Product category:
Communications ICs (Wireless)
News Release from: CML Microcircuits | Subject: CMX7031
Edited by the Electronicstalk Editorial
Team on 06 October 2005
Radio processor has multiple
personalities
The CMX7031 is a novel two-way radio processor IC that enables a new and revolutionary approach to design.
The CMX7031 is a novel two-way radio processor IC that enables a new and revolutionary approach to design Based on 37 years of two-way radio IC design experience, CML presents this new processor IC as a "one for all" radio chip providing a comprehensive feature set as standard, along with a roadmap of function enhancements available through CML's FirmASIC component technology
This article was originally published on Electronicstalk on 6 Apr 2006 at 8.00am (UK)
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Two-way radio processors add new features
CML Microcircuits has upgraded the proprietary Function Image (FI-1.2) technology implemented on the FirmASIC based CMX7031 and CMX7041 two-way radio processors.
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Complete two-way radio processors meet all current and future global market requirements via flexible Function Image updates.
The CMX7031 is billed as "the" two-way radio processor, meeting the current and future global market requirements of modern analogue radio designs.
The key to the CMX7031 is its flexibility.
Adoption of the CMX7031 on a manufacturer's radio platform enables multistandard radios to be conceived in a single design.
Further reading
Radio processors add half-duplex 4FSK modem
Provides a complete digital baseband processing and data solution when used in conjunction with a suitable host microcontroller and RF circuit.
More features for frugal wireline comms controller
CML has enhanced the facilities and improved the performance of its CMX850 single-chip communications controller.
Enhanced baseband codec for modern digital radio
The CMX981 is an extremely-low-power advanced digital-radio baseband processor, combined on-chip with a voice codec/processor and an audio PA.
Professional and leisure two-way radios are all target applications within the capabilities of the CMX7031.
The specific functions of the CMX7031 device are determined by uploading its Function Image during device initialisation.
A new Function Image may be later provided to supplement and enhance device functions, expanding or modifying end-product features without the need for expensive and time-consuming design changes.
The benefit is a significant reduction in time-to-market along with commercial advantages over custom ASIC, structured ASIC, FPGA and DSP solutions.
The CMX7031 product is a full-function, half-duplex, audio, signalling and data processing IC, suitable for implementation in professional and leisure radio applications (PMR/LMR, trunking, GMRS, FRS, PMR446 and MURS), in the fields of marine VHF, aviation and amateur radio to name but a few of the applications suited to the CMX7031.
The CMX7031 provides concurrent subaudio-band and in-band signalling, complete audio processing and a comprehensive data modem implementation.
The data modem provides both a free-format data mode and robust flexible packet-data modes, using CRC, FEC, interleaving and scrambling.
The device also features two on-chip RF synthesisers, used for efficient switching between Rx and Tx operations.
Driven from the Xtal/reference clock input, user programmable PLLs generate all internal clocks with two programmable clock outputs available for external systems.
The CMX7031 supports a wide selection of Xtal/reference clocks and allows one clock source to be internally reused for both baseband and RF synthesiser functions.
To enable full control of radio functions and thus minimise overall chip count, auxiliary ADC and DAC functions are provided.
Coupled with a flexible power-control facility, this allows the device to maximise power saving when not processing signals or when specific functions are not enabled.
Tx enable and Rx enable output pins can be used to conveniently control external RF circuits.
A single command from the host microcontroller, via C-Bus (serial command and data interface), can instruct both the internal CMX7031 systems and external circuits to change between Tx and Rx operation.
The CMX7031 has Function Image upgrade flexibility built on FirmASIC technology, giving customisation options to suit a multitude of product specific applications.
Fully functional in the range 3.0 to 3.6V, this product is available as a 64-pin LQFP or VQFN package.
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