OV6630 Datasheet, PDF (6/29 Pages) List of Unclassifed Manufacturers – SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA

SINGLE IC CMOS COLOR AND B/W DIGITAL CAMERAS
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
YUV 4:2:2
RGB
Y/UV swap²
U/V swap
YG
One Line
MSB/LSB swap
Pixel Clock
16-bit
8-bit
ITU-656
Nibble
16-bit
8-bit
ITU-656¹
Nibble
16-bit
8-bit
YUV³
RGB⁴
16-bit
8-bit
16-bit
8-bit
352 x 288
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
704 x 288
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
176 x 144
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
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.
March 4, 2000
Version 1.0
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