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參數(shù)資料
| 型號(hào)： | OV6630 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA |
| 中文描述： | 單芯片CMOS到岸價(jià)格彩色數(shù)碼攝像機(jī) |
| 文件頁數(shù)： | 13/29頁 |
| 文件大?。?/td> | 206K |
| 代理商： | OV6630 |
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S INGLE IC CMOS COLOR AND B/W DIGIT AL CAMERAS
March 4, 2000
Version 1.0
13
FREX
DATA
OUTPUT
HSYNC
VSYNC
ARRAY
PRECHARGE
HREF
Invalid Data
T
SET
T
HD
1 Frame (292 Lines) Valid Data
Mechanical Shutter Off
T
IN
Array Exposure Period T
EX
Precharge begins at the rising edge of HSYNC
T
PR
Array Precharge Period T
PR
Head of Valid Data (8 Lines)
Next Frame
T
HS
Black Data
Note:
T
=292 x 4 x T
. T
is internal pixel period. T
CLK
=112ns if the system clock is 17.73MHz. T
CLK
will
increase with the clock divider CLK[5:0].
T
EX
is array exposure time which is decided by external master device.
T
is uncertain time due to the using of HSYNC rising edge to synchronize FREX. T
< T
.
There are 8 lines data output before valid data after FREX=0. T
HD
=4 THS. Valid data is output when
HREF=1.
T
=T
+ T
+ T
EX
. T
SET
> T
PR
+ T
IN
. The exposure time setting resolution is T
HS
(one line) due to the
uncertainty of T
IN
.
Figure 7. Frame Exposure Timing
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