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OV7620 датащи(PDF) 16 Page - List of Unclassifed Manufacturers

номер детали OV7620
подробное описание детали  OV7620 SINGLE-CHIP CMOS VGA COLOR DIGITAL CAMERA
PDF  60 Pages
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производитель  ETC [List of Unclassifed Manufacturers]
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OV7620 датащи(HTML) 16 Page - List of Unclassifed Manufacturers

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OV7620 Product Specifications - Rev. 1.2 (5/13/00)
OMNIVISION TECHNOLOGIES INC.
16
Preliminary Company Confidential
1.6 ZV Port Interlace Timing
The ZV Port is a single-source uni-directional video bus between a PC Card socket and a VGA
controller. The ZV Port complies with CCIR601 timing to allow NTSC decoders to deliver real-
time digital video straight into the VGA frame buffer from a PC Card. OV7620 support ZV Port
Timing, which output signal can be output to a PC Card directly, then to VGA controller. The tim-
ing is as below:
FIG 1.4 ZV Port Timing
Notes: ZV Port format output signal include:
VSYNC: Vertical sync pulse.
HREF: Horizontal valid data output window.
PCLK: Pixel clock used to clock valid data and CHSYNC into ZV Port. Default frequency is 13.5MHz when
use 27MHz as system clock. Rising edge of PCLK is used to clock the 16 Bit data.
Y<7:0>: 8 Bit luminance data bus..
UV<7:0>: 8 Bit chrominance data bus.
All Timing Parameters is list in following table.‘
VSYNC
PCLK
Y<7:0>
UV<7:0>
/
HREF
639 640
t8
t8
Even Field 1(FODD=0)
Odd Field(FODD=1)
t6
t7
t1
t2
t3
t4
Horizontal Timing
VSYNC
Y<7:0>/
UV<7:0>
Valid Data
1 Line
Tvs
Tve
t5
Tline
1
2



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