The Si2170 silicon tuner is a
globally-compliant hybrid TV tuner with an analog TV demodulator in a single
CMOS IC. The device integrates a highly linear RF front-end design
incorporating a merged low noise amplifier and high-Q tracking filter to
provide gain only around the desired channel frequency. This design enables
superior sensitivity and rejection of strong undesired channels and
interference in severe broadcast conditions, resulting in superior channel
reception and improved picture clarity.
Silicon Labs' patented digital
low-IF architecture enables the Si2170 TV tuner to achieve exceptional
performance and integration while addressing the challenges created by hybrid
analog/digital reception and multiple regional standards. The architecture
allows many functions relying on analog and discrete fixed components to be
implemented with cost-effective programmable digital signal processing. This
enables TV manufacturers to optimize system parameters and comply with
worldwide cable and terrestrial broadcast standards. The Si2170 enables simpler
designs, reduced bill of materials and higher reliability. As TV makers
continue to design thinner form factors, the Si2170's small footprint helps
enable the next generation of ultra-slim flat-panel TVs. For years, the TV
industry has attempted to replace traditional discrete tuners with an integrated
silicon tuner to reduce cost and complexity, harmonize across standards and
shrink form factors while matching the performance of discrete solutions.
Silicon Labs met this challenge with the Si2170 - the first silicon TV tuner to
exceed the performance of discrete tuners, enabling TV makers to deliver improved picture quality and better reception for analog
and digital broadcasts. By designing the Si2170
in standard CMOS, Silicon Labs is the only company to offer a roadmap to cost-effective,
single-chip TV receivers that integrate tuner/demodulator functions in a single
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