PD8835_15 Datasheet, PDF (17/24 Pages) Renesas Technology Corp – 7300 PIXELS × 3 COLOR CCD LINEAR IMAGE SENSOR

μ PD8835
10. Random noise (Light shielding): σdark
Light shielding random noise σdark is defined as the standard deviation of a valid pixel output signal with 100 times
(= 100 lines) data sampling at dark (light shielding). This is measured by the DC level sampling of only the signal
level, not by CDS (Correlated Double Sampling).
σ (mV) =
100
Σ ^{(Vi – V)2}
i=1
100
100
Σ ,
V
=
1
100
Vi
i=1
Vi : A valid pixel output signal among all of the valid pixels for each color.
VOUT
V1
line1
V2
line2
V100
line100
11. Total transfer efficiency: TTE
TTE is the total transfer rate of CCD analog shift register. This is calculated by the following.
TTE (%) = (1 - Vb/Average output of all the valid pixels) × 100
Vb
3747
Vb: The spilt pixel output (3747th pixel)
3743
3745
Data Sheet S20220EJ1V0DS
15