Princeton Technology Corp.

Tel: 886-2-29162151

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

Remote Control Encoder

PT2265

PT2265 v 2.3

Page 3

Revised Sept. 1998

PT2265 New Version (with “B” mark near Date Code) IR Transmitter Application

Circuit

I1

I2

I3

I4

I5

I6

I7

V c c

O S C 1

O S C 2

N C

TX O U T

V ss

I 8

455 K H z

220 p F

220 p F

47u F (s e e L a y ou t N o te )

3V

1 K

4.7 O h m

IR L E D

PT 2 26 5

+

+

PT2265 Old Version IR Transmitter Application Circuit

I1

I2

I3

I4

I5

I6

I7

V c c

O S C 1

O S C 2

N C

TX O U T

V ss

I8

45 5 K H z

47 u F (see L a you t N o te )

10 M

10 0p F

1 K

4.7 O h m

IR L E D

+

3V

+

P T 22 65

Layout Note: Place the 47uF Capacitor as close as possible to the PT2265's Vcc Pin & GND.