Princeton Technology Corp.
Remote Control Encoder
Tel: 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT2265
PT2265 is a remote control encoder paired with PT2275 utilizing CMOS
Technology. Using a special coding technique, PT2265 increases noise immunity
to a very great extent and can perform one bit error check. It is housed in 14-pins,
DIP Package and has a maximum of eight (8) input channels. Its high
performance features make PT2265 a MUST in every fan and other electrical
home appliance remote control application.
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CMOS Technology
Low Power Consumption
Very High Noise Immunity
Operating Voltage : Vcc = 2.2 ~ 5.0 Volts
Transmits signals to a maximum of 8 channels
Start Word Custom Code Options Available (Please contact PTC for details.)
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Fan Remote Control
Air Cleaner
Humidifier
Heater
Note: PT2265 has been updated and can be identified by the “B” mark on the
lower right hand corner of the IC’s topcode (beside the date code). Please refer to
the diagram on the Order Information Section The difference between the old and
new version is the external application circuit in the OSC1 and OSC2 pins. (see
Oscillator Section)
PT2265 v 2.3
Page 1
Revised Sept. 1998
Princeton Technology Corp.
Remote Control Encoder
Tel: 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT2265
Part Number
PT2265
Package
14 Pins, DIP
The New Version of PT2265 is identified by the “B” Mark on the lower right hand
corner of the topcode. Please refer to the following diagram:
PT2265 v 2.3
Page 2
Revised Sept. 1998
Princeton Technology Corp.
Remote Control Encoder
Tel: 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT2265
PT2265 New Version (with “B” mark near Date Code) IR Transmitter Application
Circuit
3V
+
+
4 7 u F (see L a y o u t N ote )
I1
I2
I3
I4
I5
I6
I7
V cc
455 K H z
OSC1
OSC2
220 pF
NC
TXOUT
IR L E D
V ss
I8
4.7 O h m
220 pF
P T 226 5
1K
PT2265 Old Version IR Transmitter Application Circuit
+
3V
+
45 5 K H z
47 u F (see L a you t N ote)
I1
I2
I3
I4
I5
I6
I7
Vcc
O SC 1
10 M
O SC 2
NC
TX OUT
IR L E D
V ss
I8
10 0p F
4.7 O h m
P T 2265
PT2265 v 2.3
Page 3
1K
Layout Note: Place the 47uF Capacitor as close as possible to the PT2265's Vcc Pin & GND.
Revised Sept. 1998