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| 3URGXFW %ULHI 64& 7HUUHVWULDO 5HFHLYHU IRU '9%7 The SQC 6100 is a Digital Terrestrial Receiver Device which is fully compliant with the standard DVB-T (ETSI 300 744) standard for terrestrial transmission systems. The SQC 6100 integrates all analog and digital data processing functions from the second intermediate frequency input to the transport stream output. 64& s Minimum external components Applications s Digital terrestrial TV sets s Digital terrestrial STB's s Portable and mobile terrestrial Features s Fully compliant to DVB-T and s s s receivers System Integration s Second intermediate frequency s s s s s s s s s s s s input DVB-compliant transport stream output Single free running oscillator (nominal 28.9 MHz) Four general purpose I/O's, including two PDMs IC-bus interface Two interrupt (IRQ) pins 3.3V power supply TTL compatible I/O's P-MQFP-100 package ETSI 300 744 2k/8k-COFDM 6, 7, 8 MHz channels All code rates according to DVB-T All modulation schemes according to DVB-T All guard interval lengths according to DVB-T BER measurements On-chip FEC Technology s Internal anti-alias filter s On-chip AGC s On-chip ADC for 2K/8K COFDM s Digital demodulation and chan- nel decoding s Entirely digital synchronisation on chip s Based on Infineon mixed-signal technology and embedded DRAM technology s P-MQFP-100 package Benefits s Fast acquisition and tracking s s s s modes Low implementation losses Pre-echo tolerant Time varying channel tolerant Small outline http://www.infineon.com TPS Channel Estimation 2nd IF Input Interference Detection I/Q conversion Resampling Equalizer + Soft Bit Gen. Symbol/ Bit DeInterleaver TS Output FEC AAF AGC ADC FFT Carrier/Sampling Frequency and Timing Synchronisation Clock, Reset IC 4 GPIOs incl. 2 PDMs )LJXUHHPI Processing Internals of the Single-Chip Terrestrial Receiver SQC 6100 A second intermediate frequency of 7.225 MHz typical is fed into the SQC 6100 Single-Chip Terrestrial Receiver. Unwanted spectral components are suppressed by the internal anti-alias filter. The AGC ensures optimal use of the analog-to-digital converter. The I/O conversion mixes the signal to the baseband. A resampling unit fits the baseband signal to the sampling rate of the FFT. Coarse estimation for positioning the guard interval is provided to align the FFT window. Pilot carriers are used to fine tune the FFT. The TPS unit retrieves the parameters for demodulation. Channel estimation is used to interpolate in time and frequency dimensions. The interference detection unit uses scattered pilots in parallel to detect co-channel interference such as caused by analog TV. This unit corrects the data carriers and produces 4-bit wide soft bits. Symbol and bit de-interleaver feeds the datastream into the FEC. The datastream is accessible via transport stream output in serial and parallel modes. The entirely digital clock and timing concept are based on a free running oscillator. The status of the SQC 6100 can be monitored via the IC-bus. Four general purpose I/O's are provided, including two pulse density modulators. Availability The SQC 6100 device is available with complete documentation. Please contact your local Infineon Technologies office for further details. A Xvr HK &&"$%A CtAFt A#"A AUS WvpA" ! A'$!A!'"!A$A I Hvyh SvpuqAHryir A"(A!%%&% A A% B A"(#!A& IND IrA9ryuvA A # 7ry7ryyr A( IRL A #% A&#A#& A"!A!$"%A!"A#' BR TmAQhyTQ 9iyvA# A"$"A J %"A!"A#! A$$A !%A'# '"%A!"A&& UxA # !! A' N PyA$ Q!A A"$##(A%#A CDN HvvhthA PhvAG$UA A CH A#&A!!%"A"A NL 9rAChht A($' (A'A avpu A# D A" A #($A"A%$A A&"""A!#A!( P 9ryqs 6hqh A#(A! #(A$ A"$A "((A $A$ A # &AA GhhrAChr '&&A!&A% PL Xhhh A#'A!%&A( RC Uhvrv A$ Hpur #(A'((!! Iirt A#A'% A''%A!!&&"A%%A% ROK TryA "$' #(A( %$#A&%A!! A'!A!$!&A&&A RUS Hxh Tth #(A& DK 7hyyr "&A""A # A&A($!"&%#A&% %(A A#$A##&&##A&& E UrA8hHhqvqA S Fvh A"#A( F A#%A'&"A"$A SGP TvthrA"#(A!$" $ #A'AA Thv9rvA8@9@YA!A A""A FIN A%$A'#A%A TR #(!!A" A AvqvxyvADhiy @ACryvxv A"$A($ GB A(A! USA !!$ A(A $A A !A'Aa 8rvA86A($ # 7rxuvrASBA A##A GR A ZA A#'&&&A#$AA %'$ "##"(A%AA ChyshACrA 6hv6ur 64& $SSOLFDWLRQ ([DPSOH 7HUUHVWULDO 7XQHU Antenna Tuner TUA 60xx SAW X6966 Mixer TDA 6190 Demodulator SQC6100 Figure2.emf A"A A!&A !&A %$!!A %'%A# A How to reach us: http://www.infineon.com (c) Infineon Technologies AG i. Gr. 1999. All Rights Reserved. Please note that any information contained in this publication may be subject to change. Infineon Technologies reserves the right to make changes to or to discontinue any product or service identified in this publication without notice. Please contact our regional offices to receive the latest version of the relevant information to verify, before placing orders, that the information being relied upon is current. All brand or product names, hardware or software names are trademarks of their respective companies or organizations. Transport Stream An antenna receives the digital terrestrial signal. The tuner selects, filters, and mixes the carrier (program) down to a first IF of 36.125 MHz typical. Adjacent channels are suppressed by SAW-filters. A second mixer shifts the spectrum to the second IF. The SQC6100 provides analog filtering and digital processing of the channel information. Output is the transport stream. Published by Infineon Technologies AG i. Gr. 1999-06-21 Printed in Germany |
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