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STI5267-GUD-STI5267-UUD
Advanced SD STB decoder with integrated DVB-T/DVB-C demodulator
Data briefJanuary 2010 Doc ID 16950 Rev 1 1/9
STi5267Advanced SD STB decoder
with integrated DVB-T/DVB-C demodulator
Features Combined DVB-T/-C receiver Compatible with low to high IF tuners DVB-T demodulation DVB-C demodulation DVB-CI compliant output I²C serial bus interface Advanced standard-definition video decoding
(H264/VC-1/MPEG2/AVS) Advanced multi-channel audio decoding
(MPEG 1, 2, MP 3, DD/DD+, AAC/AAC+, and
WMA9/WMA9pro) Linux, Windows CE, and OS21 compatible
ST40 applications CPU (450 MHz) 16-bit DDR1/DDR2 compatible local memory
interface Multi-stream, DVR capable transport stream
processing Extensive connectivity (dual USB 2.0 hosts,
e-SATA (optional), Ethernet MAC/MII/RMII,
and PCI) Advanced security and DRM support including
SVP, MS-DRM, and DTCP-IP
DescriptionThe STi5267 uses state-of-the-art process
technology to provide a fully featured SD AVC,
DVB-C, and DVB-T demodulator/decoder IC.
It is a highly integrated system-on-chip, suitable
for STB markets across cable, terrestrial, and
terrestrial/IP hybrid networks worldwide.
Introduction STi52672/9 Doc ID 16950 Rev 1
1 IntroductionThe STi5267 is targeted at the latest Operator and CE manufacturer requirements for STBs
that use advanced SD decoding (H264/VC-1/MPEG2), and which conform to DVB, ISMA,
ATIS-IIF, SCTE, ATSC, ARIB, CEA, ITU, OpenCable and MSTV specifications.
The STi5267 provides a solution for operators to specify a range of low-cost, high
performance SD STBs including low-cost zappers, IP clients, interactive STBs, DVR
standalone and DVR server/home network-capable STBs, and with content delivery
possible using broadcast or broadband networks, or both (hybrid STBs). The STi5267 keeps
pace with the latest conditional access, DRM and trusted platform requirements of major
operators worldwide by incorporating the latest generation of advanced security features.
The STi5267 offers current users of ST’s growing family of advanced decoding ICs
enhancements in performance and features, while reducing cost and time-to-market for the
next generation deployments.
Combines a configurable DVB-C/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 either DVB-C or
DVB-T networks
ST40-300 applications CPU @450MHz,
32K I cache, 32K D cache
Up to 800DMIPs superscalar performance from a
single CPU core, using standard tools and
operating systems (Linux, OS21)
STMicroelectronics' DELTA 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, optional 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
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
STi5267 IntroductionDoc ID 16950 Rev 1 3/9
1.1 STi5267 features summaryThe STi5267 has the following main features:
1.1.1 COFDM demodulation General features: Compatible with low to high IF tuners Wide-range carrier tracking loop for large offsets recovery Dual ADC for IQ baseband interface ADC for RF signal strength indicator Dual SD digital split AGC for RF and IF/BB gain control Flexible clock management uses external reference from 4 to 30 MHz Channel impairments management: Nordig Unified (v2.0) compliant DTG 5.0 and Digitenne compliant Outstanding performance in various channel configurations: dynamic fading,
urban environment Built-in channel reception quality indicators Out-of-guard interval echoes compatible Impulsive noise rejection capable Outstanding adjacent and co-channel rejection capability with integrated and
flexible digital channel filtering High-performance digital carrier, timing and symbol recovery loops Decoding capabilities: ETSI EN-300744 v1.5.1 compatible 2-K and 8-K FFT length 6, 7 and 8 MHz channel bandwidths 1/4, 1/8, 1/16, 1/32 guard-interval length QPSK - 16QAM - 64QAM modulations Hierarchical modulation capability TPS decoding Puncture rates are 1/2, 2/3, 3/4, 5/6, 7/8 Outer Reed-Solomon decoder as per DVB-T standard Energy dispersal descrambler
Introduction STi52674/9 Doc ID 16950 Rev 1
1.1.2 QAM demodulation Decodes ITU-T J.83-Annexes A/C and DVB-C bit streams High-performance integrated ADC for direct IF architecture in all QAM modes Supports 16, 32, 64, 128 and 256 point constellations Variable symbol rates Front derotator for better low symbol rate performance and relaxed tuner constraints Integrated matched filtering Robust integrated adaptive pre- and post- high multi-tap equalizer On-chip FEC A/C with ability to bypass individual blocks Built-in clock management for operation from a flexible 4 MHz to 30 MHz external
reference Fast signal acquisition ADC for RF signal strength indicator
1.1.3 Interfaces I²C serial bus interface: Fast, up to 400 kHz slave interface Four possible slave addresses Flexible and DVB-CI compliant TS output
1.1.4 Processor coreThe STi5267 integrates a 450 MHz ST40-300 processor core that features a 32-bit
superscalar RISC CPU and IEEE-754 compliant floating point unit (FPU). The ST40-300
includes two-way, set-associative caches and an interrupt controller with 15 user interrupt
sources and an interrupt expansion port.
1.1.5 External memory interface (EMI)The EMI is a general-purpose interface for attaching Flash memory and peripherals. The
EMI features are: Five banks Addressing up to at least 64 Mbytes of NOR Flash External bus master support through BUSREQ/BUSGNT signals Slave Mode EMI support Single level cell (SLC) NAND Flash and boot from SLC NAND Flash Serial Flash support PCI interface, host and device selected on boot ATAPI PIO mode 4 DVB-CI+
1.1.6 Local memory interface (LMI)The STi5267 integrates one 16-bit DDR2-DDR1 interface. The interface can run up to
400 MHz when configured in DDR2 mode or up to 250 MHz when in DDR1 mode.
STi5267 Target applicationsDoc ID 16950 Rev 1 5/9
The LMI supports 16-bit configurations, including: 1 × 512 Mbits (×16) devices resulting in 64 Mbytes memory space 1 × 1 Gbits (×16) devices resulting in 128 Mbytes memory space 1 × 2 Gbits (×16) devices resulting in 256 Mbytes memory space
2 Target applications
2.1 Terrestrial STB
Figure 1. Typical terrestrial STB
Target applications STi52676/9 Doc ID 16950 Rev 1
2.2 Hybrid IP/terrestrial STB
Figure 2. Typical hybrid IP/terrestrial STB
