Eye Analogue Routing Demodulator Rx DATA FUNCTIONS 4-Level FSK AFSD Sinc Filter Test Mode to Tx Mode Select Selected signals to voice and signal stages Tx DATA FUNCTIONS FFSK/MSK, DSC FFSK/MSK Modulator To Tx Mod Mode Select circuits Freeformat/Packet FFSK/MSK or Marine DSC FSK Wireless Data Modes FFSK/MSK and DSC Mod/Demod Function Image™ 1.x and SAME AFSK Demod To Tx Mod Mode Select circuits...

The CMX7031 and the CMX7041 ICs, operating under the currently available Function Image™ standards FI-1.x, FI-2.x and FI-3.x, each offer an on-chip wireless data function. FFSK/MSK Data Processing (FI-1.x) Freeformat and packet capabilities 16-bit frame sync detector, error correction, data scrambling/descrambling and interleaving Frame head decoding 1200/2400 bps FFSK/MSK data modem with autobauding On-chip clock recovery Flexible packet data facility suitable for: - Text messaging - Calling line ID - Caller location - Digital poll of remote systems - GPS information in NMEA 0183 format -...

Signal Interfacing and Routing These products offer a very flexible on-chip routing architecture with three selectable signal inputs, and where configured by a Function Image™, two separate, multiplexed signal processing paths. The output interface offers a selection of two modulator drive outputs selectable to single, two-point and I and Q modulation schemes. A single audio (Rx or Tx voice or tone output) channel is selectable. To reduce transients when switching to the Tx mode, the MOD output signals can be programmed to ‘ramp-up’ and ‘ramp-down’ at a pre-programmed rate. Input Stages Input...