Digital PMR Processors
including dPMR and DCR Systems
- dPMR (ETSI TS 102 490) Compliant (FI-1.x)
- DCR (ARIB STD-T98 DCR) Compliant (FI-2.x)
- NXDN Compliant (FI-3.x)
- Air Interface Physical Layer (Layer 1)
- Air Interface Data Link Layer (Layer 2)
- 4-Level FSK Modem
- Half-duplex Operation
- 4.8 and 9.6 kbps Option
- Raw and dPMR Formatted Data Modes
- Automatic Frame Sync Insertion and Detection (AFSD)
- Two Auxiliary ADCs and
Four Auxiliary DACs - Three Analogue Inputs with Programmable Gain
- Auxiliary C-BUS Interface to CMX608 or CMX618
- Tx Outputs for Two-Point or I/Q Modulation
- Soft Decision Decoding Option
- Two RF Synthesisers (CMX7131 Only)
- Analogue Two-way Radio Processing Available
- using 7031/7041 Analogue TWR Function ImageTM - Vocoder Connectivity, Management, Control and Data Transport
- CML RALCWI and Third-party Vocoders Supported
- ATB010 dPMR RF Demonstrator Board Available
- Digital PMR Systems
- including dPMR and DCR
- CMX7131L9 - 64-pin LQFP
- CMX7131Q1 - 64-pin VQFN
- CMX7141L4 - 48-pin LQFP
- CMX7141Q3 - 48-pin VQFN
- 3.0 to 3.6 V
The CMX7131 and CMX7141 are half-duplex 4-Level FSK modem IC platforms built on FirmASIC™ technology and are suitable for use in digital radio systems, including dPMR, DCR and NXDN radio designs.
Alternatively, these ICs can be configured to operate as an Analogue Two-way Radio Processor.
Using CML's proprietary FirmASIC® component technology, on-chip sub-systems are configured by a Function Image™ (FI): this is a data file that is uploaded during device initialisation that defines the device's function and feature set.
Current Function Image™ files available for these products are:
- dPMR: 7131/7141FI-1.x
- DCR: 7131/7141FI-2.x
- Analogue Two-way Radio: 7031/7041FI-1.x
- NXDN: 7131/7141FI-3.x
In conjunction with a suitable host controller and RF circuits, these ICs provide the digital baseband processing to implement a radio to satisfy the requirements of ETS 102 490, EN 301 166 or EN 300 113 and ARIB STD-T98 DCR.
The Function Image™ can be loaded automatically from an external EEPROM or host µController over the built-in C-BUS serial interface. The device's functions and features may be enhanced by subsequent Function Image™ releases, facilitating in-the-field upgrades.
Other features include two Auxiliary ADCs with four selectable inputs and four auxiliary DAC interfaces
with an optional RAMDAC on the first DAC output, to facilitate transmitter power ramping).
The devices have flexible powersaving modes and each are available in both LQFP and VQFN packages.
Use with Vocoders
When used with a half-duplex vocoder IC, each device will provide a highly
integrated baseband solution for dPMR and DCR radio designs.
CML's Robust Advanced Low Complexity Waveform Interpolation
(RALCWI) and third-party (DVSI's
AMBE-2020™ and AMBE-3000™) vocoders are now supported.
Analogue Two-way Radio Processing
The CMX7131 and CMX7141 can be configured to operate as an Analogue Two-way Radio Processor using the CMX7031/CMX7041
Function ImageTM 7031/7041FI-1.3; an ability which offers a true 'dual-mode'
capability.
See the CMX7131/CMX7141 Technical Portal area
for more information.
Support Document
This document is available to further explain the advantages and implementation of this digital
PMR/LMR platform processor IC.
It is recommended that this is downloaded when investigating this product.
[Read or Download Support Document]
ATB010 dPMR RF Demonstrator
The ATB010 is a small, low cost, PCB-based RF technology demonstrator aimed at speeding
manufacturers' design and development of dPMR/PMR446 transceiver products.
The board is designed as a plug-in to the CML *DE6181 demonstration kit.
Along with a *PE0002 host controller a full RF transceiver can be assembled
to offer a variety of voice and data options configurable via Function Image™
and control scripts.
[Read or Download ATB010 dPMR RF Demonstrator Product Preview]
AMBE™ is a trademark of DVSI Inc.
Block Diagram
