Hirschmann IRD 8500, Руководство по эксплуатации

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Input 1. SAT-IF input “SAT IF e ”:
Impedance : 75 ohm
Frequency range : 950 ... 2150 MHz
Level : -65 ... -25 dBm
Tuning increment : 0.1 MHz
AFC captur range :
±
8 MHz
Return loss : ≥ 8 dB (typ.: ≥ 12 dB)
Oscillator inteference level :
≤
-63 dBm
Frequency 2.SAT-IF : 479.5 MHZ
IF-bandwidth : 55 MHz
Demodulation : I/Q or I/-Q
Direction of rotation : automatically detected
Spectral sharping : cos roll off 35%
Output-symbol rate : 4 ... 45 MSymb/s
Smallest adjustment step : 0.1 kSymb/s
Decoding : acc. to DVB standard ETS 300421
Remote supply LNB
vertical : 12,5 ... 14,0 V / max. 310 mA
horicontal : 17,2 ... 18,8 V / max. 310 mA
22 kHz control signal : f = 20 ... 24 kHz; Zi = 15 Ohm;
Upp= 500 ... 800 mV
Synchronous Parallel Interface input “SPI e ” (Low Voltage Differential Signal)
Datarate : 2 ... 64 Mbit/s
Clock frequency : 250 kHz ... 8 MHz
Frame length : 188 or 204 Bytes
Level : 100 mVpp ... 2.0 Vpp
Impedance : 90 ... 132 Ohm
Clock phase : rising edge in the center of the data bit
Outputs Video output 2 x “VIDEO a ”:
TV standard : PAL, NTSC,
SECAM corr. ITU-R BT624
Output signal : CVBS
Output level : 1 Vss
±
5 mV
Impedance : 75 ohm
Return loss :
≥
34 dB (0 - 5 MHz)
Video bandwidth : DC ... 5 MHz
Video amplitude response :
≤ ±
0.5 dB
Clamping : 0 V
±
30 mV
Differential phase : < 1.5
o
Differential amplitude : < 1.5%
S/N (rated, slope) :
≥
56 dB
Y - C delay :
≤
25 ns
Hum suppression
(reference 1Vpp)
:
≥
60 dB
Base line distortion
(20T-Impulse)
: < 2%
Appendix
IRD 8500/..
Intergrated Receiver Decoder 6 - 3