upd3788 Renesas Electronics Corporation., upd3788 Datasheet - Page 17

• Manufacturer Part Number: upd3788
• Description: 7300 Pixels X 3 Color Ccd Linear Image Sensor
• Manufacturer: Renesas Electronics Corporation.

9.
10. Random noise:
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.
Random noise
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).
RI (%) =
(mV) =
2
n
is defined as the standard deviation of a valid pixel output signal with 100 times (=100 lines)
100
j = 1
n
2
i=1
(V
(V
100
1
n
2j – 1
V
j = 1
i
n
i
: A valid pixel output signal among all of the valid pixels for each color
– V)
V
– V
j
V
2
OUT
2j
)
n : Number of valid pixels
V
, V =
j
: Output voltage of each pixel
100
Data Sheet S14664EJ1V0DS00
100
1
100
i=1
V
V
V
V
100
1
2
i
line 1
line 2
line 100
PD3788
17