VV6444 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

VV6444

DUAL-MODE DIGITAL CAMERA CHIPSET

STMicroelectronics 

STV0680B+ VV6410/6411/6500

STV0680 Camera System Defect Specification

q Sensors VV6410/6411/6444 and VV6500 shipped before end Q1 2001 require Anti-speckle 1

q Sensors VV6500 shipped after start Q2 2001 require Anti-speckle 2

7.4 Definition of the "Test Conditions"

7.4.1

Optics

q No Lens or IR filter

q No dirt on sensor glass

7.4.2

Illumination and uniformity of scene

No lens should be used. The intensity of required illumination and the uniformity of the scene can be

defined thus. A defect-free image should give a luminosity histogramme (8 bits resolution) with the

following statistics:

1 Mean: (45% of full scale) < Mean < (65% of full scale). Ideal luminosity (mid grey) = 50-60% of

full scale.

2 Standard Deviation: Standard Deviation < 10.

7.5 Definition of a "Major Visible Defect"

Anything which is visible with the naked eye under the conditions described, is worthy of further

investigation. For example:

Version 3.4

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