HD49801FB Datasheet, PDF (17/43 Pages) List of Unclassifed Manufacturers – Digital Signal Processing IC for CCD Cameras

HD49801FB
HD49801FB
State Data A7: C clip level
This data varies the clip levels for the complementary color signals Wr, Wb, Gr, and Gb, and determines
the color reproduction.
HGI pin
For example: (Wrn Gbn Grn Wbn)
an bn cn dn an + 1 bn + 1 cn + 1 dn + 1
Sn
From
C filter 1 _Color
Limiter
the line
distri-
Out
delay
C filter 2 ^bution
Sn – 1 + Sn + 1
2
Address
data
A7 state
a level
b level
c level
d level
MPX
Clip
a
b
c
d
a
b
c
d
Data
Address
DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
40393837363534333231302928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1
a clip level
b clip level
c clip level
d clip level
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
0
1
1
0
• Setting the clip levels
— When saturation occurs within the ADC D range:
Let A be the level of a saturated pixel, and taking the white light signal levels to be Wa, Wb, Wc,
and Wd,
(clip level) = A × Wi/Wmax (Wmax = max {Wi}, i = a, b, c, d)
— When saturation occurs above the ADC D range:
White light signal levels to be Wa, Wb, Wc, and Wd,
(clip level) = 511/512 × Wi/Wmax (Wmax = max {Wi}, i = a, b, c, d)
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