upd3728 Renesas Electronics Corporation., upd3728 Datasheet - Page 16

• Manufacturer Part Number: upd3728
• Description: 7300 Pixels X 3 Color Ccd Linear Image Sensor
• Manufacturer: Renesas Electronics Corporation.

16
9.
10. Total transfer efficiency : TTE
11. 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. This is calculated by the following formula.
The total transfer rate of CCD analog shift register. This is calculated by the following formula, it is defined by
each output.
TTE (%) = (1 − V
Random noise 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 calculated by the following formula.
This is measured by the DC level sampling of only the signal level, not by CDS (Correlated Double Sampling).
RI (%) =
σ
(mV) =
2
n
V
j = 1
∑
100
a−1
i = 1
n
2
Σ
b
(V
σ
1
n
/ average output of all the valid pixels) × 100
(V
100
2j –1
j = 1
∑
i
n
– V)
V
V
– V
a
j
2j
2
V
)
OUT
V
i
, V =
n
V
: A valid pixel output signal among all of the valid pixels for each color
j
× 100
: Number of valid pixels
: Output voltage of each pixel
100
V
1
Data Sheet S15417EJ3V0DS
b
100
i = 1
Σ
V
V
i
V
V
V
V
V
100
a−1
a
b
1
2
: The last pixel output (Odd pixel: 7433rd pixel)
: The spilt pixel output (Odd pixel: 7435th pixel)
: The last pixel output − 1 (Odd pixel: 7431st pixel)
line 1
line 2
line 100
µ
PD3728DZ