2/23/2004 - Illustrating its analog and mixed-signal systems expertise with design tools that optimize product development and reduce time to market, Texas Instruments Incorporated (TI) (NYSE: TXN) unveiled and demonstrated a new power line modem with e-meter platform at the 2004 Texas Instruments Developer Conference in Houston. This platform offers the system-level integration required to rapidly deploy next-generation remote metering products to market faster while reducing cost.
The Power Line Modem with E-Meter platform applies advanced Orthogonal Frequency Division Multiplexing (OFDM) signal processing techniques to transmitting low- to medium-speed data across low-voltage power lines appropriate for remote metering applications. OFDM makes the modem robust against multi-path interference and impulse noise that is common on power lines.
The kit consists of two modems, each packaged in a meter-sized box. The "slave" modem communicates either measured e-meter data or test data across a power line as requested by the "master" modem. The "master" modem can be optionally connected via RS-232 or USB to a PC to monitor the measured data or display modem error rates.
The new platform utilizes numerous TI analog and digital signal processing (DSP) components. An MSP430FE427-based single-chip microcontroller for single-phase e-meters is included on the slave unit to perform power measurement functions. The modem uses a TI TMS320C5409A DSP for its OFDM and Viterbi signal processing, an AFE1230 codec for data acquisition and filtering and a THS6182 line driver to drive data to the power line through a coupling transformer.
Designers Benefit from Level of Optimization, Lower Cost
TI´s platform technology works as a blueprint for designers, effectively decreasing design time by providing the customer with all schematics, gerbers, firmware, software, bill-of-materials - everything to rebuild the platform - and complete documentation. A cross between evaluation models, which are intended for general-purpose designs, and reference designs, which are optimized for individual applications, TI´s platforms give engineers more time to invest in design, while lowering overall project cost by eliminating months of system integration.
In addition to the Power Line Modem with E-Meter platform, Texas Instruments offers three other unique demonstration platforms that are currently available:
All the platforms will be displayed and demonstrated at the Texas Instruments Developer Conference. Developers can visit www.ti.com/platforms for more information regarding current and emerging platforms.
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