參數(shù)資料
型號： SAA7140A
廠商： NXP SEMICONDUCTORS
元件分類： 消費家電
英文描述： High Performance Scaler HPS
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP128
文件頁數(shù)： 28/68頁
文件大?。?/td> 432K
代理商： SAA7140A
1996 Sep 04
28
Philips Semiconductors
Objective specification
High Performance Scaler (HPS)
SAA7140A; SAA7140B
1
12
to
1
13
(939)
11
1111 11 1 11 1111
1111 21 2 12 1111
1121 11 2 11 1211
1111 111 111 1111
1111 211 112 1111
1111 112 211 1111
1111 111 1 111 1111
1111 111 2 111 1111
1111 1111 1111 1111
7F
2F
3B
7F
6F
3F
FF
7F
FF
00
50
44
00
10
40
00
80
00
13
16
16
14
16
16
15
16
16
2
3
3
2
3
3
2
3
3
8
13
1
1
8
14
1
1
8
15
1
1
1
13
to
1
14
(946)
12
1
14
to
1
15
(951)
13
1
15
to
1
16
(956)
1
16
to
1
17
(960)
14
15
1111 1111 1 1111 1111
1111 1111 1 1 1111 1111
2212 2212 2 2 2122 2122
1222 2222 1 1 2222 2221
....
1111 2222 1111
1111 2222 1111
1121 1212 1121
1211 2121 1211
FF
02
FF
44
01
....
0F
00
FD
00
BB
FE
....
F0
17
32
18
32
32
....
32
3
4
3
4
4
....
4
16
17
1
16
18
1
1
....
1
1
17
to
1
18
(964)
16
....
....
22
1
23
to
1
24
(980)
AD
52
32
4
1
VERTICAL
SCALE RATIO
(YSCI 3
≥
)
YACL
COEFFICIENT SEQUENCE
(example)
CYA
(HEX)
CYB
(HEX)
WEIGHT
SUM
DCGY
BCS
(CONT/SAT)
= x/y
×
64
7.4.2.2
LPI mode (scaling factor range 1 to
1
2
; IC-bus
bit YACM = 0)
To preserve the signal quality for slight vertical
downscales (scaling factors 1 to
1
2
) linear phase
interpolation between consecutive lines is implemented to
generate geometrically correct vertical output
lines.Therefore, the new geometric position between
lines N and N + 1 can be calculated.
A new output line is calculated by weighting the samples
‘p’ (pixel) of lines N and N + 1 with the normalized distance
to the new calculated position (see Fig.16);
When N
OL
= number of output lines and N
IL
= number of
input lines the I
2
C-bus bits YSCI (scaling increment) and
YP (scaling start phase) have to be set according to the
following equations;
Fig.16 New output line calculation.
where A = 0 to 63/64
p M
)
A
p N
1
+
)
1
A
–
(
)
p N
×
+
×
=
handbook, halfpage
MHA361
input lines
new calculated position
of output line M
N
distance = 1
N
+
1
A
A
1
M
相關(guān)PDF資料
PDF描述
SAA7140B High Performance Scaler HPS
SAA7146AHZ Circular Connector; No. of Contacts:66; Series:MS27472; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:18; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:18-35 RoHS Compliant: No
SAA7146AH .012UF/400VDC METAL POLY CAP
SAA7146A Multimedia bridge, high performance Scaler and PCI circuit SPCI
SAA7151 Digital multistandard colour decoder with SCART interface DMSD2-SCART
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7140B 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:High Performance Scaler HPS
SAA7144HL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Quadruple video input processor
SAA7145 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:PCI Multimedia Bridge
SAA7146 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
SAA7146A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multimedia bridge, high performance Scaler and PCI circuit SPCI
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