Internal Decoder - TANDBERG TT1260 Reference Manual

B.4

Internal Decoder

The TT1260 contains an internal Decoder. A packet demultiplexer selects audio, video and
ancillary services from the stream received from the digital demodulator. A service filter
reduces the incoming data rate (max 160 Mbit/s) to that suitable for demuxing/decryption. The
Decoder supports decoding of compressed video at rates of up to and including
50 Mbit/s.
Table B.8: Maximum User Bitrates
Modulation
QPSK
QPSK
QPSK
QPSK
QPSK
8PSK
8PSK
8PSK
16QAM
16QAM
ASI
Reference Guide: TT1260 Contribution Receiver
ST.RE.E10100.3
FEC R188max (Mbit/s)
1/2 41.470588
2/3 55.294118
3/4 62.205882
5/6 69.117647
7/8 72.573529 (QPSK Receiver)
72.000000 (8PSK/16QAM Receiver)
2/3 82.941176
5/6 103.676471
8/9 110.000000
3/4 110.000000
7/8 110.000000
160
Technical Specification
Page B-9