TV tuner aimed at emerging markets
Cost-optimized solutions such as Silicon Labs’ Si2155 TV tuner IC are expected to help them deliver high-quality TV models at competitive price points. DisplaySearch also predicts that flat-panel TV shipments (both LCD and plasma models) in China will nearly double from the 31 million units reported in 2009 to 59 million units in 2014, reaching a compound annual growth rate of 14 percent.
The Si2155 TV tuner IC builds on its award-winning Si217x TV tuners, which are in high-volume production at five of the world’s top seven TV brands. Silicon Labs says the Si2155 simplifies TV tuner design and qualification across all major worldwide analog and digital broadcast standards. It also combines easily with mainstream TV system-on-chip (SoC) devices, which integrate standard analog demodulators suitable for economy TVs.
Based on Silicon Labs’ patented TV tuner architecture, its next-generation TV tuners are claimed to deliver the industry’s highest immunity against blocker interference, resulting in the ability to receive the highest number of analog and digital channels in urban settings. The Si2155 IC’s RF front-end also said to offer unparalleled sensitivity performance and consistently tunes distant transmitters in non-urban settings. Available in a 5 mm x 5 mm QFN package, the Si2155 TV tuner integrates the complete signal path from RF input to IF outputs.
Compared to traditional discrete MOPLL-based tuner solutions, designs based on the Si2155 eliminate more than 100 external components including low-noise amplifiers (LNAs), tracking filter inductors (unlike other silicon tuners) and surface acoustic wave (SAW) filters, resulting in the simplest, lowest-cost BOM for a hybrid tuner. The Si2155 also enables cost-effective “on-board” tuner implementations using lower-cost external components.
The Si2155 IC shares a common application programming interface (API) with Silicon Labs’ entire TV tuner portfolio, which should help shorten the TV designer’s learning curve when moving from worldwide hybrid HDTVs to regionalized platforms and STB designs. A simple application circuit, common across all of Silicon Labs’ next-generation TV tuners, is provided to make on-board installations straightforward with immediate cost savings, while also being suitable for simplified, cost-effective CAN tuner modules.
For more information, visit www.silabs.com/pr/tv-tuner
If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :
