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IMAGE SENSOR SOLUTIONS
Functional Description (continued)
4.2 4:2 Sub-Sampling
The timing and control circuit can be programmed to sub-sam-
4.0
SUB-SAMPLING MODES
ple pixels in the display window vertically, horizontally or both,
with an aspect ratio of 4:2 as illustrated in figure 19
4.1 2:1 Sub-Sampling
The timing and control circuit can be programmed to sub-sam-
ple pixels in the display window vertically, horizontally or both,
with an aspect ratio of 2:1 as illustrated in figure 18.
0
1
Column/Horizontal
a b c d e f g h i j k l m n o p q r
0
1
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Column/Horizontal
a b c d e f g h i j k l m n o p q r
a) Horizontal Sub-Sampling
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0
1
a) Horizontal Sub-sampling
Column/Horizontal
a b c d e f g h i j k l m n o p q r
0
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Column/Horizontal
a b c d e f g h i j k l m n o p q r
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a
b) Vertical Sub-sampling
Column/Horizontal
b c d e f g h i j k l mn o p q r
9
b) Vertical Sub-Sampling
Column/Horizontal
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a b c d e f g h i j k l
l n o p q r
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c) Horizontal & Vertical Sub-sampling
Green Pixel
Red Pixel
Blue Pixel
Not Read Out
9
c) Horizontal & Vertical Sub-Sampling
Figure 19. 4:2 Horizontal and Vertical Sub-Sampling
Notes:
Green Pixel Red Pixel Blue Pixel
Not Read Out
Figure 18. 2:1 Horizontal and Vertical Sub-Sampling
Note a:
Note b:
To program the sensor in 4:2 Sub-sampling the HSub-
SamEn bit in the MCFG1 register should to be set to a
logic zero.
Setting the HSubSamEn bit in the MCFG1 to a logic
Notes:
Note a:
Note b:
Note c:
To program the sensor in 2:1 Sub-sampling the HSub-
SamEn bit in the MCFG1 register should to be set to a
logic one.
Setting the HSubSamEn bit in the MCFG1 to a logic
one will switch on the horizontal sub-sampling, while
setting the VSubSamEn bit in the MCFG1 register will
switch on the vertical sub-sampling.
Sub-sampling cannot be used with interlace readout
Note c:
Note d:
one will switch on the horizontal sub-sampling, while
setting the VSubSamEn bit in the MCFG1 register will
switch on the vertical sub-sampling.
Sub-sampling cannot be used with interlace readout
mode.
When using horizontal sub-sampling Pclk is divided
by 2. The active time of Hsync is the same in sub-
sampled and non sub-sampled mode. Horizontal
sub-sampling does not increase frame rate.
mode.
Note d:
When using horizontal sub-sampling Pclk is divided
by 2. The active time of Hsync is the same in sub-
sampled and non sub-sampled mode. Horizontal
sub-sampling does not increase frame rate.
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KB-A100SRW
LIGHT BAR 660NM RED 8.89X3.81MM
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KB-G100SRW
LIGHT BAR 660NM RED 8.89X8.89MM
KB-H100SRW
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