參數(shù)資料
型號(hào)： SAA4998H
廠商： NXP Semiconductors N.V.
英文描述： Field and line rate converter with noise reduction and embedded memory
中文描述： 場(chǎng)和符合降噪和嵌入式存儲(chǔ)器率轉(zhuǎn)換器
文件頁(yè)數(shù)： 13/39頁(yè)
文件大小： 175K
代理商： SAA4998H
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P
P
F
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Peak_Vcomp
VecComp
016
write; S
X X X set degree of horizontal vector compensation in Y DNR:
(
0,
1
8
,
2
8
,
3
8
,
4
8
,
5
8
,
6
8
or
7
8
) of the vector
noise shaping enable; this bit is set to logic 1 after reset or power-up
set vertical peaking level: (
0, +2, +3.5, +5, +6, x, x, x, x, x, x, x, x,
12,
6 or
2.5
) dB
NoiseShape
PeakCoef
X
X X X X
DNR_Colour_mode
ColourIn
017
write; S
X X select colour input format: (
4 : 1 : 1, 4 : 2 : 2, 4 : 2 : 2 DPCM or
4 : 2 : 2
)
select colour output format: (
4 : 1 : 1 or 4 : 2 : 2
)
set number of field memories used for motion compensation: (
1 or 2
)
select vector overlay on colour output: (
vector overlay or colour
from video path
)
slave UV noise reduction to K factor of Y: (
separate or slaved
)
select split screen mode for DNR: (
normal or split screen
)
switch DNR high-pass on (DNR only active on low frequent spectrum:
(
all through DNR or high bypassed
)
ColourOut
NrofFMs
ColOvl
X
X
X
SlaveUVtoY
DnrSplit
DnrHpon
X
X
X
Vertical zoom
Zoom1
ZoomSt98
018
write; F
X X zoom line step bits 9 and 8; line step = vertical distance between
successive output lines; usable range = 0 to 2 frame lines;
resolution
1
256
frame line
zoom start position bits 9 and 8; start position = vertical position of the
top display line; usable range = 1 to 3 frame lines; resolution
1
256
frame line
ZoomPo98
X X
Zoom2
ZoomSt70
Zoom3
ZoomPo70
019
write; F
X X X X X X X X zoom line step bits 7 to 0 (see above)
01A
write; F
X X X X X X X X zoom start position bits 7 to 0 (see above)
NAME
SNERT
ADDRESS
(HEX)
READ/
WRITE
(1)
7
6
5
4
3
2
1
0
DESCRIPTION
(2)
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