upd3753 Renesas Electronics Corporation., upd3753 Datasheet - Page 8

• Manufacturer Part Number: upd3753
• Description: 2088-bit Ccd Linear Image Sensor With Peripheral Circuit
• Manufacturer: Renesas Electronics Corporation.

DEFINITIONS OF CHARACTERISTIC ITEMS
8
1. Saturation voltage : V
2. Saturation exposure : SE
3. Photo response non-uniformity : PRNU
4. Average dark signal : ADS
5. Dark signal non-uniformity : DSNU
Output signal voltage at which the response linearity is lost.
Product of intensity of illumination (lx) and storage time (s) when saturation of output voltage occurs.
The peak/bottom ratio to the average output voltage of all the valid pixels calculated by the following formula.
Average output signal voltage of all the valid pixels at light shielding. This is calculated by the following
formula.
The difference between ADS and voltage of the highest or lowest output pixel of all the valid pixels at light
shielding.
Register Dark
PRNU (%) =
ADS (mV) =
V
DC level
OUT
2088
Register Dark
j = 1
2088
Σ
V
MAX.
d
1
n
sat
DC level
j
j = 1
Σ
or V
d
n
j
V
: Dark signal of valid pixel number j
j
MIN.
− 1
× 100
Data Sheet S16546EJ2V0DS
n : Number of valid pixcels
V
j
: Output voltage of each pixel
V
MIN.
V
MAX.
1
n
j = 1
Σ
n
V
j
ADS
DSNU MIN.
DSNU MAX.
µ
PD3753