CMV8000 datasheet(42/90 Pages) AMSOSRAM

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CMV8000

Functional Description

Preliminary Datasheet

• PUBLIC

DS000609

• v1-00 • 2019-Jun-12

│ 41

Figure 44:

Piecewise Linear Registers

Bit Name

Address

Description

exp_length[7:0]

41-43

Set the total exposure time

slopes[1:0]

Set the number of slopes

exp_k1[7:0]

48-50

Set the exposure time of kneepoint 1

exp_k2[7:0]

51-53

Set the exposure time of kneepoint 2

vtglow1[6:0]

Set the VTGLOW1 voltage

Bit[6] = Enable

Bit[5:0] = Set voltage between 0 V and 1.8 V (linear)

vtglow2[6:0]

Set the VTGLOW2 voltage

Bit[6] = Enable

Bit[5:0] = Set voltage between 0 V and 1.8 V (linear)

vtglow3[6:0]

Set the VTGLOW3 voltage

Bit[6] = Enable

Bit[5:0] = Set voltage between 0 V and 1.8 V (linear)

Maximum Frame Rate Calculation

The frame rate is determined by two factors.

●

Exposure time

●

Frame time

In case the exposure time is longer than the frame time, the frame rate is entirely determined by the

exposure time and is thus dependent on the user. For the following calculation, we assume that the

exposure time is shorter than the frame time, which means the frame rate is defined by the sensor.

The frame time depends on the following factors:

●

Clock speed

●

ADC mode

●

Number of lines in the frame

●

Multiplexing mode

If any of these parameters change, it will have an impact on the maximum frame rate of the sensor.

For this calculation the following assumptions are made:

●

Clock speed: 300 MHz

●

ADC mode: 10-bit

●

Full resolution frame

●

Multiplexing mode: All 16-LVDS outputs used

First, the frame overhead time is calculated. In this sequence, the sensor samples the signal in the

pixel and presents it to the read-out.

CMV8000 Datasheet(PDF) 42 Page - ams-OSRAM AG

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