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參數(shù)資料
| 型號： | TC254P |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDIP8 |
| 封裝： | 2.54 MM PITCH, WINDOWED, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 14/16頁 |
| 文件大?。?/td> | 245K |
| 代理商： | TC254P |
TC254P
336-
× 244-PIXEL CCD IMAGE SENSOR
SOCS060B – JUNE 1997 – REVISED JULY 1998
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
spurious-nonuniformity specification
The spurious-nonuniformity specification of the TC254P is based on several sensor characteristics:
Amplitude of the nonuniform pixel
Polarity of the nonuniform pixel
–
Black
–
White
Column amplitude
The CCD sensor is characterized in both an illuminated condition and a dark condition. In the dark condition,
the nonuniformity is specified in terms of absolute amplitude, as shown in Figure 5. In the illuminated condition,
the nonuniformity is specified as a percentage of the total illumination, as shown in Figure 6.
The specification for the TC254P is as follows:
WHITE SPOT
(DARK)
WHITE SPOT
(ILLUMINATED)
COLUMN
(DARK)
COLUMN
(ILLUMINATED)
BLACK SPOT
(ILLUMINATED)
WHITE/BLACK
PAIR
x < 15 mV
x < 15%
x < 0.5 mV
x < 1 mV
x < 15%
x < 9mV
A white/black pair nonuniformity will be no more than 2 pixels even for integration times of 1/60 second.
The conditions under which this specification is defined are as follows:
The integration time is 1/60 second except for illuminated white spots, illuminated black spots, and
white/black pair nonuniformities; in these three cases, the integration time is 1/120 second.
The temperature is 45°C.
The CCD video-output signal is 60 mV ± 10 mV.
mV
Amplitude
t
Illumination
% of Total
t
%
Figure 5. Pixel Nonuniformity,
Figure 6. Pixel Nonuniformity,
Dark Condition
Illuminated Condition
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|---|---|
| TC255 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:336- 】 244-pixel ccd image sensor |
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