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Demonstration Kit for CMX618 and CMX7141



  • Target CMX IC and CMX618 Devices On-board
  • Function ImageTM load from C-BUS or Serial Flash Memory (this product is only currently valid with the CMX7141 Function Image™)
  • Mic., Speaker, Line-out and Tx/Rx Interfaces
  • Auxiliary ADC and DAC Interfaces
  • C-BUS serial Interface
  • Control by PC via the User's Microcontroller
  • Interfaces to RF Daughterboard with all Necessary Signals
  • On-Board Power Regulation and Distribution


  • For Demonstration and
    Design-in of CMX618 with CMX7141

Supply Requirement:

  • 4.5 to 5.5 V power supply

The DE6181 is designed to assist in the evaluation of this family of products, when loaded with a Function Image™ (FI) and the CMX618 IC.

The kit is in the form of a populated PCB comprising a target CMX IC and a CMX618 RALCWI IC with appropriate supporting components and circuitry. Function Images (FI) for dPMR radio designs and other applications are available from the CML website.

The board is fitted with connectors allowing the DE6181 to be operated with a CML PE0003 Interface Card and associated PC GUI software, or by direct connection between the target IC's C-BUS serial port and the user's µC development application or emulation system.

The Function Image™ (FI) can be loaded, on power-up, directly into the on-board target IC using the PE0003 interface or the user's system. Alternatively, it can be pre-loaded, separately, into the on-board Flash EEPROM for automatic operation on power-up.

The target CMX device is specially configured for use on the DE6181 kit and is not available as a production part. It is capable of demonstrating the operation of any CMX714x Digital PMR (dPMR) product.

The DE6181 board also incorporates all the necessary power-supply regulation facilities for operation from a single 5 volt supply, together with a number of board jumpers to enable various circuit arrangements to be effected.

Note: The target IC, the CMX7140, is a functional emulation IC for use with this DE6181 DemoKit and is not available as a production IC.

PCB Image


Design Support Information

DE6181 Support Package DE6181 Support Package
C-BUS Guides Guides to operation and interfacing
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