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OV7620 Datasheet(PDF) 24 Page - List of Unclassifed Manufacturers

Part # OV7620
Description  OV7620 SINGLE-CHIP CMOS VGA COLOR DIGITAL CAMERA
PDF  60 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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OV7620 Datasheet(HTML) 24 Page - List of Unclassifed Manufacturers

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OV7620 Product Specifications - Rev. 1.2 (5/13/00)
OMNIVISION TECHNOLOGIES INC.
24
Preliminary Company Confidential
FIG 1.6 Frame Exposure Timing
Note: Tpr = 492 * 4 * Pclk, Pclk is internal pixel clock. For default 27MHz, Tclk=74 ns. If CLK<5:0> set to
divided number, Tclk will increase accordingly.
Tex is array exposure time which is decided by external master device.
Tin is undetermined due to the use of HSYNC rising edge to synchronize FREX, Tin < Ths
When FREX=0, there are 8 lines of data output before valid data output. Thd = 4 * Ths. Valid data is output
when HREF=1.
Tset = Tin + Tpr + Tex. Tset > Tpr + Tin. Because Tin is uncertain, so exposure time setting resolution is
Ths (one line).
FREX
DATA
HSYNC
OUTPUT
VSYNC
ARRAY
PRECHARGE
Black Data
Invalid Data
Valid Data
1 Frame (484 line)
Prechage begin at rising edge of HSYNC
Array Exposure Period Tex
Array Precharge
period Tpr
Tset
Next Frame
Mechanical shutter closed
Head of Valid data
Tin
Ths
Thd
HREF
(8 line)



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