S12744EJ4V0DS00_15 Datasheet, PDF (17/26 Pages) Renesas Technology Corp – 5000 PIXELS CCD LINEAR IMAGE SENSOR

μ PD3739
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).
Data Sheet S12744EJ4V0DS
15