PT2212

Infrared Remote Control Transmitter Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2212 DESCRIPTION PT2212 is a remote control transmitter utilizing CMOS Technology specially designed for infrared remote control applications. PT2212 can support up to 256 command codes and is functionally compatible with TC9012. Pin assignments and application circuit are optimized for easy PCB Layout and low cost advantage. FEATURES CMOS technology Low power consumption Least external components Low voltage operation Double key operation Up to 32 function keys provided Up to 8 system codes Up to 256 command codes High efficiency transmission Transmission indication output pin provided APPLICATIONS Television VCR Video disc CD player AV controller Audio equipment PT2212 V1.1 -1- May, 2007 Infrared Remote Control Transmitter BLOCK DIAGRAM Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2212 PT2212 V1.1 -2- May, 2007 Infrared Remote Control Transmitter PIN CONFIGURATION Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2212 PIN DESCRIPTION Symbol I/O Description KI0 ~ KI3 I Key Matrix Input Pins Built-in Pull-down Resistance DOUT Remote Output Pin O The transmission pulse row modulated with carrier (38KHz duty 1/3) is outputted. Large output current may be obtained for operating infrared LED by means of driving base of NPN-Tr VDD - Positive Power Supply NC -...