Austin, Texas - Silicon Laboratories Inc. has launched the Si2170, a complete, globally-compliant hybrid TV tuner with analog TV demodulator in a single CMOS IC. The company touts the Si2170 as the industry's first silicon TV tuner to exceed the performance of traditional discrete TV tuners, enabling TV makers to deliver improved picture quality and better reception for both analog and digital broadcasts.
A high level of integration eliminates over one hundred discrete components, enabling simpler design, lower manufacturing costs, higher production yields and improved reliability for integrated digital televisions (iDTVs), set-top boxes, and PC TV applications.
Silicon Laboratories states that for years the industry has attempted to replace the traditional discrete tuner with an integrated silicon tuner to enable cost reductions, reduce complexity, harmonize across standards and improve consumer device form factors. To date, silicon tuners have not been able to achieve these goals and iDTVs still use traditional discrete tuners to achieve the best performance in real-world reception conditions.
Simultaneously, the system complexity and cost of these solutions has increased to support reception of hybrid analog and digital broadcasts as well as regional broadcast standards and system requirements.
To exceed the performance of traditional discrete TV tuner implementations, the Si2170 silicon tuner integrates a highly linear RF front-end design incorporating a unique, merged low noise amplifier (LNA) and high-Q tracking filter to provide gain only around the desired channel frequency. This enables superior sensitivity and rejection of strong undesired channels and interference in severe broadcast conditions, translating into reception of more channels, reception of weak signals and improved picture clarity.
Silicon Labs' digital low-IF architecture enables the Si2170 to achieve the highest level of performance and integration while addressing the challenges created by hybrid analog and digital reception and multiple regional standards.
The architecture allows many functions typically relying on analog and discrete fixed components to be implemented with cost-effective and programmable digital signal processing. This enables TV manufacturers to optimize system parameters and comply with all worldwide cable and terrestrial broadcast standards including ATSC/QAM, DVB-T/C, ISDB-T/C, NTSC, PAL and SECAM.
The integrated ATV demodulator creates a universal interface to system ICs, further simplifying the customers' design and enabling coordination of tuner and demodulator functions to optimize reception of analog TV signals, eliminating visual beats or artifacts.
Designed in standard CMOS, the high level of integration of the Si2170 eliminates over one hundred discrete components including the tracking filter function, avoiding costly manual inductor tuning/alignment and resulting in significantly lower manufacturing costs.
The Si2170 TV enables a simpler design, reduced bill of materials, and lower manufacturing costs; the high level of integration also improves reliability, PCB production yields and reduces field returns.
As TV makers continue to design thinner form factors, the PCB footprint of the Si2170 also helps to enable the next generation of ultra-slim flat panel TVs.
The Si2170 hybrid TV tuner with analog TV demodulator is available now in a standard 7x7 mm, 48-pin QFN package.'Pricing begins at $3.95 USD in quantities of 10K.
For more information visit http://www.silabs.com.'