The world's smallest digital STB tuner IC with integrated loop output technology effectively reduces BOM costs and saves energy consumption
Silicon Labs (Silicon Technology Co., Ltd.) launched a new series of high-performance digital set-top box (STB) tuner IC products, designed to reduce the cost, complexity and power of cable, terrestrial, hybrid terrestrial/satellite and IP-based STB products Consumption. Silicon Labs' new Si2144 and Si2124 digital tuner ICs can effectively help STB designers reduce board area and bill of materials (BOM) costs by virtue of excellent single-chip integration and the smallest package size in the industry. The integrated loop output (LT, Loop-Through) technology of Si2144/24 tuner series products also helps to reduce the overall cost and power consumption of the system.
Silicon Labs' Si2144/24 series products provide the best digital tuner solutions for the global cable, terrestrial and hybrid terrestrial set-top box market (it is expected that the STB market will ship more than 100 million units this year). As the world's largest STB market, China is now a powerful country in STB design and manufacturing that can meet both domestic consumption and export needs. Silicon Labs' Si2144/24 digital tuner has received strong support from China's leading terrestrial and cable STB system-on-chip (SoC) provider.
Because of the six-generation evolutionary video tuner technology based on Silicon Labs and the digital low-IF (low-IF) architecture verified by more than 400 million TVs worldwide, the Si2144/24 series products fully meet the performance, cost, and size of STB applications. And the demand for green energy. In addition, Si2144/24 series products support all global cable and terrestrial STB standards (ATSC/QAM, DVB-T2/C2/T/C, ISDB-T/C and DTMB).
Loop output (LT) technology, that is, routing the RF input signal to the RF output port so that it can be used by other devices such as traditional analog TVs, is a key functional requirement in many STB designs. The Si2144/24 IC is the smallest and most energy-efficient STB tuner chip among similar products with integrated LT technology in the market. It consumes less than 500 milliwatts, which greatly reduces the overall power consumption of the STB and reduces the power supply. And the design requirements of heat dissipation and the system cost of multi-tuner design.
In addition to the integrated active LT technology (enabled when the STB is powered on), the Si2144/24 tuner also has an "off-through" passive LT technology, which can continue to provide LT functions after the STB is shut down or even after the power plug is unplugged. Passive LT greatly reduces STB's standby power consumption, allowing STB manufacturers to make their products more energy-efficient and environmentally friendly, and help consumers save energy. All existing similar CMOS STB tuners need to use high-cost off-chip devices to achieve the "off-through" function.
The Si2144/24 chip is currently the smallest STB tuner and supports a very small 3 mm x 3 mm QFN package. This ultra-compact package combined with the smallest number of BOM devices makes it the smallest (0.86 cm2) STB tuner solution in the market. In addition, Si2144/24 has the lowest BOM cost among all STB tuner products currently in mass production. Unlike other competitors' STB tuners, the Si2144/24 tuner does not require a balun at the RF input, and integrates all tracking filter inductors on-chip, minimizing system cost and design the complexity.
The Si2144/24 tuner provides better noise figure performance across the entire band. At the same time, it provides higher immunity performance without adding an off-chip filter circuit, such as anti-interference ability against LTE interference signals , Thus, provide unparalleled linearity, sensitivity and stable receiving performance in the global real application environment. Based on the LTE anti-interference requirements in the D-Book specification, Si2144/24 provides a 13dB margin, which enables the original broadcast TV picture to be clearly displayed on more than 400 million TV sets worldwide, and there is no case of returning due to LTE interference problems.
James Stansberry, Senior Vice President and General Manager of Internet of Things and Broadcast Products of Silicon Labs, said, "As a leading silicon tuner provider in the TV industry, we have incorporated years of engineering experience and six generations of proven architecture innovations into our Si2144/ 24 STB tuner series. Our Si2144/24 tuner provides the best balance for STB manufacturers in integrating RF performance, energy efficiency, extremely small package size and BOM savings, enabling them to effectively reduce the cost of STB design , Complexity and power consumption."
The Si2144/24 STB tuner series products share the same application programming interface (API) with all other Silicon Labs TV and STB tuner product series. This shared software API enables STB designers to greatly reduce the learning difficulty for STB designers when migrating from a global hybrid HDTV to a regional platform and STB design. The simple application circuit for all Silicon Labs TV and STB tuners makes the on-board design that can bring direct cost savings extremely simple and easy.
Price and availabilityThe Si2144/24 digital STB tuner has been mass-produced and samples are available, supporting a 3mm x 3mm 24-QFN package. The unit price of the Si2144 digital cable and terrestrial STB tuner is US$0.74 in the purchase of 10,000 pieces, and the unit price of the Si2124 digital terrestrial STB is US$0.70 in the purchase of 10,000 pieces. In order to help developers speed up development and design, Silicon Labs also provides Si2144-A-EVB and Si2124-A-EVB evaluation boards, with a retail price of US$395.
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