VL6522V0MH STMicroelectronics, VL6522V0MH Datasheet - Page 12

• Manufacturer Part Number: VL6522V0MH
• Manufacturer: STMicroelectronics
• Type: CMOSr

Specifications of VL6522V0MH

• Sensor Image Color Type: Color
• Sensor Image Size Range: 250,920 to 480,000Pixels
• Sensor Image Size: 640x480Pixels
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: -30C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 36
• Lead Free Status / RoHS Status: Compliant

Detailed description
4.1.6
4.1.7
4.1.8
4.1.9
4.1.10
4.1.11
4.1.12
4.1.13
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Typically, the visual effect is at its worst where the distance from the optical centre to the
edge of the image is at its maximum and manifests itself as the familiar ‘darkening of the
image corners’.
Channel offset
The channel offset module is used to add or subtract a programmable offset from each of
the four Bayer color channels of the incoming IDP. These offsets are typically used to
remove a data pedestal or cancel a dark offset introduced at an earlier stage in the pipe.
Channel gain
The channel gain module is used to apply a programmable gain to each of the four Bayer
color channels of input data. These gains are used as controls of Automatic Exposure
Control (AEC) and Automatic White Balance (AWB).
Defect correction
This function runs a defect correction filter over the data in order to remove defects from the
final output. This function has been optimized to attain the minimum level of defects from the
system.
Interpolation (demosaic)
The interpolation module converts Bayer pixel data to RGB and applies an anti-alias filter to
the data.
Color matrix
The color matrix correction transformation is performed on the outputs of the interpolation
module.
Sharpening
The sharpening module’s function is to add a certain amount of peaking components to the
original interpolated RGB. Indeed, the interpolation process involves a certain degree of
low-pass filtering that blurs the original sharpness of the image.
In order to realize 2-dimensional sharpness easily, the sharpening filter is only applied on
the green components (green carries the highest luma component). The output of the filter
is re-injected into the R, G, and B components from the matrix, via a process called coring.
Gamma correction
The gamma correction module applies a non-linear compensation to the IDP RGB data
stream in order to achieve correct reproduction of intensity on the host display.
RGB to YUV 422
Conversion of RGB to YUV 4:2:2. The YUV comprises luminance (Y) and chrominance (U
and V) components.
VL6522