TC213

1024-

× 512-PIXEL CCD IMAGE SENSOR

SOCS013B – AUGUST 1989 – REVISED DECEMBER 1991

2-12

POST OFFICE BOX 655303

spurious nonuniformity specification

The spurious nonuniformity specification of the TC213 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 11. In the illuminated condition,

the nonuniformity is specified as a percentage of the total illumination as shown in Figure 12.

The pixel nonuniformity specification for the TC213 is as follows (CCD video-output signal is 50 mV

±10 mV):

NONUNIFORMITY TYPE

TC213-30

TC213-40

Line

Maximum amplitude = 1.4 mV

Line

Number with amplitude greater than 1 mV is

≤ 6

White spot (40

°C)

Maximum amplitude = 25 mV

Maximum amplitude = 8 mV

Maximum amplitude = 12 mV

White spot (25

°C)

Number with amplitude greater

than 6 mV = B

Number with amplitude greater

than 10 mV = B

Maximum amplitude = 20%

Maximum amplitude = 25%

Black spot (% of total illumination)

Number with amplitude greater

than 10% = C

Number with amplitude greater

than 15% = C

Total number of nonuniformities

B+C < 11

B+C < 51

mV

Amplitude

t

Illumination

% of Total

t

Figure 11. Pixel Nonuniformity,

Figure 12. Pixel Nonuniformity,

Dark Condition

Illuminated Condition