®
DTTi5516
Single module demodulator and decoder IC
for digital video set-top boxes
DATA BRIEF
Description
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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.
The DTTi5516 provides a cost-effective solution
for a digital video set-top boxes using a 2-layer
PCBs and single device. It also has lower power
requirements than separate demodulator and
decoder ICs.
The DTTi5516 contains all of the most commonly
used descramblers, and thus allows a single platform
to be developed to cover the entire mainstream
set-top box market.
Integrated demodulator/decoder solution for digital terrestrial set-top box and TV receivers
SDRAM
(optional)
SDRAM
Flash
IR
Tx/Rx
Tuner
DTTi5516
RGB
CVBS/YC
VCR
RS232
March 2004
1/2
DTTi5516
Features
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Enhanced ST20 32-bit VL-RISC CPU
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On-chip peripherals
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180 MHz, 8 Kbyte instruction cache, 8 Kbyte data
cache and 8 Kbyte SRAM
121 MHz shared memory interface,16-bit wide
SDRAM interface, 64 and 128 Mbit support
SRAM, SDRAM, SFlash support
Integrated DES-ECB, DVB and ICAM descramblers
Support for low cost DVB-CI interface
Greater than 2x decoding speed
Trick modes including smooth fast-forward and rewind
Fully programmable horizontal and vertical SRCs
5 display planes
2, 4 and 8 bpp CLUT graphics, 256 x 30 bits (AYCbCr)
CLUT entries
RGB16 support
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
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Memory interfaces
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Programmable transport interfaces (PTI)
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MPEG2 MP@ML video decoder
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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
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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DVB-T decoding and NorDig II compliant
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Graphics/display
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Audio subsystem
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Ordering information
Salestype
STi5516-DVB
DTTi5516-Brick
DTTi5516xWC
Description
Reference software drivers
Development platform
IC reference
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without the express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners
© 2004 STMicroelectronics - All Rights Reserved
STMicroelectronics Group of Companies
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