Technical Specification
Instruction Manual: Professional Receivers and Decoders (IRD)
Page B-3
ST.TM.TT1220.1
B.1
General
The TT1220 is a 1RU single channel MPEG-2 decoder, designed to decode
DVB compliant MP@ML MPEG-2 transport streams.
B.2
Key Features
•
QPSK or ASI input
•
NDS or DVB-CI CA
•
MP@ML Decoding up to 15 Mbit/s
•
Remote controllable via RS-232
•
Optional descrambled ASI output
•
Optional additional audio
•
Supports NDS Director remote control
B.3
Technical Details, TS input
B.3.1
Satellite QPSK Input
Table B.1: QPSK Input
Parameter
Performance
Connector type:
F-type (female)
Impedance:
75
Ω
Symbol range:
1 – 44.5 Msymb/s
Max transport stream rate:
60 Mbit/s
FEC rate:
1
/
2
,
2
/
3
,
3
/
4
,
5
/
6
,
7
/
8
Frequency range:
950 – 2150 MHz
Tuning steps:
100 kHz
Input level:
-65 dBm to –25 dBm, for SymbolR. > 20Msymbols/sec
-65 dBm to (–35 Rate [Msybols/sec] – 10) dBm, for 10
Msymbols/sec < SymbolR. < 20Msymbols/sec
-65 dBm to –35 dBm, for SymbolR. < 10Msymbols/sec
Return loss:
>8 dB at i/p
LNB power feed V:
0V, 13.5V, 18V
LNB power feed I:
max 450 mA
LNB power supply tolerance:
+/- 5%
LNB 22 kHz:
On / Off selectable
LNB 22 kHz frequency tolerance:
+/- 2 kHz
LNB 22 kHz amplitude:
650 mV +/- 250 mV
Spectral inversion:
On / Off selectable
Содержание TT1220 Series
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