SAA7146AH/V4,557 NXP Semiconductors, SAA7146AH/V4,557 Datasheet - Page 85
SAA7146AH/V4,557
Manufacturer Part Number
SAA7146AH/V4,557
Description
IC VIDEO SPCI BRIDGE HP 160-QFP
Manufacturer
NXP Semiconductors
Type
Video Bridger
Datasheet
1.SAA7146AHV4557.pdf
(139 pages)
Specifications of SAA7146AH/V4,557
Package / Case
160-QFP
Applications
DTV
Mounting Type
Surface Mount
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
568-1318
935269343557
SAA7146AHBB
935269343557
SAA7146AHBB
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SAA7146AH/V4,557
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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Philips Semiconductors
Table 73 HPS, vertical scale and gain
Table 74 Prefilter selection for luminance component Y
2004 Aug 25
64
X
X
X
0
0
1
1
OFFSET
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
(HEX)
PFY1
PFY
PFUV
DCGY
CYA
CYB
X
X
X
0
1
0
1
NAME
PFY0
31 to 28
27 to 24
23 to 19
18 to 16
15 to 8
7 to 0
0
0
1
1
1
1
1
BIT
PFY1
RW
RW
RW
RW
RW
TYPE
0
1
0
1
1
1
1
PFY0
prefilter selection for luminance component Y:
prefilter selection for colour difference signals UV:
reserved
DC gain control of Y scaler:
Dependent on active coefficients and the sequence length, the
amplitude gain has to be renormalized.
Gain factor = 2 (DCGY + 1); see Table 76. The resulting factor is a
function of CYi and DCGY. The resulting weight factor = 0 for
CYAi = CYBi = 0 or CYAi = CYBi = 1 or DCGY >5 otherwise
weight = weighting factor/gain factor; see Table 77.
Coefficient select for Y (vertical) processing in accumulation mode.
For improvement of vertical filtering the accumulated lines can be
weighted. Weighting factor = 2(2
H(z) = H1(z)
H1, H3 = 1 + z
H2 = 1 + A
see Table 74
H(z) = H1(z)
H1 = 1 + z
H2 = 1 + A
H3 = 1 + z
see Table 75
85
bypass
active
active
active
active
active
active
1
2
H1
z
z
H2(z)
H2(z)
1
1
1
+ z
+ z
2
2
bypass
bypass
bypass
active
bypass
bypass
active
H3(z)
H3(z)
DESCRIPTION
H2
CYBi + CYAi
bypass
bypass
active
active
bypass
active
active
H3
Product specification
SAA7146A
1); see Table 78.
X
X
X
2
15
7
3
8
4
16
A
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