Technical Specification
Reference Guide: TT128x High Definition Professional Receiver/Decoder
Page B-7
ST.RE.E10141.5
B.3.6
Supported Audio Bit-rates
Table B.5: Supported Audio Data Bit-rates (MPEG-2)
Mono kbit/s
Stereo kbit/s
Mono kbit/s
Stereo kbit/s
32 64 96 192
48 96 112 224
56 112 128 256
64 128 160 320
80 160 192 384
B.3.7 Digital
Audio
Outputs
Digital audio outputs comply with E1A-422
1
and have a maximum data
rate of 3.072 Mbit/s.
Digital audio is output on two 9-way, D-type connectors.
Audio output: balanced 2 – 7 volts.
B.4 Input
Specifications
B.4.1 QPSK
Satellite
Receivers
General
Table B.6: QPSK Satellite Receiver Input Specification
Parameter Specification
L-band input
Safety status
SELV
Number of inputs
2
Input connector type
F-type, female 75
Ω
Input impedance
75
Ω
Return loss
> 9 dB
Isolation between inputs
> 40 dB typical
Frequency
Tuning range
2
Fc = 950 to 2150 MHz
Tuning step
100 kHz
Carrier frequency search range
0 to
±
5 MHz
Receive spectrum sense
Normal and inverted
Power
Input power level per carrier
-65 to –25 dBm
Total L-band input power
< -10 dBm
Oscillator power at the L-band input
< -63 dBm, F = Fc and Fc/2
1
EIA-422-A-1978: Electrical characteristics of balanced voltage digital interface circuits.
2
The displayed frequency is either L-band or SHF dependent on the LNB frequency and the SHF carrier frequency set
in the satellite receiver input menu.
