CMV50000 datasheet(21/137 Pages) AMSOSRAM

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CMV50000

Functional Description

Datasheet

• PUBLIC

DS000522

• v4-00 • 2023-Aug-03

136

│ 20

Figure 14:

Pixel Array

The pixel array can be split up in 3 parts: Optical black (OB) pixels (left and right side), buffer pixels

(around effective array perimeter) and effective pixels. Only the 68 effective OB pixels are used for

internal row clamping, which improves row noise and allows setting a pre-defined black level. The

buffer pixels form a guard ring around the effective pixels. The buffer pixels are optically active, but are

not guaranteed to meet the optical specifications. The 98 OB and 22 buffer pixels are read out via the

sub-LVDS OB-L/R outputs.

The full resolution of the pixel array is 8160 × 6048 pixels. This results in an effective resolution of

7920 × 6004 pixels or 47.5Mpixels. The effective array is 36.4mm × 27.6mm which is slightly larger

than the 35mm full frame optical format (= 36mm × 24mm; which would correspond to a window of

7826 × 5217).

Because of the large sensor area, a wafer process called mask stitching is done. The vertical stitch

line is located exactly in the middle of the array. Therefor a small offset between the pixels left and

right of the stitch line might be present.

Micro-lenses are placed on the pixels for improved quantum efficiency and fill factor.

7.1.2

Analog Front End

The analog front end consists of the PGA (programmable gain amplifier) and circuitry to prepare the

signal for ADC conversion.

Effective Pixels

Buffer Pixels

22 buffer pixels

98 OB pixels (68 eff. OB)

7920 (effective)

8160

6004

(effective)

6048

3960 (=120*33)

22 buffer pixels

98 OB pixels (68 eff. OB)

120

15 buffer

Effective OB

Pixel (0,0)

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