DRAWN BY: DAVE JOHNSON

G

D

S

D

G

S

+3V

+3V

+3V

+3V

+3V

+

STANDBY CURRENT = 1uA

+3V

40KHz TV-VCR LIGHT SOURCE REPEATER

+3V

LIGHT OUTPUT

PLACE DETECTOR AT

END OF REMOTE

40KVCR.DSN

A

DAVID JOHNSON AND ASSOCIATES

TV-VCR REMOTE REPEATER

40KHz MODULATED LIGHT SOURCE

A

1

1

Sunday, June 04, 2000

Size

Document Number

Rev

Date:

Sheet

of

2 AA CELLS

12

IR LED

+

220uF

12

ZVN4306

TOP VIEW

70mA

70mA

IR LED

74C14

11

10

13

12

9

8

74C14

3

4

5

6

0.001uF

470pF

4.7M

15mH

100K

PHOTODIODE

74C14

1

2

4.7M

2.2K

0.01