UPD8873 Datasheet, PDF (20/32 Pages) NEC – (5400 ®5400) PIXELS x 3 COLOR CCD LINEAR IMAGE SENSOR

µ PD8873
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 (lx) and storage time (s) when saturation of output voltage occurs.
3. Photo response non-uniformity : PRNU
The output signal non-uniformity of all the valid pixels when the photosensitive surface is applied with the light
of uniform illumination. This is calculated by the following formula.
PRNU (%) = ^{∆ x} × 100
x
∆ x : maximum of xj − x 
10800
Σ ^xj
j=1
x=
10800
xj : Output voltage of valid pixel number j
VOUT
Register Dark
x
DC level
∆x
4. Average dark signal : ADS
Average output signal voltage of all the valid pixels at light shielding. This is calculated by the following
formula.
10800
Σ ^dj
j=1
ADS (mV) =
10800
dj : Dark signal of valid pixel number j
20
Data Sheet S16614EJ2V0DS