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PDF ICM515NB Data sheet ( Hoja de datos )
| Número de pieza | ICM515NB | |
| Descripción | Color CMOS Image Sensor With 574x483 Pixel NTSC Composite Video Output | |
| Fabricantes | ETC | |
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ICM515NB 574x483 Pixel CMOS NTSC Sensor
Data Sheet V1.0 November 2002
ICM515NB
Color CMOS Image Sensor
With 574x483 Pixel NTSC Composite
Video Output
Data Sheet
V1.0
November 2002
IC Media 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
IC Media Technology Corporation
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
1/17/2003
page 1 Company Confidential
1 page  
ICM515NB 574x483 Pixel CMOS NTSC Sensor
Data Sheet V1.0 November 2002
2. Functional Description
ICM-515NB is a single-chip digital color imaging device. It includes a 574x483 sensor array, 574 column-level
ADC, correlated double sampling circuitry, an automatic exposure control module, a color interpolation module,
programmable white balancing, a color correction module and a programmable gamma correction module. 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 NTSC composite video, which includes horizontal and vertical sync signals.
SIF
Interface
Timing
Control
NTSC
Encoder
Sensor Array
574x483
Gamma
Correction
Column-Level
ADC
Format
Conversion
Correlated
Double
Sampling
Sensor
Control
Module
Color
Processing;
AE & AWB
Color
Interpolation
Figure 1. Block diagram
2.1 Image Array
The image array consists of 574x483 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 is pre-charged to its maximum value. Then the
row is exposed to light for several lines worth of time and sampled by the ADC. A “Correlated Double Sampling
(CDS)” process is performed with 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 512.
©2000, 2001,2002 IC Media Corporation & IC Media Technology Corp
1/17/2003
page 5 Company Confidential
5 Page 
ICM515NB 574x483 Pixel CMOS NTSC Sensor
Data Sheet V1.0 November 2002
[7:6]: 1/2^([7:6]+2): the ratio for Digtal gain
adjusting step
0x44
AD_AFSTEP
0x83
[7:0] Anti Flicker Exposure time adjust step under
30 fps, 131(60Hz), 158(50Hz)
0x45
AD_YBRIGHT
0x68
(104)
[7:0] Bright Limit, if "Y" > Birght Limit, the
pixel is bright pixel
AE and AWB status parameters for controller debugging purpose(read only)
0x46
AD_YCAverage®
[7:0] Y average value for center of a frame
0x47
AD_Yaverage®
7:0] Y average value for a whole frame
0x48
0x49
AD_NTBPL®
AD_NTBPH
[10:0] Number of too bright pixel
0x4A AD_AWBR®
[7:0] R average value for a frame
0x4B AD_AWBG®
[7:0] G average value for a frame
0x4C AD_AWBB®
[7:0] B average value for a frame
0x4D
0x4E
AD_AWBpixelL®
AD_AWBpixelH
[10:0] The number of pixel which is valid AWB
criteria
0x4F
AD_AWBRGBH®
R,G,B average MSB
[0] Raverage[8] [1]Gaverage[8] [2]Baverage[8]
Output format, CDS and dead pixel control parameters
0x52
AD_INOUTSEL**
0x0b
[7] Reserved
[6] choose the DAC source 0: CVBS(TV)
1:DSP input source according to
AD_DSP_CTRL
[5] swap Cb,Cr sequence when output YCbCr
[4:0] Normal output select
[4] 0:ouput DSP 1: output NTSC
[4:0]: 5'h0: 3.8 format rawdata after auto dark
5'h1: 4.7 format rawdata after auto dark
5'h2: 5.6 format rawdata after auto dark
5'h3: 6.5 format rawdata after auto dark
5'h4: rawdata after deadpixel remove and
sign process
5'h5: R channel data after interpolation
5'h6: G channel data after interpolation
5'h7: B channel data after interpolation
5'h8: control siganl adc_vector[8:0]
5'h9: sensor row[8:0]
5'ha: sensor column[9:0]
5'hb: DSP input source according to
AD_DSP_CTRL
5'hc: Reserved
5'hd: Y channel output according to
AD_DSP_CTRL output
5'he: YCbYCr or YCrYCb output
according to [5]
5'hf: CbYCrY or CrYCbY output
according to [5]
5'h10: digital CVBS output
5'h11: digital Chrominance(C) output
5'h12: digital luminance(Y) output
©2000, 2001,2002 IC Media Corporation & IC Media Technology Corp
1/17/2003
page 11 Company Confidential
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet ICM515NB.PDF ] | |
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