ICX278AK

更新时间： 2024-01-12 18:05:20

品牌	Logo	应用领域
索尼 - SONY		传感器换能器图像传感器摄像机
页数	文件大小	规格书
19页	205K
描述
Diagonal 4.5mm (Type 1/4) CCD Image Sensor for NTSC Color Video Cameras

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ICX278AK 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	Reach Compliance Code：	unknown
风险等级：	5.71	Is Samacsys：	N
其他特性：	ELECTRONIC SHUTTER	阵列类型：	INTERLINE
主体宽度：	10.16 mm	主体高度：	4.62 mm
主体长度或直径：	10 mm	动态范围：	-108 dB
水平像素：	768	外壳：	PLASTIC
安装特点：	THROUGH HOLE MOUNT	最大工作电流：	6 mA
最高工作温度：	60 °C	最低工作温度：	-10 °C
光学格式：	1/4 inch	输出范围：	1000mV
输出类型：	ANALOG VOLTAGE	封装形状/形式：	SQUARE
像素大小：	4.75X5.55 µm	电源：	15 V
灵敏度（V / lx.s）：	3.2 V/lx.s	传感器/换能器类型：	IMAGE SENSOR,CCD
光谱响应 (nm)：	400-1000	子类别：	CCD Image Sensors
最大供电电压：	15.45 V	最小供电电压：	14.55 V
表面贴装：	NO	端接类型：	SOLDER
垂直像素：	494	Base Number Matches：	1

ICX278AK 数据手册

ICX278AK

Image Sensor Characteristics Measurement Method

Measurement conditions

1) In the following measurements, the device drive conditions are at the typical values of the bias and clock

voltage conditions.

2) In the following measurements, spot blemishes are excluded and, unless otherwise specified, the optical

black level (OB) is used as the reference for the signal output, which is taken as the value of Y signal output

or chroma signal output of the measurement system.

Color coding of this image sensor & Composition of luminance (Y) and chroma (color difference) signals

As shown in the left figure, fields are read out. The charge is

mixed by pairs such as A1 and A2 in the A field. (pairs such

as B in the B field)

As a result, the sequence of charges output as signals from

the horizontal shift register (Hreg) is, for line A1, (G + Cy),

(Mg + Ye), (G + Cy), and (Mg + Ye).

Hreg

Color Coding Diagram

These signals are processed to form the Y signal and chroma (color difference) signal. The Y signal is formed

by adding adjacent signals, and the chroma signal is formed by subtracting adjacent signals. In other words,

the approximation:

Y = {(G + Cy) + (Mg + Ye)} × 1/2

= 1/2 {2B + 3G + 2R}

is used for the Y signal, and the approximation:

R – Y = {(Mg + Ye) – (G + Cy)}

= {2R – G}

is used for the chroma (color difference) signal. For line A2, the signals output from Hreg in sequence are

(Mg + Cy), (G + Ye), (Mg + Cy), (G + Ye).

The Y signal is formed from these signals as follows:

Y = {(G + Ye) + (Mg + Cy)} × 1/2

= 1/2 {2B + 3G + 2R}

This is balanced since it is formed in the same way as for line A1.

In a like manner, the chroma (color difference) signal is approximated as follows:

– (B – Y) = {(G + Ye) – (Mg + Cy)}

= – {2B – G}

In other words, the chroma signal can be retrieved according to the sequence of lines from R – Y and – (B – Y)

in alternation. This is also true for the B field.

– 9 –

1...6 7 8910 11 12...19

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