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LC82102W, LC82102WA-04, LC82103

Table of contents:
Info of LC82102W
Info of LC82102WA-04
Info of LC82103

LC82102W, LC82102WA-04, LC82103 Selling Leads, Datasheet

MFG:SANYO Package Cooled:QFP D/C:04+

LC82102W, LC82102WA-04, LC82103 Datasheet download

Five Points

Part Number: LC82102W

MFG: SANYO

Package Cooled: QFP

D/C: 04+

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LC82102W General Description

The LC82102 and LC82102W convert analog video signals from CCD or contact image sensors to highquality binary video data. The LC82102/W converts the input analog data to multi-valued data and uses twodimensional filtering and an error diffusion technique that produces high-quality images to produce a two-valued image. Finally, the LC82102 reduces the image in the main and subsidiary scan directions. The LC82102 requires absolutely no external memory since it limits the number of pixels processed to 2040 per line. This LSI can implement the image processing used by FAX, copier and OCR products.

LC82102W Maximum Ratings

Parameter	Symbol	Conditions	Ratings	Unit
Maximum supply voltage	V_DD _max		0.3 to +7.0	V
Maximum I/O voltages	V_I, V_{O max}		0.3 to V_DD + 0.3	V
Allowable power dissipation	P_{d max}	Ta70°C	350	V
Operating temperature range	T_opr		30 to +70	°C
Storage temperature range	T_stg		55 to +125	°C
Soldering conditions		Hand soldering: 3 seconds	350	°C
Soldering conditions		Reflow soldering: 10 seconds	235	°C

LC82102W Features

• Number of pixels processed: 2040 pixels/line
• Processing speed: 500 ns/pixel maximum (when the CLKIN input frequency is 32 MHz)
• Built-in 8-bit A/D converter (includes a sensor signal delay adjustment function)
• Built-in 6-bit D/A converter for setting the A/D converter high reference potential
• Sensor drive circuit (supports CCD and all CIS types)
• Digital clamp (single-point clamp, even/odd clamp)
• Distortion correction (white correction: 8-pixel averaging correction, black correction: black correction subtraction data setting)
• Gamma correction (supports user-defined curves)
• Simple binary-conversion processing (fixed threshold level, density-adaptive threshold level)
• Intermediate processing error diffusion (64 levels)
• Image reduction (thinning, fine black line retaining, fine white line retaining)
• Single-voltage 5 V supply and low power due to CMOS process fabrication

LC82103 General Description

The LC82103 converts the analog video signal from the CCD contact image sensor into high-precision binary image data. The LC82103 includes an 8-bit A/D converter and two 6-bit D/A converters. The 6-bit D/A converters are used for setting reference potential (high and low) of the 8 bit A/D converter. The LC82103 converts the input analog data to high precision multilevel data, that is produced by all pixel shading correction process, multilevel image resolution converting process, and g correction process of user defined curves. That multilevel data is converted to high-precision bi-level image that is produced by using two dimensional filtering, a image separation method, and an error diffusion technique. Finally the LC82103 is able to reduce the image in the horizontal and vertical directions, too. The LC82103 requires absolutely no external memory since it limits the number of pixels processed to 3072/line. This LSI can implement the image processing used by FAX, copier, and OCR applications.

LC82103 Maximum Ratings

Parameter	Symbol	Conditions	Ratings	Unit
Maximum supply voltage	V_{DD max}		0.3 to +7.0	V
Input and output voltage	V_I, V_O		0.3 to V_DD+0.3	V
Allowable power dissipation	P_{d max}	T_a 70°C	350	mA
Operating temperature	T_opr		30 to +70	°C
Storage temperature	T_stg		55 to +125	°C
Soldering temperature		Manual soldering 3 seconds	350	°C
Soldering temperature		Reflow soldering 10 seconds	235	°C

LC82103 Features

• Number of pixels processed: 3072 pixels/line
• Processing speed: 250 ns/pixel maximum (When CLKIN = 32 MHz)
• Built-in 8-bit A/D converter (with a sensor signal timing adjustment function)
• Built-in two 6-bit D/A converters for setting the A/D converter high and low reference potential
• Sensor drive circuit (supports CCDs and several CIS types)
• Digital clamping (single-point clamping, even/odd clamping)
• Distortion correction (white correction: all pixels, black correction: settable black correction subtracted data)
• g correction (support user-defined curves: 8-bit data)
• Image area separation (characters, photographs, screened halftone areas)
• Simple binary coding process (fixed threshold, brightness adaptive threshold)
• Intermediate processing error diffusion (64 levels)
• Multilevel image resolution conversion (1/2, 2/3, 3/2,2/1)
• Binary image reduction (horizontal: thinning, fine black line retaining, fine white line retaining, vertical: thinning, fine black line retaining)
• Single-voltage 5 V supply and low power due to CMOS process fabrication

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