TSL238T

HIGH-SENSITIVITY

LIGHT-TO-FREQUENCY CONVERTER

TAOS080E − JUNE 2007

4

r

r

Copyright E 2007, TAOS Inc.

The LUMENOLOGY r Company

www.taosinc.com

TYPICAL CHARACTERISTICS

Figure 5

NORMALIZED OUTPUT VOLTAGE

vs.

ANGULAR DISPLACEMENT

Q − Angular Displacement − °

0

0.2

0.4

0.6

0.8

1

−90

−60

−30

0

30

60

90

-Q

+Q

Figure 6

NORMALIZED OUTPUT VOLTAGE

vs.

ANGULAR DISPLACEMENT

Q − Angular Displacement − °

0

0.2

0.4

0.6

0.8

1

−90

−60

−30

0

30

60

90

-Q

+Q

Figure 7

DARK FREQUENCY

vs.

FREE-AIR TEMPERATURE

−7.5

−4.5

−1.5

1.5

4.5

7.5

−25

−515

35

55

75

−6.0

−3.0

0.0

3.0

6.0

NOTE A

NOTE A: Internal offsets that result in dark frequency can be both positive and negative. The dashed line represents the case of negative offset

in which an equivalent amount of light signal is required to obtain a non-zero output frequency.