Dvb Demodulation And Fault Correction - Loewe Q2500B Serviceanleitung

Technology of Q 2500 colour TV set
3.4.4 DVB demodulation and fault correc-
tion
Additional signal processing comprises:
- AD conversion of the quadrature sig-
nals from the tuner,
- QPSK demodulation and
channel decoding in the form of For-
ward Error Correction.
Document Q 2500
Demodulation and channel decoding are
compatible with ETS 300 421. In practice an
in-house chip solution is used for all three
functions. For reasons of interface compatibil-
ity with the MPEG decoder, the STV0299B
module from ST Microelectronics is used.
There then follows specification of the practi-
cal implementation, as well as parameters,
which in ETS 300421 are only partially set.
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