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4LS

Functional Description

Datasheet

• PUBLIC

DS000542

• v3-01 • 2022-Nov-17

114

│ 52

Figure 75:

8-Bit Timing Clocks with ROI On for Readout Mode 2-To-1

Parameters

Clocks

Readout Data

304

Readout Time

334

FCT

335

MTA => Line Rate

335 => 238.8 kHz

DTI

112

Max Integration Time

223 => 2787.5 ns

Minimum LVALLow_Period

For 4-To-1 mode:

●

Start Region of Interest Register Segment A = 0x8F = 143d

●

Start Region of Interest Register Segment B = 0x00

●

End Region of interest Register Segment A = 0xA0 = 160d

●

End Region of Interest Register Segment B = 0x11 = 17d

�� = ((160 − 123) + 1) × (4 × 4)) = 288 ��

�� = 288 + 38 = 326 ��

�� = 1 × 2 × 288 = 576 ��

Figure 76:

8-Bit Timing Clocks with ROI On for Readout Mode 4-To-1

Parameters

Clocks

Readout Data

208

Readout Time

326

FCT

335

MTA => Line Rate

335 => 238.8 kHz

DTI

112

Max Integration Time

223 => 2787.5 ns

Minimum LVALLow_Period

7.12

Anti-Corona Circuitry

“Corona effect” is a phenomenon sometimes observed under heavy overexposure condition when the

most exposed pixels start to become dark again instead of white. This condition can be detected by a

special circuitry and saturated pixels are then clamped to the white reference value, before A/D

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