Princeton Technology Corp.
Infrared Remote Control Transmitter
DESCRIPTION
Tel: 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT2221/2
The PT2221 and PT2222 are remote control transmitters utilizing CMOS
Technology specially designed for use on infrared remote control applications.
They are pin-to-pin compatible with NEC
µPD6121
and
µPD6122
respectively.
PT2221 is packaged in 20 pins SO and capable of controlling 32 functions and 3
double keys. PT2222, on the other hand, is housed in 24 pins SO and capable of
controlling 64 function keys and 3 double keys. PT2221/2 may be paired with
PT2225 to construct a powerful remote control system.
FEATURES
❒
CMOS Technology
❒
Low Power Consumption (V
DD
=2.0
∼
5.5V)
❒
Pin-to-Pin Compatible with
µPD6121/µPD6122
❒
Using SEL pin, PT2221 can support 64+6 function codes
❒
Using SEL pin, PT2222 can support 128 + 6 function codes
❒
Customer Code can be selected (please contact PTC for details)
APPLICATIONS
❒
❒
❒
❒
❒
❒
❒
❒
❒
Audio Equipment
Television (TV)
Cable TV Tuner
Video Cassette Recorder (VCR)
Cassette Deck
Air Conditioner
Video Compact Disk (VCD)
DVD ROM/Player
Moniputer / Multi-Media Personal Computer System
PT2221/2 v 3.4
Page
1
Revised Oct. 2000
Princeton Technology Corp.
Infrared Remote Control Transmitter
PIN CONFIGURATION
Tel: 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT2221/2
ORDER INFORMATION
Valid Part Number
PT2221-001
PT2221-002
PT2222-001
PT2222-002
Package
20 Pins, SO
20 Pins, SO
24 Pins, SO
24 Pins, SO
PT2221/2 v 3.4
Page
2
Revised Oct. 2000
Princeton Technology Corp.
Infrared Remote Control Transmitter
PT2221 APPLICATION CIRCUIT
Tel: 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT2221/2
3V
10 F
+
16 V
200 pf
455 KHz
OSCI
KI
0
KI
1
KI
2
KI
3
KI/O
0
KI/O
1
OSCO
V
DD
LMP
REM
200 pf
LED
470
1
IR
LED
SEL
PT2221
KI/O
2
KI/O
3
KI/O
4
KI/O
5
KI/O
6
Vss
CCS
KI/O
7
For Custom Code
Selection
IN4148
100K
Note: The Vcc and Vss Terminals must be “SHORT” before the batteries are loaded to the
transmitter handset to insure that PT2221 Power On Reset Function will operate properly.
PT2221/2 v 3.4
Page
3
Revised Oct. 2000
Princeton Technology Corp.
Infrared Remote Control Transmitter
PT2222 APPLICATION CIRCUIT
3V
+
200 pf
200 pf
455 KHz
KI
0
KI
1
KI
2
KI
3
KI
4
KI
5
KI
6
KI
7
OSCI
OSCO
V
DD
LMP
10 F
16 V
LED
470
Tel: 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT2221/2
1
IR
LED
REM
SEL
Vss
CCS
PT2222
KI/O
1
KI/O
2
KI/O
3
KI/O
4
KI/O
5
KI/O
6
KI/O
0
KI/O
7
For Custom Code
Selection
IN4148
100K
Note: The Vcc and Vss Terminals must be “SHORT” before the batteries are loaded to the
transmitter handset to insure that PT2222 Power On Reset Function will operate properly.
PT2221/2 v 3.4
Page
4
Revised Oct. 2000
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