Distance area image sensor

S11963-01CR

5

mclk

dclk

Vout1

Vout2

oe

hst

123

4

168

40 mclk

t20

208 (=40 + 168) × mclk

Frame timing 1 (1H)

KMPDC0447EA

Horizontal timing

Frame rate=1/(Time per frame)

=1/(Integration time + Readout time)

Integration time:

It is necessary to be changed by the required distance accuracy and usage environment factors such as fluctuating background light.

Readout time=

1

Clock pulse frequency

× Horizontal timing clock × Number of vertical pixels

=Time per clock (Readout time per pixel) × Horizontal timing clocks × Number of vertical pixels

Calculation example of readout time (clock pulse frequency: 5 MHz, horizontal timing clocks: 208, number of vertical pixels: 128)

Readout time=

1

× 208 × 128

=200 [ns] × 208 × 128

=5.324 [ms]

When operating in non-destructive readout mode:

Time per frame = Integration time + (Readout time × Non-destructive readout count)

It is possible to read out only the signal level without reading out the rest level signal. However, noise will increase because the pixel reset

noise cannot be removed. Sensitivity variations in the photosensitive area will also increase because the fixed pattern noise in each pixel

cannot be removed either.

Calculation method of frame rate