參數(shù)資料
型號: 935267395518
廠商: NXP SEMICONDUCTORS
元件分類: 顏色信號轉(zhuǎn)換
英文描述: COLOR SIGNAL DECODER, PBGA156
封裝: 15 X 15 MM, 1.15 MM HEIGHT, PLASTIC, MS-034, SOT-472-1, BGA-156
文件頁數(shù): 133/178頁
文件大小: 988K
代理商: 935267395518
2004 Jul 22
58
Philips Semiconductors
Product specication
Multistandard video decoder with adaptive
comb lter and component video input
SAA7118
Fig.35 Basic problem of interlaced vertical scaling (example: downscale 3
5).
MHB547
mismatched vertical line distances
scale dependent start offset
correct scale dependent position
unscaled input
scaled output,
no phase offset
scaled output,
with phase offset
eld 1
eld 2
eld 1
eld 2
eld 1
eld 2
handbook, full pagewidth
MHB548
eld 1
eld 2
upper
lower
eld 1
eld 2
case UP-UP
case LO-LO
eld 1
eld 2
case UP-LO
case LO-UP
A
B
C
D
Fig.36 Derivation of the phase related equations (example: interlace vertical scaling down to 3
5,
with field conversion).
Offset
1024
32
-------------
32
1 line shift
==
=
A
1
2
--- input line shift
16
==
B
1
2
--- input line shift
1
2
--- scale increment
+
YSCY[15:0]
64
-------------------------------
16
+
==
D = no offset = 0
C
1
2
--- scale increment
YSCY[15:0]
64
-------------------------------
==
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