Kit does digital filtering for wideband signal repeaters

Texas Instruments today introduced a four-channel wideband digital repeater evaluation module (EVM) that isolates up to four non-contiguous spectrum bands, each as wide as 35 MHz. The TSW4100 also offers a digital filter design tool for wireless basestations. The EVM can be used to rapidly implement a proof-of-concept repeater design.

The TSW4100 digital repeater EVM uses digital signal processing techniques to digitally filter wideband input signals and reduce spectrum interference. At the heart of the TSW4100 demonstration kit is TI's GC5016 digital upconverter (DUC)/digital downconverter (DDC), a digital signal processing device that can be configured to offer a four-, two-, or one-channel digital repeater. The TSW4100 EVM includes Graphical User Interface (GUI) software to simplify programming and digital filter configuration options. Users can modify parameters like channel bandwidth and gain, as well as signal ripple, shape and other functions.

The TSW4100 kit also features TI's analog solutions. These include the ADS5545 14-bit 170 MSPS analog-to-digital converter (ADC), the DAC5688 Dual 16-bit 800 MSPS interpolating digital-to-analog converter (DAC), and the CDCM7005 clock generation and distribution device.

The TSW4100EVM is available now and priced at $1499. TI will feature the TSW4100 as well as other new wireless infrastructure-analog products at the Mobile World Congress Conference in Barcelona. For more information, go to www.ti.com/tsw4100.

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