新聞中心

友尚集團 : ST推出業界最新的DVB-T2機上盒SoC – STiH251

 2012-01-11

在此期電子報_機上盒專題中, 友尚推出了在此領域中讓人耳熟能詳的品牌 : 意法半導體 (ST) , 產品特性不但相對穩定,且支援每個設計者多數的需求,使得設計者更快速的完成設計…


這次我方將鎖定 DVB-T2 機種做介紹,以下就針對 STiH251 這晶片做更多的說明

 

【產品介紹】  ST推出業界最新的DVB-T2機上盒SoC – STiH251
 
先進的DVB-T2 高畫質 SoC 解碼
在此高畫質 SoC 解碼系列中也包括了STi7111/STi7141/STi7105 in production
所有產品都用ST “DELTA” 先進的視頻解碼技術
STiH251/250是一款技術領先,支持全功能HD AVC,將DVB-C,DVB-T/DVB-T2解調器和解碼器集成一體的晶元,目標市場為有線電視、地面廣播、地面廣播/互聯網混合等領域
STiH251是STi7105增強功能的衍生版
包括集成的DVB - T2解調器
集成在單一個 IC,DVB - T2解調器,多流傳輸解復用器,CPU的A / V解碼器,視頻處理,圖形和顯示,先進的安全,機頂盒外設,音頻 /視頻 DAC,數字 A / V輸出,HDMI接口e - SATA端口,雙 USB端口,以太網 GMAC的控制器。
軟件完全兼容於 STi7105


【方塊圖】


【規格說明】


ST40-300, dual-issue, applications CPU, 32KI, 32KD caches. Nominal speed @450MHz delivering >800DMIPs (*)
 Includes a tightly coupled vector FPU to accelerate 3D graphics transformations.
 Single 16/32bits DDR1/DDR2 Local Memory Interface , up to 400MHz
 Latest generation “Delta” Video Decoder (RASTA) with ST231 programmable CPU core. 
 MPEG2, H264, VC-1/WMV9, HD or SD Advanced Video Decoding.
 Provides flexibility to support other codecs e.g. MPEG4 Pt2, DivX, XviD, H263 encode/decode, Flash (Sorenson, ON2/VP6), AVS-SD
 HD + SD decoding or Dual SD Decoding, PIP & Mosaic capable
 Real-time transcoding of MPEG2 SD to H264 SIF
 Advanced de-blocking and de-ringing of decoded MPEG2 SD sources based on ST’s DSE (Digital Source Enhancer) Technology with 2D Analysis window and Texture Adaptive Filter.
 ST231 CPU based Audio Decoder. MPEG1 I/II, MP3, Dolby Digital/DD+,  MPEG4 AAC/AAC+ multi-channel audio decoding. Concurrent audio description decoding. DD+ to DD and AAC+ to DTS transcoding.
(1) Extended mode targeted up to 600Mhz (to be confirmed after silicon characterisation)
 Main and Aux Video display pipelines,
 Main : high quality H & V reformatting/resizing with sample rate conversion/filtering. Motion adaptive spatial and temporal de-interlacing for 480p/576p and 1080p60 progressive output.
 Aux : high quality H & V reformatting/resizing with sample rate conversion/filtering
 3 independent graphics planes with H&V resize, CLUT and anti-flicker filtering
 Link list, graphics blitter. Supports rendering of 2D graphics and 3D user interface effects. Up to 200Mpixels/sec with destination alpha blending.
 Independent Main and Aux display compositions (Video/Graphics mixing)
 HD display capture & down-conversion for concurrent HD and SD output of the main composition
 HDMI 1.3a* interface with HDCP copy protection. (HD/ED/SD formats up to 1080p60, high bit rate audio).
 PAL/NTSC/SECAM Digital encoder.
 Six 10bits DACs for component/composite analog video output (HD/ED/SD formats up to 1080i)
 DACs available for HD+SD output or all can be used for SD output with concurrent HD over HDMI
 Digital Video Input port, 8 bits SD and 16bits HD YCbCr 4:2:2 formats supported.
 Integrated Stereo Audio DAC
 6 Channel Audio PCM Output Interface
 Stereo Audio PCM Input Interface
 Independent SPDIF output
 Two external TS I/O ports, Triple internal TS from memory
 Dual DVB-CI+ modules supported
 Multi-stream transport stream de-multiplexing, 400Mbits/sec,  Triple tuner DVR capable. 
 DVB/DES/TDES/AES/Multi-2/ICAM2.2 descrambling
 ATIS-IIF and DVB-CI+ descrambling
 Dual USB 2.0 Host interfaces including PHYs
 e-SATA HDD interface including PHY.
 Integrated Ethernet GMAC, Wake on LAN, multiple h/w address filters, Supports MII/RMII, Turbo MII up to 300MBits/sec.
 16bits External Memory and Peripheral Interface (EMI)
 Interfacing to and boot from Parallel NOR FLASH, NAND FLASH or Serial NOR FLASH
 32bits , 66MHz, PCI Interface, shared on EMI with access interleaving possible
 DVR supported with HDD attachment via e-SATA, EIDE (PIO mode) or USB.
 Time-shift supported without HDD attached using stream buffering in NAND Flash.
 Soft Modem support : integrated MAFE :integrated system side DAA. (Si-Labs)
 Dual Multi-channel Flexible DMA Controllers
 STB Peripherals
 2 x Smart Card, 4 x UARTs, 4 x SSC/I2C, GPIO banks with alternate functions, IR Tx/Rx, UHF Rx/SCD, PWM, ILC, HDMI CEC, 4x4 key matrix scanner.
 Advanced security - Secure control words, Code authentication, JTAG locking, Network/DVR copy protection, SVP, VGS,  DTCP-IP, MS-DRM, MSTV
 DVB-T2, DVB-T demodulators
 ETSI EN 302-755 (second generation Terrestrial)
 ETSI EN 300-744 (Terrestrial)
 FEATURES DVB-T2
 Fully compliant with DTG6.1 and targeting NorDig-T2 addendum to Nordig Unified Requirements Ver2.1
 Supports all DVB-T2 modes
 Fully-automatic acquisition
 Fully-automatic L1-signalling decoding
 Automatic guard-interval detection
 Automatically-calculated constant-rate TS output (using L1 signalling and ISSY)
 Frequency offset detection range up to +/-600kHz allows acquisition and performance optimisation via tuner frequency offset compensation
 Stream processor for automatic common- and data-PLP combination
 Null-packet insertion
FEATURES DVB-T
 Complies with all European standards for static and portable equipment including NorDig Unified 2.0, DTG 6.1, Ebook
 Smart Auto Acquisition controller with fast 2k/8k acquisition, low processor overhead and re acquisition mode
 Frequency offset detection range up to +/-600kHz allows acquisition and performance optimisation via tuner frequency offset compensation
 Automatic spectral inversion
 Enhanced in the following areas
 SFN perf. with pre/post-cursive echoes inside/outside guard
 Impulse noise cancellation algorithm compliant with DTG & Ebook
 ACI protection and performance with CCI
 Advanced channel corrector for low multipath loss and enhanced Doppler performance

 

【產品訊息】