THOMSON DD10, Руководство по установке

Страница: 34 / 179

2. Technical Data Diamond digital
25
2.3 PRODUCTION SWITCHER DIAMOND DIGITAL DD20
2.3.1 INPUTS
– 32 video signals
and/or key signals BNC, serial component CCIR 656
– Input level 0.8 Vpp
±
10%, 75 ohms,
DC 0
±
0.5 V
– Quantization 10 bits
– Common mode noise 2.5 Vpp DC - 1 kHz
– Return loss 5 - 270 Mbits > 10 db
– Autophasing range 32
m
s
– Asynchronous signals switchable
– Reference signal 2 BNC, 0.3 V sync, blackburst or CCVS
75 ohms, DC 0
±
0.1 V,
can be looped through
– Return loss reference up to 7 MHz > 30 db
2.3.2 OUTPUTS
– 4 program video signals BNC, serial component CCIR 656
– 3 program video signals per ME BNC, serial component CCIR 656
– 1 clean video signal BNC, serial component CCIR 656
– 1 preset video signal BNC, serial component CCIR 656
– 1 preview video signal per ME BNC, serial component CCIR 656
– 3 - 5 auxiliary buses BNC, serial component CCIR 656
– 1 - 2 DVE video BNC, serial component CCIR 656
– 1 - 2 DVE key BNC, serial component CCIR 656
– Output level 0.8 Vpp
±
10%, 75 ohms, DC 0
±
0.5 V
– Quantization 10 bits or 8 bits rounded, switchable
– Return loss 5 - 270 Mbits > 10 db
2.3.3 VIDEO SYSTEM DATA
– Standards, interlaced 525/60 or 625/50, switchable
– Data rate 270 Mbits/s
– Aspect ratio 4:3 or 16:9 (270 Mbits/s), switchable
– Signal processing video 4:2:2 in conformity with CCIR 601
– Sampling frequency lum. 13.5 MHz
– Sampling frequency chrom. 6.75 MHz
– Quantization video 10 bits
– Overall delay input/
program output < 1 line
– Blanking horizontal transparent for background signal
– Blanking vertical transparent for background signal
except for lines 6 and 319 (625L/50 Hz)
or 10 and 273 (525L/60 Hz)