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PDF ICM105B Data sheet ( Hoja de datos )
| Número de pieza | ICM105B | |
| Descripción | Color VGA CMOS Image Sensor | |
| Fabricantes | IC Media | |
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ICM105B VGA CMOS sensor
Data Sheet V1.6, August 2002
ICM105B
Color VGA CMOS Image Sensor
Data Sheet
V1.6
August 2002
IC Media Corporation
IC Media Technology Corporation
545 East Brokaw Road
San Jose, CA 95112, U.S.A.
Phone: (408) 451-8838
Fax: (408) 451-8839
Email: [email protected]
Web Site: www.ic-media.com
6F, No. 61, ChowTze Street., NeiHu District
Taipei, Taiwan, R.O.C.
Phone: 886-2-2657-7898
Fax: 886-2-2657-8751
Email: [email protected]
Web Site: www.ic-media.com.tw
Important notice: This document contains information of a new product. IC
Media Corp reserves the right to make any changes without further notice to any
product herein to improve design, function or quality and reliability. No
responsibility is assumed by IC Media Corp for its use, nor for any infringements
of patents of third parties, which may result from its use.
©2000, 2001,2002 IC Media Corporation & IC Media Technology Corp
web site: http://www.ic-media.com/
web site: http://www.ic-media.com.tw/
page 1
10/16/2002
Confidential
1 page  
ICM105B VGA CMOS sensor
Data Sheet V1.6, August 2002
2. Functional Description
ICM-105B is a single-chip digital color imaging device. It includes a 640x480 sensor array, 640 column-
level ADC, and correlated double sampling circuitry. All the programmable parameters are set by writing
into the SIF interface which can address the register file consisting of 8-bit registers. The output format is
8-bit raw data, together with horizontal and vertical sync signals.
SIF
Interface
Timing
Control
Sensor Array
640x480
Column-Level
ADC
Correlated
Double
Sampling
Digital
Gain
Output Control
Figure 1. Block diagram
2.1 Image Array
The image array consists of 640x480 pixels. Each pixel has a light sensitive photo diode and a set of
control and transfer transistors. At the beginning of the cycle, a row of pixels are pre-charged to its
maximum value. Then they are exposed to light for several lines worth of time and sampled by the ADC.
Correlated double sampling (CDS) is performed by subtracting the reset value (sampled right before
sampling the signal) from the signal value. The purpose of CDS is to eliminate the point-wise fixed pattern
noise (FPN). The output of CDS is approximately proportional to the amount of received light, ranging
from 0 to 255.
2.2 Color Filter
Each pixel is covered by a color filter. They form the Bayer Pattern as shown in Figure 2. (Row 0,
Column 0) is covered by a Red filter, (Row 0, Column 1) and (Row 1, Column 0) by Green filters, and
(Row 1, Column 1) by a Blue filter. Since each pixel only gets part of the frequency band, the data need
further processing (i.e., color interpolation and color correction) in order to approximate the full visible
spectrum.
©2000, 2001,2002 IC Media Corporation & IC Media Technology Corp
web site: http://www.ic-media.com/
web site: http://www.ic-media.com.tw/
page 5
10/16/2002
Confidential
5 Page 
ICM105B VGA CMOS sensor
Data Sheet V1.6, August 2002
4. Electrical Characteristics
4.1 DC Characteristics
Symbol
VCCA
VINA
VOUTA
TSTG
VCC
VIN
TOPR
IDD
IIL
IIH
IOZ
CIN
COUT
CBID
Parameter
Absolute
Power
Supply
Absolute
Input
Voltage
Absolute
Output
Voltage
Storage
Temperature
Operating
Power
Supply
Operating
Input
Voltage
Operating
Temperature
Operating
Current @
VCC=3.3 V,
25 °C
Input Low
Current
Input High
Current
Tri-state
Leakage
Current
Input
Capacitance
Output
Capacitance
Bi-
directional
Buffer
Minimum
-0.3
-0.3
-0.3
0
3.14
0
0
-1
-1
-10
Rating
Typical
25
3.3
25
30
3
3
3
Maximum
3.8
Unit
V
VCC + 0.3
V
VCC + 0.3
V
65 °C
3.47 V
VCC V
55 °C
mA
1 µA
1 µA
10 µA
pF
pF
pF
©2000, 2001,2002 IC Media Corporation & IC Media Technology Corp
web site: http://www.ic-media.com/
web site: http://www.ic-media.com.tw/
page 11
10/16/2002
Confidential
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet ICM105B.PDF ] | |
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