UPD8870 Datasheet, PDF (13/24 Pages) NEC – 10680 PIXELS × 3 COLOR CCD LINEAR IMAGE SENSOR

µ PD8870
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 10680
dj : Dark signal of valid pixel number j
VOUT
Register Dark
DC level
ADS
DSNU
6. Output impedance : ZO
Impedance of the output pins viewed from outside.
7. Response : R
Output voltage divided by exposure (lx•s).
Note that the response varies with a light source (spectral characteristic).
8. Image lag : IL
The rate between the last output voltage and the next one after read out the data of a line.
φ TG
Light
ON
OFF
VOUT
IL (%) = ^V1 × 100
VOUT
V1
VOUT
Data Sheet S15328EJ2V0DS
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