Demodulator

A Demodulator (short: Demod) recovers (demodulates) the original information from the received and downconverted RF signal. In case of digital TV this is the MPEG2 Transport Stream, in case of analogue TV the Composite Signal.

Digital Demodulators also perform Forward Error Correction (Convolutional Viterbi- and Block-Reed-Solomon-Decoding).

Some Examples for Digital Demods are

Model	Type and Vendor
NXT6000	DVB-T/COFDM Demod produced by ATI
AT76C651	DVB-T/COFDM Demod produced by Atmel Corporation
CX22700	DVB-T/COFDM Demod produced by Conexant Systems, Inc.
CX24110	DVB-S/QPSK Demod produced by Conexant Systems, Inc.
DIB3000M	DVB-T/COFDM Demod produced by DiBcom
L64781	DVB-T/COFDM Demod produced by LSI Logic Corporation
L64782	DVB-T/COFDM Demod produced by LSI Logic Corporation
MT8872/SP8872	DVB-T/COFDM Demod produced by Microtune
TDA10021	DVB-C/QAM Demod produced by Philips Semiconductors
TDA10045	DVB-T/COFDM Demod produced by Philips Semiconductors
TDA10046	DVB-T/COFDM Demod produced by Philips Semiconductors
TDA8083	DVB-S/QPSK Demod produced by Philips Semiconductors
SP8870	DVB-T/COFDM Demod produced by Spase
STV0297	DVB-C/QAM Demod produced by ST Semiconductors
STV0299	DVB-S/QPSK Demod produced by ST Semiconductors
VES1893	DVB-S/QPSK Demod produced by VLSI Technology
VES1993	DVB-S/QPSK Demod produced by VLSI Technology
VES1820	DVB-C/QAM Demod produced by VLSI Technology
MT312	DVB-S/DSS/QPSK Demod produced by Zarlink Semiconductors
ZL10312	DVB-S/DSS/QPSK Demod produced by Zarlink Semiconductors
ZL10313	DVB-S/DSS/QPSK Demod produced by Zarlink Semiconductors