Moteur de recherche de fiches techniques de composants électroniques
Selected language     French  ▼
Nom de la pièce

CH5001A Datasheet(Fiches technique) 6 Page - List of Unclassifed Manufacturers

Numéro de pièce CH5001A
Télécharger  34 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricant  ETC1 [List of Unclassifed Manufacturers]
Site Internet  

 6 page
background image
201-0000-032 Rev 3.0, 6/2/99
Functional Description
The CH5001 accepts a light input to a photosensitive array, and produces a digital video stream in response.
Each photodiode in the array is covered with a red, green or blue filter whose spectral response is designed to
provide a proper color picture when displayed on a standard monitor/TV. The internal functions performed are:
Scanning of the photodiode array into a serial data stream.
Programmable gain sample and hold with programmable offset.
Digitization of data stream.
Transform the data from the color filter domain to RGB domain.
Programmable gamma correction and RGB offset.
Conversion from RGB to YCrCb domain.
Interpolate/Decimate data to desired resolution
Formatting of the data stream for the desired type of output.
Automatic Shutter, Gain and Black Setting.
Timing signal generation.
Bus control.
Power up control of key register bits
Scanning of the photodiode array:
The CH5001 serializes the data captured in the photo array, and outputs one pixel of data each clock period.
The first row is output a programmable number of lines after the leading edge of the vertical sync output. After
the entire row has been output, the next row will be addressed and output. Correlated double sampling tech-
niques are used during readout to reduce fixed pattern noise. After this transfer is complete, pixel data is seri-
ally sent to the programmable gain amplifier and then to an A/D converter.
Programmable gain sample and hold:
The programmable gain is divided into two sections. The first gain block is controlled by PGSH[2:0] and the
second by the ADFS control. ADFS can be treated as the MSB of the gain control, and a plot of gain versus
control setting is shown below. The programmable gain section also provides a bias adjustment, under the con-
trol of the an chip DAC. When the ASBE bit is a one (default) this DAC value is determined automatically, via
a feedback loop which monitors the A/D output signal. When the ASBE bit is a zero, the DAC can be con-
trolled via BCLMP[7:0].

Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34 

Datasheet Download

Numéro de composants électroniques

Numéro de pièceDescription des composantsHtml ViewFabricant
OV6620SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA 1 2 3 4 5 MoreList of Unclassifed Manufacturers
OV6630SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA 1 2 3 4 5 MoreList of Unclassifed Manufacturers
CH5101ACMOS Monochrome Digital Video Camera 1 2 3 4 5 MoreList of Unclassifed Manufacturers
OV7620OV7620 SINGLE-CHIP CMOS VGA COLOR DIGITAL CAMERA 1 2 3 4 5 MoreList of Unclassifed Manufacturers
LQ064V1DS11Color TFT-LCD Module LCD TV/Digital still camera 1 Sharp Electrionic Components
ICX058CKDiagonal 6mm Type 1/3 CCD Image Sensor for NTSC Color Video Camera 1 2 3 4 5 MoreSony Corporation
BD6300KU3 in 1 Motor Driver for Digital Video Camera 1 2 3 4 5 MoreRohm
MN67621FColor Video Camera Synchronizing Signal Generator LSI 1 2 3 4 5 MorePanasonic Semiconductor
LQ4FN31Color TFT-LCD Module for AV/Car Navigation LCD TV/Digital still camera/LCD camcorder 1 Sharp Electrionic Components
KS7332KS7332 is a digital image signal handling IC aimed at improving image contrast and counter light correction applicable to CCD-using video camera syst 1 2 3 4 5 MoreSamsung semiconductor

Lien URL

AllDATASHEET vous a-t-il été utile ?   [ DONATE ]  

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Favoris   |   Echange de liens   |   Fabricants
All Rights Reserved ©

Mirror Sites
English :  ,  |   Chinese :  |   German :  |   Japanese :  |   Russian :
Korean :   |   Spanish :  |   French :  |   Italian :  |   Portuguese :  |   Polish :