CMX7031 Datasheet, PDF (1/82 Pages) CML Microcircuits – Full Audio-band Processing

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  Selectable Audio Processing Order
 Full Audio-band Processing:
 MSK/FFSK Data Modem with Packet or Free-
Pre and De-emphasis, Compandor,
format Modes with FEC, CRC, Interleaving and
Scrambler and Selectable 2.55/3.0 kHz Filters Scrambling
 2 x RF Synthesisers (CMX7031 only)
 Inband Signalling: Selcall, DTMF, NOAA NWR
 3 x Analogue Inputs (Mic or Discriminator)
 Enhanced DSC Modem for Marine
Applications, offering support for DSC
expansion sequences and transmission of
continuous distress signals
 2 x Auxiliary ADCs and 4 x Auxiliary DACs
 Sub-Audio Signalling: CTCSS, DCS, XTCSS
 C-BUS Serial Interface to Host µController
 Tx Outputs for Single, Two-Point or I/Q Mod.
 Low-power (3.0V to 3.6V) Operation
 559bps PSK Modulator
 Available in 64-pin, 48-pin LQFP and VQFN
Packages
 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 FirmASIC^ component 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 Image™ can 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 Image™ releases, facilitating in-the-field upgrades.
This document refers specifically to the features provided by Function Image™ 1.5.
Continued…
 2013 CML Microsystems Plc