Superchip enables Mobitex networking

The CMX990 is a time, space and component-saving wireless data IC that has achieved much critical acclaim since its launch at Electronica 2004.

The CMX990 is a time, space and component-saving wireless data IC that has achieved much critical acclaim since its launch at Electronica 2004.

Suited to a variety of M2M applications, from vending machines to utility meters and alarm panels, the CMX990 easily replaces CML's existing GMSK packet-data modem, the CMX909B IC, to give unparalleled performance in new generation products operating on the Mobitex network, among others.

As a single-chip GMSK packet-data modem with integrated RF transceiver, the innovative half-duplex CMX990, has been evaluated and approved by Swedish company Mobitex Technology, which describes the CMX990 as the CML "superchip".

Mobitex Technology designs, supplies and supports wireless packet switched data networks using unique Mobitex technology.

Mobitex itself is the world leading system for dedicated wireless data developed originally by Ericsson.

Mobitex Technology is operated from Gothenburg, Sweden, with extensive competence in the field of wireless data having supplied over 30 networks worldwide to major and independent telecomms operators.

The endorsement granted to CML's CMX990 places the "superchip" in a position as unique as the chip itself.

Offering a versatile baseband modem, IF and RF processing functions, programmable synthesisers, signal level-setting functions and comprehensive on-chip and peripheral control, monitoring and interfacing, the CMX990 pushes the M2M industry further forward, by reducing manufacturing BOM costs, end-product weight and power consumption, all due to it's clever design integration, developed in a joint partnership with Mobitex Technology (formerly Ericsson).

The CMX990 offers a data range of 4 to 16Kbit/s with selectable BT values, at RF frequencies of 400MHz to 1GHz.

The CMX990 is configurable to both free-format and packet data schemes, is fully Mobitex compatible and can be set to comply with EN300-113 and FCC CFR47 Part 90 standards, employing simple task-command configuration to provide simplicity and efficiency to the control and operation of the modem.

FEC, CRC, data scrambling and interleaving functions are available on the CMX990.

Automatic receiver clock extraction and signal level measurement/compensation allows the unit to operate in all signal conditions.

By employing external VCO inputs, the two programmable on-chip synthesisers provide all the frequencies necessary for wireless data operation.

Addressable on-chip DACs and ADCs are provided for control and monitoring of a wide range of external functions, including system levels and the VCO loops, with separate dedicated functions for RF PA stage and TCXO control.

With low operational power of 3.0V volts and availability in a "no-leads" 64 VQFN package, optimum power consumption can be assured at all times by the separate dynamic power saving of unused functions.

Three separate PCB-based kits are available for evaluation and speedy design-in of the CMX990.

The EV9900 is the universal CMX990 evaluation kit, to demonstrate general data operation; this board comes complete with a parallel interface to connect to an external host, and is loaded with components for use in the 800-900MHz band, with support for 400MHz operation.

The EV9902 is a Hyperstone microcontroller development card with embedded firmware, supplied with a PC based GUI, to allow easy evaluation of the CMX990, in general purpose non-Mobitex applications.

The DE9901 is a total "plug-and-play" Mobitex evaluation kit, complete with embedded Mobitex Technology object code.

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