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S11454EJ3V0DS00_15 Datasheet, PDF (12/22 Pages) Renesas Technology Corp – 2660 PIXELS CCD LINEAR IMAGE SENSOR
μ PD3734A
DEFINITIONS OF CHARACTERISTIC ITEMS
1. Saturation voltage: Vsat
Output signal voltage at which the response linearity is lost.
2. Saturation exposure: SE
Product of intensity of illumination (IX) and storage time (s) when saturation of output voltage occurs.
3. Photo response non-uniformity: PRNU
The peak/bottom ratio to the average output voltage of all the valid pixels calculated by the following formula.
PRNU (%) =
Σ VMAX. or VMIN.
1
n
n
Vj
j=1
−1
× 100
n : Number of valid pixels
Vj : Output voltage of each pixel
Register Dark
DC level
VMIN.
VMAX.
∑ 1 n
n Vj
j=1
4. Average dark signal: ADS
Average output signal voltage of all the valid pixels at light shielding. This is calculated by the following formula.
2660
∑ dj
j=1
ADS (mV) =
2660
dj : Dark signal of valid pixel number j
5. Dark signal non-uniformity: DSNU
Absolute maximum of the difference between ADS and voltage of the highest or lowest output pixel of all the valid
pixels at light shielding. This is calculated by the following formula.
DSNU (mV): maximum of | dj – ADS | j = 1 to 2660
dj : Dark signal of valid pixel number j
Vout
Register Dark
DC level
ADS
DSNU
10
Data Sheet S11454EJ3V0DS