PT2212 PTC | Alldatasheet
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Technical content
Tel : 886-2-29162151 Fax : 886-2-29174598 URL: http://www.princeton.com.tw Infrared Remote Control Transmitter PT2212 PT2212 v1.0 Page 1 Updated June 1998 Princeton Technology Corp.
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
Tel : 886-2-29162151 Fax : 886-2-29174598 URL: http://www.princeton.com.tw Infrared Remote Control Transmitter PT2212 PT2212 v1.0 Page 2 Updated June 1998 Princeton Technology Corp. BLOCK DIAGRAM PIN CONFIGURATION OSCILLATION CIRCUIT OUTPUT CIRCUIT DIVIDING CIRCUIT TIMING CIRCUIT SYSTEM CODE LATCH CIRCUIT KEY INPUT CIRCUIT OSCO OSCI CARRIER GENERATING CIRCUIT CONTROL CIRCUIT DATA REGISTER KEY SCAN OUTPUT CIRCUIT SEL KI0 KI1 KI2 KI3 KO0 KO1 KO2 KO3 KO4 KO5 KO6 KO7 VSS VDD DOUT LMP
Tel : 886-2-29162151 Fax : 886-2-29174598 URL: http://www.princeton.com.tw Infrared Remote Control Transmitter PT2212 PT2212 v1.0 Page 3 Updated June 1998 Princeton Technology Corp. APPLICATION CIRCUIT PT2212 SEL KO0 KI0 KO1 KI1 KO2 KI2 KO3 KI3 DOUT VDD NC OSC1OSC2 VSS KO4 KO5 KO6 KO7 LMP
455 KHz
VDD=3V 1K Ohms
2 Ohms
Note: KI0 to KI3 KO0 to KO7 Key Matrix Transmission Indicator LED Wired (one place for input line) n n=1 to 32 IR LED