TSL230RD, TSL230ARD, TSL230BRD

PROGRAMMABLE LIGHT-TO-FREQUENCY CONVERTERS

TAOS054N − OCTOBER 2007

3

The LUMENOLOGY r Company

r

r

Copyright E 2007, TAOS Inc.

www.taosinc.com

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

High-level output voltage

4

4.5

V

Low-level output voltage

0.25

0.4

V

High-level input current

5

μA

Low-level input current

5

μA

I

Supply current

Power-on mode

2

3

mA

Supply current

Power-down mode

5

12

μA

F.S.

Full-scale frequency (See Note 2)

S0=S1=H, S2=S3=L

1.1

MHz

Temperature coefficient of output frequency

λ ≤ 700 nm (See Note 3)

± 200

ppm/°C

Supply voltage sensitivity

± 0.5

%/ V

NOTES: 3. Full-scale frequency is the maximum operating frequency of the device without saturation.

4. The temperature coefficient of output frequency is measured with constant irradiance as the temperature is varied between −25°C

and 70°C. The constant irradiance is sufficiently high that the output frequency is much greater than the dark frequency over the

entire temperature range.

noted)

PARAMETER

TEST CONDITIONS

TSL230RD

TSL230ARD

TSL230BRD

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

MIN

TYP

MAX

UNIT

S0 = S1 = H,

S2 = S3 = L

80

100

120

85

100

115

90

100

110

S1 = H,

S0 = S2 = S3 = L

8

10

12

8.5

10

11.5

9

10

11

Output frequency

S0 = H,

S1 = S2 = S3 = L

0.8

1

1.2

0.85

1

1.15

0.9

1

1

kHz

Output frequency

S0 = S1 = S2 = H,

S3 = L

40

50

60

42.5

50

57.5

45

50

55

kHz

S0 = S1 = S3 = H,

S2 = L

8

10

12

8.5

10

11.5

9

10

11

S0 = S1 = S2 = S3 = H

0.8

1

1.2

0.85

1

1.15

0.9

1

1.1

Dark frequency

S2 = S3 = L

0.4

10

0.4

10

0.4

10

Hz

Responsivity

S0 = S1 = H,

S2 = S3 = L

0.79

0.79

0.79

kHz/

(μW/

t

Output pulse

S2 = S3 = L

125

600

125

600

125

600

ns

Output pulse

duration

S2 or S3 = H

s

± 0.1%

± 0.1%

± 0.1%

Nonlinearity

(See Notes 4 and 5)

± 0.2%

± 0.2%

± 0.2%

%F.S.

(See Notes 4 and 5)

± 0.5%

± 0.5%

± 0.5%

%F.S.

Recovery from power down

100

100

100

μs

Step response to full-scale step input

1 pulse of new frequency plus 1 μs

Response time to programming change

2 periods of new principal frequency plus 1 μs (Note 6)

Response time to output enable (OE)

50

150

50

150

50

150

ns

6. Nonlinearity test condition: S0 = S1 = H, S2 = S3 = L.

7. Principal frequency is the internal oscillator frequency, equivalent to divide-by-1 output selection.