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CW-4142 QPSK DEMODULATOR
TV System
Input data
Input signal
Input level
IF bandwidth
Input impedance
Transmission characteristics
Modulation type
Symbol rate
FEC
LNB powering
LNB oscillator switching 0 / 22 kHz
Video decoding
Video rate
Aspect ratio
Maximum resolution
Audio system
Sampling frequencies 32, 44.1, 48 kHz
Teletext signals
Common Interface
Output data
Video output
Colour system
Output impedance
Output amplitude
DVB-S / MPEG2
950 to 2150 MHz
-65 to -25 dBm
36 MHz
75 Ω
QPSK SCPC / MCPC
3 to 30 Msps
DVB compatible
14 / 18 V
(short circuit protected)
MPEG2 MP@ML
1.5 to 15 Mbps
4 : 3 and 16 : 9
720 × 576
MPEG1
MUSICAM (layer1 / 2)
inserted into the vertical
blanking intervals
according to standard
ITU-R653-1 System B
acc. to EN 502221/1997
PAL / SECAM
75 Ω
1 Vpp
System clock
RF in
I`
I
QPSK
Sat
Demodulator and
ADC
Q`
Q
FEC Decoder
Tuner
AGC
LPF
Display &
Host
Control Unit
Processor
Control
Bus
CW-4142 QPSK DEMODULATOR
Technical data
Sound output
Nominal output level
Adjustable range
ASI output
Output data rate
Output level
General data
Mass
Physical dimensions
Width
Height
Depth
Service period
Power requirement
Power consumption
Operational temperature range
- to fulfil the specifications +10 ... +35
- to maintain operation
- relative humidity
Storage temperature range
- relative humidity
Data
Clock
Common
Demultiplexer &
MPEG-2 Decoder
Interface
Clock
Data
Clock
Data Clock
Audio
DAC
Clock
Data
LPF LPF
PCMCIA
L/R out CVBS out
Connector
7
approx. 0 dBm
scale number ~10,
depending on the
transmission
scale number 1 to 13
approx. -24...+10 dBm
0 (Muting)
ISO/IEC 13818-1
TM 1449 Rev.1
270 MBaud
typ. 800 mVpp
approx. 3.5 kg
19" × 1HU
483.0 mm
473.0 mm
continuous
230 V +10 ... -15 %
50 / 60 Hz
max. 50 VA
80 %
- 25 ... +45
95 %
non condensing
DRAM
Data
Clock
Data
PAL Encoder
ASI
& TXT
Interface
Inserter
LPF
ASI out
H-1519 Budapest, Pf. 418
Ltd.
E-mail: cableworld@cableworld.hu
Internet: www.cableworld.hu
43.6 mm
o
C
o
0 ... +40
C
o
C
Hungary
Tel.: ++36 1 204 7815
Fax: ++36 1 204 7839
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