data brief for further information contact your local stmicroelectronics sales office. march 2011 doc id 18339 rev 2 1/4 4 STIH251 advanced stb decoder with integrated dvb-t2 and dvb-t demodulator features integrated dvb-t2 and dvb-t demodulator ? user-selectable mode ? compatible with low to high if tuners ? adc for rf signal strength indicator advanced high-definition video decoding (h264/vc-1/mpeg2) advanced standard-definition video decoding (h264/vc-1/mpeg2/avs) advanced multi-channel audio decoding (mpeg 1, 2, mp3, dd/dd+, aac/aac+, wma9/wma9pro) linux, windows ce and os21 compatible applications cpu 32-bit ddr1/ddr2 compat ible local memory interface multi-stream, dvr capable transport stream processing extensive connectivity (dual usb hosts, e-sata, ethernet mac/mii/rmii and pci) advanced security and drm support including svp, ms-drm and dtcp-ip description the STIH251 uses state-of-the-art process technology to provide a fully featured hd avc, dvb-t2 and dvb-t demodulator/decoder ic. it is a highly integrated system-on-chip, suitable for stb markets across terrestrial, and terrestrial/ip hybrid networks worldwide. jtag stb peripherals i/o digital video hd/sd in/out resets analog out clocks modes pcm i/o s/pdif out external interrupts clock gen system serv peripherals ssc uart mafe pwm infrared smartcard connectivity transport security analog video hd/sd out audio i/o display video i/o transport streams parallel/serial in/out audio decoder video decoder emi pci spi flash ctrl lmi system interfaces cpu stbus pcm players pcm reader dacs dual fdma bdisp blitter flash, sflash nor, nand usb e-sata ethernet daa demodulator dvb-t if in transport streams ddr1/ddr2 serial flash pci peripherals memory flash, sflash nor, nand dvb-t2 www.st.com
introduction STIH251 2/4 doc id 18339 rev 2 1 introduction the STIH251 is designed to be optimized, both in cost and performance, with the most advanced can tuners and silic on tuners available on the ma rket and is compliant with dvb-t2 and dvb-t standards.the STIH251 front end has one of the lowest power consumptions on the market today. this has been made possible thanks to technology and clock rate management. this also has the advantage of improving channel acquisition and re-acquisition efficiency. the STIH251 is delivered with a full suite of lo w-level drivers and app lication software, with detailed user manuals and reference design schematics to enable seamless integration in complex digital tv systems such as idtv, set-top boxes or pctv dongles. features benefits combines a configurable dvb-t2 and dvb-t demodulator with stb decoding and display functions this highly integrated soc helps to reduce board area and manufacturing cost, allowing low cost and small size stbs to be designed for dvb-t2 and dvb-t networks applications cpu, 32k i cache, 32k d cache superscalar performance from a single cpu core, using standard tools and operating systems (linux, os21) stmicroelectronics? video decoding system with st231 processor decoding of advanced high definition standards for mpeg2, h264, vc-1 broadcast, with the performance and flexibility for web-based content decoding such as flash ? , divx ? , mjpeg and real ? dual usb 2.0 hosts, e-sata, ethernet mac with mii/rmii and tmii, pci extensive high speed connectivity for the widest range of stb peripherals, such as flash drives, external hdds, home network controllers (for example moca ? , wi-fi), docsis ? modem and so on low power process, design and architecture best in class, low power standby mode, to meet emerging energy standards for stbs. dynamic configuration of power to individual sub-systems enables power-efficient active standby modes advanced 2d graphics and display subsystem which also supports 3d user interface effects and 1080p60 display output allows visually appealing user interfaces and video rich navigation to be offered to consumers, while high quality progressive output can be watched on the latest high definition displays
STIH251 revision history doc id 18339 rev 2 3/4 2 revision history table 1. document revision history date revision changes 16-dec-2010 1 initial release. 16-mar-2011 2 reference to dvb-c removed
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