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| 型號(hào)： | MT9V011 |
| 廠商： | Micron Technology, Inc. |
| 英文描述： | 1/4-INCH VGA CMOS ACTIVE-PIXEL DIGITAL IMAGE SENSOR |
| 中文描述： | 4英寸顯卡的CMOS有源像素的數(shù)字圖像傳感器 |
| 文件頁(yè)數(shù)： | 10/33頁(yè) |
| 文件大?。?/td> | 537K |
| 代理商： | MT9V011 |
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1/4-INCH VGA CMOS ACTIVE-PIXEL
DIGITAL IMAGE SENSOR
Preliminary
09005aef80c6407f
MT9V011_external_DS_2.fm - Rev. A 8/04 EN
Micron Technology, Inc., reserves the right to change products or specifications without notice.
10
2004 Micron Technology, Inc.
Frame Timing Formulas
The constant 113 in the formulas in Table3 is the
constant value in default mode, when 8 dark columns
are read out through Reg0x30. The constant follows
the dark columns read out as shown in Table 4.
Sensor timing is shown above in terms of pixel clock
and master clock cycles (please refer to Figure 7). The
recommended master clock frequency is 27 MHz.
Table 4:
REG 0X30, BIT 1:0
Constant Value
The vertical blanking and total frame time equa-
tions assume that the number of integration rows (bits
11 through 0 of Reg0x09) is less than the number of
active plus blanking rows (Reg0x03 + 1 + Reg0x06 + 1).
Table 5:
Frame Time - Master Clock
If this is not the case, the number of integration rows
must be used instead to determine the frame time, as
shown in Table 5.
Table 3:
Frame Time
PARAMETER
NAME
EQUATION
DEFAULT TIMING AT 27 MHZ
A
Active Data Time
(Reg0x04 + 1) x (Reg0x0A + 2)
640 pixel clocks
= 1280 master
= 47.4μs
6 pixel clocks
= 12 master
= 0.44μs
244 pixel clocks
= 488 master
= 18.07μs
P
Frame Start/End Blanking 6 x (Reg0x0A + 2)
Q
Horizontal Blanking
(113 + Reg0x05) x (Reg0x0A + 2)
(minimum Reg0x05 value = 9)
A+Q
Row Time
(Reg0x04 + 1 + 113 + Reg0x05) x (Reg0x0A + 2) 884 pixel clocks
= 1,768 master
= 65.48μs
25,868 pixel clocks
= 51,736 master
= 1.92ms
424,088 pixel clocks
= 848,176 master
= 31.41ms
449,956 pixel clocks
= 899,912 master
= 33.33ms
V
Vertical Blanking
(Reg0x06 + 1) x (A + Q) + (Q - 2 x P)
N
rows
x (A + Q) Frame Valid Time
(Reg0x03 + 1) x (A + Q) - (Q - 2 x P)
F
Total Frame Time
(Reg0x03 + 1 + Reg0x06 + 1) x (A + Q)
CONSTANT
1x
01
00
121
113
107
For 16 columns
For 8 columns
For no dark columns read, no row-wise noise correction applied
PARAMETER
NAME
EQUATION (MASTER CLOCK)
DEFAULT TIMING
V’
Vertical Blanking (long
integration time)
(Reg0x09 - Reg0x03) x (A + Q) + (Q - 2 x P)
25,868 pixel clocks
= 51,736 master
= 1.92 ms
449,956 pixel clocks
= 899,912 master
= 33.33ms
F’
Total Frame Time (long
integration time)
(Reg0x09 + 1) x (A + Q)
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