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參數(shù)資料
| 型號(hào)： | LC9997M |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, DFM20 |
| 封裝： | DIP-20 |
| 文件頁數(shù)： | 9/11頁 |
| 文件大小： | 212K |
| 代理商： | LC9997M |
Test Methods
The following tests are to be performed using the evaluation unit made by Sanyo Electric Co., Ltd.
1. Sensitivity
Using the CCD-SY1 light source (made by Wakasa Optical Co., Ltd.) illuminate the pixel surface with an intensity of
7 lux. Measure the CCD outputs (G, Ye, Cy, and W) at the center of the screen in that state with the T8331 tester
(made by Advantest, Inc.). The sensitivity is the average value for four pixels.
Use the following formulas to determined the R and G gains.
R = E – D
B = A – C
G = (C+D)/2
GR = G/R
GB = G/B
2.Image signal uniformity
Measure the uniformity under the following conditions
The standard drive state (See the specifications document.)
Using a halogen lamp with a color temperature of 3200 °K as the light source
Using an IR cutting filter (C-500, 1mmt)
Illuminate the CCD surface with an intensity of 7 lux. Divide the surface of the CCD into 45 sections as shown in the
figure and measure the average value for each block. Determine the maximum, minimum, and mean of those
measurements, and determine the ratio of the difference with respect to the block average.
<Maximum of the block averages> – <Minimum of the block averages>
VF = ——————————————————————————————
<Mean of the block averages>
3. Saturation signal
Set up the following conditions using the Sanyo evaluation unit.
The standard drive state (See the specifications document.)
Light source: The LV-2001 pattern box (made by Kyoritsu Electronics, intensity: 870 NITS, color temperature:
3100 °K)
Lens: HF 16A (made by Fujinon) with the aperture fully open.
Measure the CCD output signal from the center of the screen under these conditions.
4. Smear
Place the 1/10-V chart described below in front of the halogen light source and image it.
Using neutral density filters, adjust the incident illumination such that the CCD output signal at point A becomes
250 mV.
Remove the neutral density filters and measure the value of the CCD output signal for the first line (i.e. at point B).
No. 5783-7/11
LC9997M
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