參數(shù)資料
型號: SAA7186
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Digital video scaler
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: PLASTIC, SOT-317-2, QFP-100
文件頁數(shù): 11/44頁
文件大?。?/td> 223K
代理商: SAA7186
May 1993
11
Philips Semiconductors
Preliminary specification
Digital video scaler
SAA7186
shorter than XS, processing is aborted when the falling
edge of HREF is detected.
Vertical regions in Fig.4:
the two regions can be programmed via I
2
C-bus,
whereby regions should not overlap (active region
overrides the bypass region).
the start of a normal active picture depends on video
standard and has to be programmed to the correct
value.
the offsets XO and YO have to be set according to the
internal processing delays to ensure the complete
number of destination pixels and lines (Table 6).
the scaling parameters can be used to perform a
panning function over the video frame/field.
Fig.3 Horizontal and data multiplex timing.
handbook, full pagewidth
CREF
HREF
end of
active line
Byte number for pixels:
Y signal
U and V signal
n – 5
Vn-5
n – 4
Un-3
n – 3
Vn-3
n – 2
Un-1
n – 1
Vn-1
n
Un-5
MEH410
handbook, full pagewidth
LLC
CREF
HREF
start of
active line
0
U0
1
V0
2
U2
3
V2
4
U4
5
V4
6
U6
7
V6
Y signal
U and V signal
Byte numbers for pixles:
MEH411
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