參數(shù)資料
型號(hào)： UPD8670A
廠商： NEC Corp.
英文描述： 7400 PIXELS CCD LINEAR IMAGE SENSOR
中文描述： 7400像素CCD線性圖像傳感器
文件頁(yè)數(shù)： 18/28頁(yè)
文件大?。?/td> 274K
代理商： UPD8670A
Data Sheet S17147EJ1V0DS
18
μ
PD8670A
10. Register imbalance :
RI
The rate of the difference between the averages of the output voltage of Odd and Even pixels, against the average
output voltage of all the valid pixels.
n
RI (%) =
2
n
j = 1
2
(V
2j – 1
–
V
2j
)
1
n
j = 1
n
V
j
×
100
∑
∑
: Number of valid pixels
: Output voltage of each pixel
n
V
j
11. Random noise :
σ
Random noise
σ
is defined as the standard deviation of a valid pixel output signal with 100 times (= 100 lines)
data sampling at dark (light shielding).
i = 1
i = 1
100
100
(mV) =
σ
, V =
100
(V
i
– V)
2
100
V
i
1
V
i
: A valid pixel output signal among all of the valid pixels
V
1
V
100
V
2
…
…
line 2
line 100
line 1
V
OUT
This is measured by the DC level sampling of only the signal level, not by CDS (Correlated Double Sampling).
12. Shot noise :
σ
shot
Shot noise is defined as the standard deviation of a valid pixel output signal with 100 times (= 100 lines) data
sampling in the light. This includes the random noise.
The formula is the same with that of random noise.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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UPD8748D 制造商:NEC Electronics Corporation 功能描述:MicroController, 8-Bit, 40 Pin, Ceramic, DIP
UPD8748HC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
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