UPD3739 データシートの表示（PDF） - NEC => Renesas Technology

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UPD3739

5000 PIXELS CCD LINEAR IMAGE SENSOR

NEC => Renesas Technology 

µPD3739

9. Register imbalance: RI

The rate of the difference between the averages of the output voltage of Odd and Even pixels, against the average

output voltage of all the valid pixels.

n

2

∑ 2

n

(V2j – 1 – V2j)

j= 1

RI (%) =

n

∑ 1

n Vj

j= 1

× 100

n : Number of valid pixels

Vj : Output voltage of each pixel

10. Random noise: σ

Random noise σ is defined as the standard deviation of a valid pixel output signal with 100 times (=100 lines)

data sampling at dark (light shielding).

σ (mV) =

100

∑ (Vi – V)2

i=1

100

∑ 1 100

,

V

=

100

Vi

i=1

Vi : A valid pixel output signal among all of the valid pixels

VOUT

V1

line 1

V2

line 2

V100

line 100

This is measured by the DC level sampling of only the signal level, not by CDS (Correlated Double Sampling).

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