PixArt Imaging Inc.

PAS005B

CMOS Image Sensor IC

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PixArt Imaging Inc.

[i,j]′= ( [i,j] + [i+1,j] ) / 2,

while in CIF-sub-sampling, the sub-sampled pixel date are

[i,j]′= ( [i,j] + [i,j+2] + [i+2,j] + [i+2,j+2] ) / 4,

MFA : Mono Mode

rf = 0, cf = 0

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rf = 0, cf =1

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rf = 1, cf =1

VGA

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rf = 2, cf =2

vga_ave_Ena=1

row_ave_Ena=1

CIF

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Fig 4.3.4

4.3.5 Output timing of sub-sampling

4.3.5.1 Sub-sampling VGA(640X480) from (1288 X 968 ) windowing:

(with 4 column and 2 row for color interpolation)

cf[1:0] = 1, rf[1:0]=1, sub-sampling rate (1/2,1/2),

wcp[10:0]=0, wcw_in[10:0]=1287, column pixels 644=(1287+1)/2,

wrp[10:0]=0,wrd[10:0]=963, row pixel 484=(963+1)/2,

cm =1, single_path = 1, row_ave= 1, CDS_ext2_in =1.