參數(shù)資料
型號: TH7899M
廠商: ATMEL CORP
元件分類: 圖像傳感器
英文描述: FullFieldCCDImageSensor 2048x20Pixels48
中文描述: IMAGE SENSOR-CCD, 2048(H) X 2048(V) PIXEL, 10.5V, SQUARE, THROUGH HOLE MOUNT
文件頁數(shù): 3/24頁
文件大?。?/td> 1378K
代理商: TH7899M
3
TH7899M
2201A–IMAGE–02/02
Figure3.
CrossSectionalView(AA')ofaPhotoelementandPotentialProfileDuring
Integration
ImageArea
Theimageareaconsistsofanarrayof2048x2048usefulphotoelementsforimaging.
Thematrixalsoincludes:
7columnsofdarkreferenceand5isolationcolumns(halfcovered)ontherightand
leftsides.Theisolationcolumnsaretoensurethe2048activecolumnsandare
100%photosensitive,
8supplementarylinesineachzoneABCandD;theselinesareusefulwhenusing
anopticalshieldincaseofframetransferarchitecturewithmemoryzonetocorrect
smearing(digitalcorrection).
Amongthese8linesinzonesAandD,3linesatthetopandatthebottomofthefull
imageareaaremaskedwithaluminium,alltheothersupplementarylinesare
photosensitive.
Theimageareaisdividedinto4partsof520lineseach(electricallybutnotoptically).
These4partscanbedrivenindependentlyallowingdifferentoperatingmodesas
describedhereunder.
FullFieldModes(No
MechanicalShieldOn
Package)
Insuchcasesamechanicalshutterisneededtoshieldthearrayfromincidentillumina-
tionduringthereadoutperiodtoavoidparasiticsignal(smearing)particularlyatlowdata
rates.Suchashutterisnotnecessaryifnolightiscomingontothephotosensitivearea
duringthereadouttime(e.g.incaseofpulsedlightsource).
Therearemainlythreedifferentmodeswhichcansquarewithdifferentopticalformats,
withreadoutoptimizedinspeedorwithsimplifiedoperatingconditions.
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