Product category:
Communications ICs (Wireless)
News Release from: CML Microcircuits | Subject: CMX990
Edited by the Electronicstalk Editorial
Team on 21 September 2004
Minimalist wireless modems are now a
reality
The miniature wireless modem end-product is now a reality, says CML Microcircuits, using its time, space and component-saving wireless data IC, the CMX990.
The miniature wireless modem end-product is now a reality, says CML Microcircuits, using its time, space and component-saving wireless data IC, the CMX990 A single-chip GMSK packet-data modem with RF transceiver, this innovative half-duplex IC offers: 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
This article was originally published on Electronicstalk on 26 Aug 2005 at 8.00am (UK)
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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.
Packet-data modem IC is packed with features
The recent endorsement of CML's CMX990 GMSK packet-data modem IC, places the 'SuperChip' in a position as unique as the chip itself.
Offering a data range of 4 to 16Kbit/s with selectable BT values, at RF frequencies of 400MHz to 1GHz, the CMX990 is formattable 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.
The CMX990 employs 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.
Further reading
Platforms are shortcut to RF development
Kits enable quick and easy evaluation and speedy development of the CMX990 RF transceiver with integrated GMSK modem.
More features for frugal wireline comms controller
CML has enhanced the facilities and improved the performance of its CMX850 single-chip communications controller.
Automatic receiver clock extraction and signal level measurement and compensation allow the CMX990 modem to operate in all signal conditions.
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 available 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.
To speed up the design-in of the CMX990 and to allow designers full access to all functions of the chip and its external components, two separate full-feature PCB-based kits are available: the EV9000 to demonstrate general data operation, and the DE9901 for total "plug-and-play" Mobitex operation.
Complete with an embedded Mobitex object code, the DE9901 will enable the user to "log-in" directly to an on-air Mobitex network.
With an extremely low operational power requirement at 3.0V and available 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.
The CMX990 will be launched at the 2004 Mobitex Business and Networking Conference in Gothenburg, Sweden, 20th-22nd September.
This product, along with two additional new products (CMX910 AIS IC and CMX8110 two-way radio processor with RF support), will also be demonstrated on the CML stand (A5-201) at Electronica, Munich, Germany in November.
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