CMX7031 Processor Datasheet

CMX7031 Datasheet, PDF, Equivalent


Part Number

CMX7031

Description

The Two-Way Radio Processor

Manufacture

Consumer Microcircuits Limited

Total Page 30 Pages
Datasheet
Download CMX7031 Datasheet


CMX7031
CMX7031/CMX7041
CML Microcircuits
The Two-Way Radio
COMMUNICATION SEMICONDUCTORS
Processor
D/7031/41_FI1.x/13 July 2013
DATASHEET
Provisional Issue
7031/7041 FI-1.5: Baseband Audio and Data Processor with Auxiliary System
Clocks, ADCs and DACs for use in Analogue Radio Systems
Features
Concurrent Audio/Signalling/Data Operations
Full Audio-band Processing:
Pre and De-emphasis, Compandor,
Scrambler and Selectable 2.55/3.0 kHz Filters
2 x RF Synthesisers (CMX7031 only)
Inband Signalling: Selcall, DTMF, NOAA NWR
3 x Analogue Inputs (Mic or Discriminator)
2 x Auxiliary ADCs and 4 x Auxiliary DACs
C-BUS Serial Interface to Host µController
Low-power (3.0V to 3.6V) Operation
Available in 64-pin, 48-pin LQFP and VQFN
Packages
Selectable Audio Processing Order
MSK/FFSK Data Modem with Packet or Free-
format Modes with FEC, CRC, Interleaving and
Scrambling
Enhanced DSC Modem for Marine
Applications, offering support for DSC
expansion sequences and transmission of
continuous distress signals
Sub-Audio Signalling: CTCSS, DCS, XTCSS
Tx Outputs for Single, Two-Point or I/Q Mod.
559bps PSK Modulator
2 x Auxiliary System Clock Outputs
Flexible Powersave Modes
DAC outputs
ADC inputs
3.0V to 3.6V
Modulator
Discriminator
RF
RF Synthesiser 1
RF Synthesiser 2
CMX7031 only
GPIO
System Clock 1
System Clock 2
Reference Clock
CMX7031 / CMX7041
The Two-Way Radio Processor
Built on FirmASIC® technology
C-BUS
Host
µC
This document contains:
Datasheet
User
Manual
1. Brief Description
The CMX7031/CMX7041 FI 1.5 is a full-function, half-duplex, audio, signalling and data processor IC. This
makes it a suitable device for both the leisure radio markets (FRS, MURS, PMR446 and GMRS) and for
professional radio products (PMR/LMR, Marine and Trunking) with or without signalling and data facilities.
The device utilises CML’s proprietary FirmASICcomponent technology. On-chip sub-systems are
configured by a Function Image: this is a data file that is uploaded during device initialisation and defines
the device’s function and feature set. The Function Imagecan be loaded automatically from an external
EEPROM or from a host µController over the built-in C-BUS serial interface. The device’s functions and
features can be enhanced by subsequent Function Imagereleases, facilitating in-the-field upgrades.
This document refers specifically to the features provided by Function Image1.5.
Continued…
2013 CML Microsystems Plc

CMX7031
The Two-Way Radio Processor
CMX7031/CMX7041
The CMX7031 features two on-chip RF synthesisers, with easy Rx/Tx frequency changeover, and
programmable system clocks to minimise chip count in the final application.
The CMX7041 is identical in functionality to the CMX7031 with the exception that the two on-chip RF
Synthesisers have been deleted, which enables it to be supplied in a smaller package and with two extra
GPIO pins. This document refers to both parts generically as the CMX7031, unless otherwise stated.
When loaded with Function Image1.5, both devices perform simultaneous processing of sub-audio and
inband signalling and audio band processing (including frequency inversion scrambling, companding and
pre- or de-emphasis).
Other features include a complete MSK/FFSK modem for packetised or free-format data, a DSC modem,
two auxiliary ADC channels with four selectable inputs and up to four auxiliary DAC interfaces (with an
optional RAMDAC on the first DAC output, to facilitate transmitter power ramping).
The device has flexible powersaving modes and is available in both LQFP and VQFN packages.
Note that text shown in pale grey indicates features that will be supported in future versions of the device.
This Datasheet is the first part of a two-part document comprising Datasheet and User Manual: the User
Manual can be obtained by registering your interest in these products with your local CML representative.
2013 CML Microsystems Plc
Page 2
D/7031/41_FI1.x/13


Features CMX7031/CMX7041 CML Microcircuits The Two-Way Radio COMMUNICATION SEMICONDUC TORS Processor D/7031/41_FI1.x/13 Jul y 2013 DATASHEET Provisional Issue 7 031/7041 FI-1.5: Baseband Audio and Dat a Processor with Auxiliary System Clock s, ADCs and DACs for use in Analogue Ra dio Systems Features  Concurrent Au dio/Signalling/Data Operations  Full Audio-band Processing: Pre and De-emph asis, Compandor, Scrambler and Selectab le 2.55/3.0 kHz Filters  2 x RF Synt hesisers (CMX7031 only)  Inband Sign alling: Selcall, DTMF, NOAA NWR  3 x Analogue Inputs (Mic or Discriminator)  2 x Auxiliary ADCs and 4 x Auxilia ry DACs  C-BUS Serial Interface to H ost µController  Low-power (3.0V to 3.6V) Operation  Available in 64-pi n, 48-pin LQFP and VQFN Packages  S electable Audio Processing Order  MS K/FFSK Data Modem with Packet or Freefo rmat Modes with FEC, CRC, Interleaving and Scrambling  Enhanced DSC Modem f or Marine Applications, offering support for DSC expansion sequences and transmission of.
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