ST fabs integrated, flexible wideband RF synthesiser for software radio
The result is, ST says, the industry’s most flexible and highest-performance integrated wideband RF synthesiser, which it designed to meet the needs of rapidly-growing numbers of wireless standards and frequency bands that support an ever-expanding number of applications.
In applications such as base stations, radio links, satellite, communications, and test and measurement, overall system performance is tightly linked to RF synthesiser phase noise characteristics. These applications demand integration and cost optimisation with no compromise in RF performance. STW81200 supports development of multi-band, multi-standard software-defined radios across the wide frequency range of 50 MHz to 6 GHz, while delivering normalised in-band phase-noise floor of -227 dBc/Hz, a VCO phase noise of -135 dBc/Hz @1MHz offset with a 4.0 GHz carrier, and a noise floor of -160 dBc/Hz.
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The STW81200 is unique in its ability to be powered from a single unregulated supply at 5V, 3.6V, or 3.0V and tuned in consumption and performance extending the application range from traditional mains-powered infrastructure to battery-powered devices.
Compared to ST’s established STW8110x family, the new synthesiser delivers higher performance and greater flexibility by ensuring the same board design can support multiple bands and RF standards; higher integration and a reduced Bill-of-Materials deliver greater savings.
ST is currently sampling evaluation kits of the chip in 6 x 6 quad flat packs. The STW81200 costs $6 (1,000).
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