AN-60 Datasheet, PDF (1/2 Pages) Fairchild Semiconductor – Application Note 60 (TMC22x5y input data ranges)

Application Note 60
TMC22x5y input data ranges
www.fairchildsemi.com
There is no fixed input data range to the TMC22x5y family
of digital decoders, as the programmable output matrix
allows up to 6dB of gain on the luminance and color differ-
ence signals. The following data ranges for 100% composite
and YC color bar inputs is for reference only.
Figure 1: Composite video waveform
Figure 2: YC video waveforms
Color
bar
white
Yellow
Cyan
Green
Magenta
Red
Blue
Pedestal
Blanking
Burst
sync tip
NTSC/M
Y
C
824
0
762 ± 242
663 ± 341
601 ± 319
507 ± 319
445 ± 341
345 ± 242
284
0
240
0
0
± 117
6
0
PAL/I
Y
C
828
0
763 ± 257
657 ± 362
592 ± 338
492 ± 338
426 ± 362
321 ± 257
n/a
n/a
256
0
0
± 122
10
0
Table 1: 10 bit composite input data ranges
Color
bar
white
Yellow
Cyan
Green
Magenta
Red
Blue
Pedestal
Blanking
Burst
sync tip
NTSC/M
Y
C
1008
0
933 ± 347
811 ± 488
735 ± 456
620 ± 456
545 ± 488
433 ± 347
348
0
294
0
0
± 167
8
0
PAL/I
Y
C
1008
0
928 ± 355
799 ± 499
719 ± 467
597 ± 467
517 ± 499
388 ± 355
n/a
n/a
308
0
0
± 170
8
0
Table 2: 10 bit YC input data ranges