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參數(shù)資料
| 型號(hào)： | LU850425 |
| 廠商： | Sharp Corporation |
| 英文描述： | 8-bit Microcomputer for DSP Camera Systems |
| 中文描述： | 8位單片機(jī)系統(tǒng)的DSP攝像機(jī) |
| 文件頁數(shù)： | 10/15頁 |
| 文件大小： | 125K |
| 代理商： | LU850425 |
LU850425
10
Auto Exposure Control
Auto exposure control has the following three
functions :
q
E/E (Electronic Exposure) function
w
Mechanical exposure function
e
AGC (Automatic Gain Control) function
Carrier Balance Control
Carrier balance control has the following two
functions.
q
At power on, carrier balance is automatically
tuned.
w
Carrier balance is automatically tuned against
AGC operation.
Auto White Balance Control
Control method : A white color temperature
control is sampled by an I/Q conversion signal.
By the reasoning of the video condition from I/Q,
brightness, and other signal levels, white balance
is controlled to keep the best condition.
(3) Window Selection of Emphasis Range at Auto Exposure
INPUT VOLTAGE (PIN 49)
0 to 0.8 V
0.81 to 1.6 V
RANGE SELECTION
Preset 1
Preset 2
See
"Fig. 1"
.
See
"Fig. 1"
.
Whole range
2.41 to 3.3 V
Preset 3
See
"Fig. 1"
.
1.61 to 2.4 V
A
A
B
C
A
B
C
A
B
C
A = 25%
B = C = 100%
Emphasis range
Preset 1
Preset 2
Preset 3
A
A
A
Fig. 1 Emphasis Range
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