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OV6630 Datasheet(Fiches technique) 6 Page - List of Unclassifed Manufacturers

Numéro de pièce OV6630
Description  SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA
Télécharger  29 Pages
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Fabricant  ETC [List of Unclassifed Manufacturers]
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SINGLE IC CMOS COLOR AND B/W DIGITAL CAMERAS
March 4, 2000
Version 1.0
6
The OV6630/OV6130 imager supports both ITU-601 and ITU-656
output formats in the following configurations (See Table 3. 4:2:2 16-
bit Format for further details):
-
16-bit, 4:2:2 format
(This mode complies with the 60/50 Hz ITU-601 timing
standard. See Table 3. 4:2:2 16-bit Format below)
-
8-bit data mode
(In this mode, video information is output in Cb Y Cr Y
order using the Y port only and running at twice the pixel
rate during which the UV port is inactive. See Table 4. 4:2:2
8-bit Format below)
-
4-bit nibble mode
(In the nibble mode, video output data appears at bits Y4-
Y7. The clock rate for the output runs at twice the normal
output speed when in B/W mode, and 4 times the normal
output speed in when in color mode.)
-
704 x 288 format
(When programmed in this mode, the pixel clock is doubled
and the video output sequence is Y0Y0Y1Y1 ··· and
U0U0V0V0 ···. See Figure 4. Pixel Data Bus (YUV Output)
below.)
The OV6630/OV6130 imager provides VSYNC, HREF, PCLK,
FODD, and CHSYNC as standard output video timing signals.
The OV6630/OV6130 imager can also be programmed to provide
RGB raw data in 16-bit, 8-bit, and 4-bit format. The output sequence
is matched to the OV6630 color filter pattern (See Figure 5. Pixel
Data Bus (RGB Output) below):
– Y channel output sequence is G R G R
– UV channel output sequence is B G B G
The video output appears in Y channel only and the UV channel is
disabled in 8-bit RGB raw data. The output sequence is B G R G.
In RGB raw data ITU-656 modes, the OV6630/OV6130 imager
asserts SAV (Start of Active Video) and EAV (End of Active Video)
to indicate the beginning and the ending of HREF window. As a
result, SAV and EAV change with the active pixel window. The 8-bit
RGB raw data is also accessible without SAV and EAV information.
The OV6630/OV6130 imager offers flexibility in YUV output format.
The device may be programmed as standard YUV 4:2:2. The device
may also be configured to “swap” the U V sequence. When swapped,
the UV channel output sequence in the 16-bit configuration becomes:
-
V U V U···.
The 8-bit configuration becomes:
-
V Y U Y···.
The third format available in the 8-bit configuration is the Y/UV
sequence swap:
-
Y U Y V···.
The single-chip camera can be configured for use as a black and white
image device. The vertical resolution is higher than in color mode.
Video data output is provided at the Y port and the UV port is tri-
stated. The data (Y/RGB) rate is equivalent to 16-bit in color mode.
The MSB and LSB of Y/UV or RGB output can be reversed. Y7 is
MSB and Y0 is LSB in the default setting. Y7 becomes LSB and Y0
becomes MSB in the reserve order configuration. Y2-Y6 are also
reversed appropriately.
Table 2. Digital Output Format
Resolution
Pixel Clock
352 x 288
704 x 288
176 x 144
16-bit
Y
Y
Y
8-bit
Y
Y
Y
ITU-656
Y
Y
Y
YUV 4:2:2
Nibble
Y
Y
Y
16-bit
Y
Y
Y
8-bit
Y
Y
Y
ITU-656
1
Y
Y
Y
RGB
Nibble
Y
Y
Y
16-bit
Y/UV swap
2
8-bit
Y
Y
Y
YUV
3
Y
Y
Y
U/V swap
RGB
4
Y
Y
Y
16-bit
Y
Y
Y
YG
8-bit
16-bit
Y
One Line
8-bit
MSB/LSB swap
Y
Y
Y
Note:
(“Y” indicates mode/combination is supported by OV6630/OV6130)
1. Output is 8-bit in RGB ITU-656 format. SAV and EAV are inserted at the beginning and ending of HREF, which
synchronize the acquisition of VSYNC and HSYNC. 8-bit data bus configuration (without VSYNC and
CHSYNC) can provide timing and data in this format.




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