TSL260R, TSL261R, TSL262R

INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS

TAOS049E −SEPTEMBER 2007

9

The LUMENOLOGY r Company

r

r

Copyright E 2007, TAOS Inc.

www.taosinc.com

APPLICATION INFORMATION

NOTE A: Simple transmission of audio signal over short distances (<10 ft). Applications include wireless headphones, wireless-telephone

headset, and wireless-headset intercom.

IN

OUT

COM

6 V

U2

TLE2426

C1

1 μF

+

R2

20 kΩ

_

+

D1

D2

R3

40 Ω

Q1

2N3904

R1

10 kΩ

Audio

Input

6 V

6 V

IN

OUT

COM

9 V

U2

TLE2426

_

+

9 V

C2

47 μF

R1

100 kΩ

C1

100 pF

R2

10 kΩ

IN

OUT

COM

9 V

U1

TSL261R

Sensor

C3

1 μF

3

2

6

7

4

1

3

2

U3A

NE5534

U1

TLC271

2

3

7

5

4

8

1

6

TRANSMITTER

RECEIVER

+

+

VOL

Output

(to headphones)

Figure 12. IR Voice-Band Audio Link