TT6221-1

www.DataSheet4U.com TT1589(TT6221/TT6222) Consumer TT6221-1 & TT6222-1 REMOTE CONTROL TRANSMITTER General Description TT6221-1 and TT6222-1 are high performance remote control transmitter COMS IC¡A it is specially designed for use on infrared remote control applications¡C The custom codes (Max.) of TT6221-1 and TT6222-1 are available by setting external diodes and resistors¡C The transmission code consists of “ leader pulse “¡B ” 16 bits custom code “ and ” 16 bits data code “¡C Feature Description X X X X X X X X High performance CMOS technology Low power consumption ( VDD = 2.0 ¡ã 3.3 V ) TT6221-1 : 32 function keys and 3 double action keys and 64 + 6 function codes are available ( Using D7 pin ) TT6222-1 : 64 function keys and 3 double action keys and 128 + 6 function codes are available ( Using D7 pin ) PPM ( Pulse Position Modulation ) code method Ceramic resonator frequence 455 KHz DOUT with a 38 KHz carrier for IR medium Custom codes can be selected ( Using external diodes and resistors ) Block Diagram X1 X2 DOUT LED Oscillator Divider Data select & Buffer R1 R8 Keyboard Matrix & Gate Circuit Data ROM & Registers Timing Generate Counter control Sync. circuit Binary Detector C1 C8 AIN D7 VDD VSS e gPa 1 of 11 Ver.¡G 1.0 www.DataSheet4U.com TT1589(TT6221/TT6222) Consumer Package configuration TT6221 1 2 3 4 5 6 7 8 9 10 R1 R2 R3 R4 DOUT VDD D7 X2 X1 VSS TT6221-1 AIN C1 C2 C3 C4 C5 C6 C7 C8 LED 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 1...