princeton technology corp. tel: 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw infrared remote control transmitter pt2221/2 pt2221/2 v 3.4 page 1 revised oct. 2000 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 pd6121 and pd6122 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 pd6121/ pd6122 ? 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
princeton technology corp. tel: 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw infrared remote control transmitter pt2221/2 pt2221/2 v 3.4 page 2 revised oct. 2000 pin configuration order information valid part number package pt2221-001 20 pins, so pt2221-002 20 pins, so PT2222-001 24 pins, so pt2222-002 24 pins, so
princeton technology corp. tel: 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw infrared remote control transmitter pt2221/2 pt2221/2 v 3.4 page 3 revised oct. 2000 pt2221 application circuit ki ki ki ki 0 1 2 3 ki/o ki/o ki/o ki/o ki/o ki/o ki/o ki/o 0 1 2 3 4 5 6 7 pt2221 osci osco v lmp rem dd sel vss ccs 455 khz 200 pf 200 pf 3v led 470 1 ir led for custom code selection 100k in4148 + 10 f 16 v 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.
princeton technology corp. tel: 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw infrared remote control transmitter pt2221/2 pt2221/2 v 3.4 page 4 revised oct. 2000 pt2222 application circuit ki ki ki ki ki ki ki ki 0 1 2 3 4 5 6 7 ki/o ki/o ki/o ki/o ki/o ki/o ki/o ki/o 0 1 2 3 4 5 6 7 pt2222 osci osco v lmp rem dd sel vss ccs 455 khz 200 pf 200 pf 3v led 470 ir led 1 + 10 f 16 v 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.
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