Número de pieza
STI5516-DVB
componentes Descripción
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STI5516-DVB Hoja de datos - STMicroelectronics
STMicroelectronics
Description
The DTTi5516 is an integrated demodulator/ decoder solution for digital terrestrial receivers for compressed video, sound and data services. A COFDM (coded orthogonal frequency division multiplex) demodulator performs IF to MPEG-2 block processing of OFDM carriers. The demodulated stream is then processed by video and audio decoders using standard Omega technology.
Features
■ Enhanced ST20 32-bit VL-RISC CPU
● 180 MHz, 8 Kbyte instruction cache, 8 Kbyte data
cache and 8 Kbyte SRAM
■ Memory interfaces
● 121 MHz shared memory interface,16-bit wide
SDRAM interface, 64 and 128 Mbit support
● SRAM, SDRAM, SFlash support
■ Programmable transport interfaces (PTI)
● Integrated DES-ECB, DVB and ICAM descramblers
● Support for low cost DVB-CI interface
■ MPEG2 MP@ML video decoder
● Greater than 2x decoding speed
● Trick modes including smooth fast-forward and rewind
● Fully programmable horizontal and vertical SRCs
■ Graphics/display
● 5 display planes
● 2, 4 and 8 bpp CLUT graphics, 256 x 30 bits (AYCbCr)
CLUT entries
● RGB16 support
■ Audio subsystem
● MPEG-1 layers I/II decoding (MP3 option)
● Dolby® Digital 5.1 decoding downmixed to 2-channels
● Dolby Pro Logic® compatible output
● PCM mixing and sample rate conversion
● SRS/TruSurround® virtual surround sound
■ On-chip peripherals
● 5 ASCs (UARTs) with Tx and Rx FIFOs
● 6 x 8-bit banks of parallel I/O
● 2 smartcard interfaces and clock generators
● 2 SSCs for I²C master/slave interface
● 4 PWM channels
● Teletext serializer and DMA module
● Multi-channel infrared transmitter/receiver
● Modem analog front-end interface
● IEEE1284 interface
● Low-power / RTC / watchdog controller
■ DVB-T decoding and NorDig II compliant
● Single frequency network (SFN) compatible
● Adjacent channel interference canceller (ACI)
● Excellent static and dynamic (Doppler) performance
● Automatic guard interval and mode detection
● Accepts 6, 7 and 8 MHz channel bandwidths
● Lock indicators and general-purpose I/O pins
● Supports 2K, 8K modes
● Supports QPSK, 16, 64 QAM constellations
● 1/4, 1/8, 1/16, 1/32 guard intervals
● Supports hierarchical and non-hierarchical modes
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