SAA7115HL/V1,518 NXP Semiconductors, SAA7115HL/V1,518 Datasheet - Page 101
![IC DIGITAL VIDEO DECODER 100LQFP](/photos/6/65/66516/568-100-lqfp_sot407-1_sml.jpg)
SAA7115HL/V1,518
Manufacturer Part Number
SAA7115HL/V1,518
Description
IC DIGITAL VIDEO DECODER 100LQFP
Manufacturer
NXP Semiconductors
Type
Video Decoderr
Specifications of SAA7115HL/V1,518
Package / Case
100-LQFP
Applications
Set-Top Boxes
Mounting Type
Surface Mount
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply, Analog
-
Voltage - Supply, Digital
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
935270666518
SAA7115HLBE-T
SAA7115HLBE-T
SAA7115HLBE-T
SAA7115HLBE-T
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SAA7115HL/V1,518
Manufacturer:
Sigma Designs Inc
Quantity:
10 000
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Philips Semiconductors
Figure 6-6. Chrominance re-sampling to achieve interspersed sampling.
Figure 6-7. Filtering at the edge of the active area.
Figure 6-8. Format of CCIR656 SAV and EAV timing reference codes.
Figure 6-9. VI capture parameters.
VI_CTL.SC=1: ‘Interspersed sampling’ serves to gen-
erate a sampling structure in memory where chromi-
nance samples are spatially midway between luminance
samples, as shown in
mat is suitable for use in MPEG-1 encoding.
The VI hardware applies a (–1 13 5 –1)/16 filter as illus-
trated in
writing them to memory. This filter computes chromi-
nance values at sample points midway between lumi-
nance samples
Figure 6-6
1
1 1 1 1 1 1 1 1
. Computed video data is clamped to
d
to the chrominance samples before
c
Figure
YUV 4:2:2 CCIR656
b
Resampled sample
a
input samples
6-6. This ‘interspersed’ for-
b
c
values
d
0 0 0 0 0 0 0 0
Timing reference code
Pixel 0
START_X
e
a
a
f
Preamble
b
b
g
c
c
h
START_Y
Captured Image
d
d
i
e
e
WIDTH
Active area
j
f
f
• • •
0 0 0 0 0 0 0 0
g
g
V = 1 during field blanking
01h if the filter result is less than 01h and clamped to FFh
if greater than FFh. Interspersed data format is preferred
by some video compression standards. The MPEG-1
standard, for example, requires YUV 4:2:0 data with
chrominance sampling positions horizontally and verti-
cally midway between luminance samples. This can be
achieved from the horizontally interspersed sampling for-
PRELIMINARY SPECIFICATION
1.
h
h
F = 0 during field 1
F = 1 during field 2
Pixel M–1
zs zt
i
i
All filters perform full precision intermediate computa-
tions and saturation upon generating the result bits.
V = 0 elsewhere
j
j
Line 0
Line N–1
zu zv zw zx zy zz zy zx zw
Y
V
U
g
k
k
ef
ef
'
=
=
=
Y
l
l
(
(
g
–
–
U
V
c
c
+
+
1 F V H P P P P
13U
13V
e
e
+
+
5U
5V
g
g
–
–
U
V
i
i
) 16
H = 0 for SAV
H = 1 for EAV
) 16
⁄
⁄
Protection bits
(error correction)
Video In
6-5
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