M2M evaluation kits

17 September 2008 Telecoms, Datacoms, Wireless, IoT

To allow evaluation and design-in of the CMX990, the tiny RF transceiver with integrated GMSK modem from CML Microcircuits, two separate full-featured PCB-based kits are available, giving designers full access to all functions of the chip and its external components.

The EV9900A is a flexible platform to allow users to configure and evaluate the CMX990 for various applications and frequency bands. Initial configuration is for 410 to 430 MHz operation with 25 kHz channel spacing at 9600 bps.

The EV9902 provides a graphical user interface (GUI) for the EV9900A kit. The kit is supplied as a Hyperstone hyBoard-XS evaluation board plus interface PCB, together with GUI software for a PC. The EV9902 connects simply to a Windows-based PC via a standard USB cable.

The interface to the EV9900A is also supplied. The GUI software allows users to directly write to and read from the CMX990 registers and perform realtime tasks for Mobitex or free-format frame transfers live over a RF link. The GUI software will calculate the CMX990 register values required to generate the user’s desired PLL frequencies and bit rates. The hyBoard-XS evaluation board is supplied pre-loaded with firmware, allowing realtime operations to be performed.

The CMX990 is a complete, low-power, single-chip wireless M2M (machine to machine) GMSK modem solution, available in a ‘no-leads’ 64-pin VQFN package, with no minimum order quantity.

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