TC215 Datasheet, PDF (10/19 Pages) Texas Instruments – 1024- × 1024-PIXEL CCD IMAGE SENSOR

TC215
1024- × 1024-PIXEL CCD IMAGE SENSOR
SOCS014B – AUGUST 1989 – REVISED DECEMBER 1991
spurious nonuniformity specification
The spurious nonuniformity specification of the TC215 CCD grades – 30 and – 40 is based on several sensor
characteristics:
• Amplitude of the nonuniform line or pixel
• Polarity of the nonuniform pixel
– Black
– White
• Nonuniform line or pixel count
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 TC215 is as follows (CCD video-output signal is 50 mV ±10 mV):
NONUNIFORMITY TYPE
Line
White spot (40°C)
White spot (25°C)
Black spot (% of total illumination)
Total number of nonuniformities
TC215- 30
TC215 - 40
Maximum amplitude = 1.4 mV
Number with amplitude greater than 1 mV is ≤ 5
Maximum amplitude = 25 mV
Maximum amplitude = 15 mV Maximum amplitude = 20 mV
Number with amplitude greater than 10 mV = B
Maximum amplitude = 25%
Maximum amplitude = 30%
Number with amplitude greater than 10% = C
B + C < 20
mV
Amplitude
% of Total
Illumination
t
Figure 11. Pixel Nonuniformity,
Dark Condition
t
Figure 12. Pixel Nonuniformity,
Illuminated Condition
2-10
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