KXD6222&KXD6221 : KXD6222 KXD6221 IC(COMS IC), 。“”(leader pulse),“16” “16 ”。 KXD6222 KXD6221 。 KE XIN DA Electronics Co., LTD.
: CMOS (VDD:2.0 ~3.3 V) KXD6221:323 , 64+ 6 (D7) KXD6222:643 ,128+ 6 (D7) PPM (Pulse Position Modulation) 455 KHz IR 38 Khz () : 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 D