Based on SiliconLabs' patented TV tuner architecture, the Si2155 provides ultra-clear analog and digital broadcast TV reception. By providing superior linearity and fully integrated high-quality tracking filter inductors, SiliconLabs' next-generation TV tuner has the industry's highest immunity to interference, allowing it to receive the most analog and digital TV channels in the city. The RF front end of the Si2155 integrated circuit also offers unparalleled sensitivity performance and consistent tuning characteristics, even in rural areas far from the launch pad.
The Si2155 TV tuner is available in a compact 5mm & TImes; 5mm QFN package. By minimizing board size and device count and supporting low-cost external components, the Si2155 TV tuner enables TV manufacturers to reduce system cost. The Si2155IC integrates a complete signal path from the RF input to the IF output. Compared to traditional discrete MOPLL-based tuner solutions, the Si2155-based design reduces over 100 peripheral devices, including low noise amplifier (LNA), surface acoustic wave (SAW) filters, and other silicon tuners. A tracking filter inductor is required, which makes the hybrid tuner the easiest to design and the lowest BOM cost. The Si2155 also supports cost-effective on-board tuner designs with low-cost external components.
description:
The Si2155 integrates a complete hybrid TV tuner supporTIng all worldwide terrestrial and cable TV standards. Leveraging Silicon Labs' field proven digital low-IF architecture, the Si2155 maintains the unmatched performance and design simplicity of the Si2153 while further reducing footprint size and bill of materials Cost. No external LNAs, tracking filters, wirewound inductors, or SAW filters are used.
Compared with compeTIng silicon tuners and discrete MOPLL-based tuners, the Si2155 delivers superior picture quality and a higher number of received staTIons in crowded and near/far real-world reception conditions. The high linearity and low noise RF front-end delivers Performance and higher sensitivity in the presence of strong undesired channels and interference.
The Si2155 integrates the complete signal path from antenna input to IF outputs for both analog and digital transmission standards. Compared to traditional discrete MOPLL-based tuners, the Si2155 eliminates hundreds of external components including external LNAs, tracking filter varactors and inductors (unlike competing silicon Tuners), and SAW filters, resulting in the simplest, lowest-cost BOM for a hybrid TV tuner.
Interfacing the Si2155 seamlessly with the Si2165 DVB-T/C demodulator creates a complete terrestrial and cable DVB-T/C receiver plus PAL/SECAM tuner.
characteristic:
Worldwide hybrid TV tuner
Analog TV: NTSC, PAL/SECAM
Digital TV: ATSC/QAM, DVB-T/T2/C, ISDB-T/C, DTMB
42-870 MHz frequency range
Compliance to A/74, NorDig, D-Book, C-Book, ARIB, EN55020, OpenCableTM specifications
Best-in-class real-world reception
Exceeds discrete MOPLL-based tuners
Highly integrated, lowest BOM
No SAW filters or wirewound inductors required
Integrated LNAs and complete tracking filters
No alignment, tuning or calibration required
Digital low-IF architecture
Integrated channel select filters
Flexible output interface
ALIF to analog TV demodulator or SoC
DLIF to digital TV demodulator or SoC
3.3 and 1.8 V power supplies
Standard CMOS process technology
5 x 5 mm, 32-pin QFN package
RoHS compliant
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