参数资料
型号: KAC-9627
厂商: Eastman Kodak Company
文件页数: 15/41页
文件大小: 0K
描述: IC SENSOR IMAGE VGA 48CLCC
标准包装: 480
象素大小: 7.5µm x 7.5µm
有源象素阵列: 648H x 488V
每秒帧数: 30
电源电压: 3.3V
类型: CMOS 成像
封装/外壳: 48-LCC
供应商设备封装: 48-LCC(14.22x14.22)
包装: 散装
请注意: *
其它名称: LM9627
IMAGE SENSOR SOLUTIONS
Functional Description (continued)
5.0
FRAME RATE & EXPOSURE CONTROL
5.2 Analog Gain and Color Gain
There are two analog gain stages built into the sensor before the
5.1 Introduction
A frame is defined as the time it takes to reset every pixel in the
array, integrate the incident light, convert it to digital data and
present it on the digital video port. This is not a concurrent pro-
cess and is characterized in a series of events each needing a
certain amount of time as shown in Figure 20.
A/D allowing the video and separate color gains to be pro-
grammed.
The video gain is given by:
V gain = 1+ 0.07032 * VidGain
Where:
Start
VidGain
is the six bit video gain step programmed in the
VGAIN register
Row address = 0
Row delay time
The red gain is given by:
R gain = 1 + 0.03125 * RGain
Where:
Transfer all pixels to CDS
RGain
is the six bit video gain step programmed in the
RGAIN register
Reset all pixels in row
The green gain is given by:
G gain = 1 + 0.03125 * GGain
Shift all pixels out of row
Where:
Row address + 1
GGain
is the six bit video gain step programmed in the
GGAIN register
Yes
Last row?
No
The blue gain is given by:
B gain = 1 + 0.03125 * BGain
Figure 20. Frame Readout Flow Diagram
Where:
The following factors effect frame rate, the:
BGain
is the six bit video gain step programmed in the
?
?
?
?
?
frequency of Hclk
size of the “ Scan Window ”
sub sampling mode
programmed row delay
programmed frame delay.
BGAIN register
The following factors effect exposure but not frame rate
? analog gain
? integration time
? modification of the sensor ’s linear response.
This section describes how to program the frame rate and expo-
sure time.
www.kodak.com/go/imagers 585-722-4385
15
Email:imagers@kodak.com
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