7. QAM DEMODULATOR – STV0297E
7.1. General Desription
The STV0297E is a complete single-chip QAM (quadrature amplitude modulation)
demodulation and FEC (forward error correction) solution that performs sampled IF to
transport stream (MPEG-2 or MPEG-4) block processing of QAM signals. It is intended
for the digital transmission of compressed television, sound, and data services over
cable. It is fully compliant with ITU-T J83 Annexes A/C or DVB-C specification
bitstreams (ETS 300 429, “Digital broadcasting systems for television, sound and data
services – Framing structure, channel coding and modulation - Cable Systems”). It can
handle square (16, 64, 256-QAM) and non-square (32, 128-QAM) constellations.
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