LM9801CCV ,Greyscale/24-Bit Color Linear CCD Sensor ProcessorLM98018-BitGreyscale/24-BitColorLinearCCDSensorProcessorJune1996LM98018-BitGreyscale/24-BitColorLin ..
LM9810CCWM ,LM9810/20 10/12-Bit Image Sensor Processor Analog Front EndApplications• Power Dissipation 300mW• Color Flatbed Document Scanners• Color Sheetfed Scanners• Mu ..
LM9811CCV ,10-Bit Greyscale/30-Bit Color Linear CCD Sensor ProcessorFeaturesn 1.5 Million pixels/s conversion rateThe LM9811 is a high performance integrated signalpro ..
LM9820CCWM ,LM9810/20 10/12-Bit Image Sensor Processor Analog Front EndLM9810/20 10/12-Bit Image Sensor Processor Analog Front EndJuly 1998NLM9810/20 10/12-Bit Image Sens ..
LM9820CCWMX ,LM9810/20 10/12-Bit Image Sensor Processor Analog Front EndBlock DiagramMCLKSampCLKOSADC ClockR10/12 bit6MM 0 to 2V6MHzU D5-D0Samplerx3 UOS PGAGXADCVSIG XOSBD ..
LM9820CCWMX ,LM9810/20 10/12-Bit Image Sensor Processor Analog Front EndGeneral DescriptionThe LM9810 and LM9820 are high performance Analog Front
LPC4045ATED100K , choke coil inductor
LPC47M102S-MS , 100 Pin Enhanced Super I/O Controller with LPC Interface for Consumer Applications
LPC47N217N , 56-Pin Super I/O with LPC Interface
LPC47N217N-ABZJ-TR , 56-Pin Super I/O with LPC Interface
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LM9801CCV
Greyscale/24-Bit Color Linear CCD Sensor Processor
TL/H/12814
LM9801
8-Bit
Greyscale/24-Bit
Color
Linear
CCD
Sensor
Processor
June 1996
LM9801 8-Bit Greyscale/24-Bit Color Linear
CCD Sensor Processor
General Description
The LM9801isa high performance integrated signal proc-
essor/digitizerfor linear CCD image scanners.The LM9801
performsallthe analog processing (correlated double sam-
plingfor black leveland offset compensation, pixel-by-pixel
gain (shading) correction,and 8-bit analog-to-digital conver-
sion) necessaryto maximizethe performanceofa wide
rangeof linear CCD sensors.
The LM9801canbe digitally programmedto work witha
wide varietyof CCDs from different manufacturers.An inter-
nal configuration register sets CCDand sampling timingto
maximize performance, simplifyingthe designand manufac-
turing processes.
The LM9801canbe used with parallel output color CCDs.A
signal inversion mode easesuse withCISsensors.For com-
plementary voltage referenceseethe LM4041.
Applications Colorand Greyscale Flatbedand Sheetfed Scanners Faxand Multifunction Peripherals Digital Copiers General Purpose Linear CCD Imaging
Features2.5 Million pixels/s conversion rate Pixel-rate shading correctionfor individual pixels maxi-
mizes dynamic range and resolution, evenon ‘‘weak’’
pixels Implements Correlated Double Samplingfor minimum
noiseand offset error Reference and signal sampling points digitally con-
trolledin25ns incrementsfor maximum performance Generatesall necessary CCD clock signals Compatible witha wide rangeof linear CCDs Supports some Contact Image Sensors (CIS) TTL/CMOS input/output compatible
Key Specifications Resolution 8Bits Pixel Conversion Rate 2.5 MHz Supply Voltage a5Vg5% Supply Voltage (Digital I/O)
a3.3Vg 10%or a5Vg5% Power Dissipation 230 mW (max)
Connection Diagrams
TL/H/12814–1 TL/H/12814–2
Ordering Information
Commercial(0§CsTAs a70§C) Package
LM9801CCV V52A52-Pin PlasticLeadedChip Carrier
LM9801CCVF VEG52A52-Pin Thin Quad Flatpack
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C1996National SemiconductorCorporation RRD-B30M96/Printed inU.S.A. http://
