upd8670a Renesas Electronics Corporation., upd8670a Datasheet - Page 16

• Manufacturer Part Number: upd8670a
• Description: 7400 Pixels Ccd Linear Image Sensor
• Manufacturer: Renesas Electronics Corporation.

16
5. Dark signal non-uniformity : DSNU
6. Output impedance : Z
7. Response : R
8. Image lag : IL
9. Total transfer efficiency : TTE
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.
Impedance of the output pins viewed from outside.
Output voltage divided by exposure (lx•s).
Note that the response varies with a light source (spectral characteristic).
The rate between the last output voltage and the next one after read out the data of a line.
The total transfer rate of CCD analog shift register. This is calculated by the following formula, it is difined by each
output.
TTE (%) = (1 − V
DSNU (mV): maximum of d
IL (%) =
φ
Light
V
V
V
Register dark
OUT
TG
OUT
1
V
V
a−1
OUT
DC level
× 100
b
/ average output of all the valid pixels) × 100
O
V
a
d
j
j
: Dark signal of valid pixel number j
− ADS 
ON
j = 1 to 7400
V
b
Data Sheet S17147EJ2V0DS
V
V
V
a−1
a
b
: The last pixel output (Odd pixel: 7539th pixel)
: The spilt pixel output (Odd pixel: 7541st pixel)
: The last pixel output − 1 (Odd pixel: 7537th pixel)
V
OUT
OFF
V
1
ADS
µ
DSNU
PD8670A