Princeton Technology Corp. Tel: 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Infrared Remote Control Transmitter PT2221/2 DESCRIPTION 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 (VDD=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 Tel: 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2221/2 PIN CONFIGURATION ORDER INFORMATION Valid Part Number PT2221-001 PT2221-002 PT2222-001 PT2222-002 PT2221/2 v 3.4 Package 20 Pins, SO 20 Pins, SO 24 Pins, SO 24 Pins, SO Page 2 Revised Oct. 2000 Tel: 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Princeton Technology Corp. Infrared Remote Control Transmitter PT2221/2 PT2221 APPLICATION CIRCUIT 1 3V 470 10 F + 16 V 200 pf 200 pf IR LED LED 455 KHz OSCI OSCO VDD LMP REM SEL KI0 PT2221 KI1 KI2 KI3 KI/O0 KI/O1 KI/O2 KI/O3 KI/O4 KI/O5 Vss CCS KI/O6 KI/O7 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 Tel: 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Princeton Technology Corp. Infrared Remote Control Transmitter PT2221/2 PT2222 APPLICATION CIRCUIT 3V 1 + 10 F 16 V 200 pf 200 pf IR LED 470 LED 455 KHz KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7 OSCI KI/O0 For Custom Code Selection OSCO VDD LMP REM SEL PT2222 Vss CCS KI/O1 KI/O2 KI/O3 KI/O4 KI/O5 KI/O6 KI/O7 100K IN4148 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