Datasheet > PAS302BCA-32

PAS302BCA-32

更新时间： 2022-12-21 20:21:14

品牌	Logo	应用领域
原相 - PIXART		传感器图像传感器
页数	文件大小	规格书
15页	343K
描述
CMOS VGA DIGITAL IMAGE SENSOR

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PAS302BCA-32 数据手册

PAS302BCA-32

CMOS Image Sensor IC

3. Function Description

3.1.Defect Compensation

The Defect Compensation block can detect the possible defect pixel and replace it with average

output of like-colored pixels from near side of defect pixel. There is no limitation capability of

defect pixel number. This function can be programmed to enable/disable by user.

3.2.Companding Curves

The companding function which means compressing and expanding is used to simulate the

gamma curve and do non-linear transformation before the data is output. There are 4 curves

selected by setting Register Compand_Sel as shown in Fig. 3.1. This function can be

programmed to enable/disable by user.

O/P ( 10-Bit)

11,1111,1111

without companding

00,0xxx,xxxx 00,1xxx,xxxx

010

011

10,xxxx,xxxx

11,xxxx,xxxx

I/P ( 10-Bit)

Figure 3.1 Companding curves program by Compand_EnH and Compand_Sel.

3.3.Power Down Mode

The PAS302BCA-32 can be powered down by setting register “Sw_PwrDn” = 1 or by enable

Pwdn pin. The register value will sustain in the power down mode. PAS302BCA-32 supports 2

power down modes:

Software power down：Set register “Sw_PwrDn” = 1 to power down all the internal block

except I²C^TM

Hardware power down：Pull Pwdn pin to high to power down the chip. The chip will go into

standby mode.

3.4.Reset Mode

The PAS302BCA-32 can be reseted by setting register “Sw_Reset” = 1 or by enable Reset pin.

PAS302BCA-32 supports 2 reset modes:

Software reset：Set register “Sw_Reset” = 1 to reset all the I²C^TMregisters.

Hardware reset：Pull Reset pin to high to reset the full chip.

Version 2.3, 13 Sep. 2004

PixArt Imaging Inc.

E-mail: fae_service@pixart.com.tw

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