COLUMN AMPLITUDE, x (mV)

TC271

1080

× 580-PIXEL CCD IMAGE SENSOR

SOCS039A – JANUARY 1994 – REVISED JUNE 1996

14

POST OFFICE BOX 655303

spurious-nonuniformity specification

The spurious-nonuniformity specification of the TC271 CCD grades – 30 and – 40 is based on several sensor

characteristics:

–

Black

–

White

The CCD sensors are characterized in both an illuminated condition and a dark condition. In the dark condition,

the nonuniformity is specified in terms of absolute amplitude as shown in Figure 14. In the illuminated condition,

the nonuniformity is specified as a percentage of the total illumination as shown in Figure 15.

The nonuniformity specification for the TC271 is as follows (CCD video-output signal is 50 mV

±10 mV):

PIXEL NONUNIFORMITY

COLUMN NONUNIFORMITY

PART NUMBER

DARK CONDITION

ILLUMINATED CONDITION

PIXEL AMPLITUDE, x (mV)

% OF TOTAL ILLUMINATION

TC271-30

x

≤ 12 mV

x

≤ 10

x < 0.5 mV

TC271-40

x

≤ 15 mV

x

≤ 15

x

≤ 1mV

mV

Amplitude

t

Illumination

% of Total

t

Figure 14. Pixel Nonuniformity,

Figure 15. Pixel Nonuniformity,

Dark Condition

Illuminated Condition