724 n. Chr.æ ̄ä ̧æ¬3/4ä1/2ææ¬RGBè1/2¬NTSC/PALç1/4ç å ̈ï1/4å ̄å°çº¢è²ã绿è²åèè²åéä¿¡å·è1/2¬æ¢ä ̧ºç¬¦åNTSCæPALæ åçç ̧åºäº 度ï1®/4åºå ̧¦æ ̄å¹ ï1/4åè²åº¦ï1/4å ̄ è1/21/2æ³¢æ ̄å¹ ä ̧ç ̧ä1/2ï1/4ä¿¡å·ãåæ¶ï1/4è¿ä ̧¤è· ̄è3/4åºå并以æ3/4å¤åè§é¢è3/4åºãææä ̧è· ̄è3/4åºå ̄以åæ¶é©±å ̈75 Ωãååç« ̄æ¥çμç1/4ãææé»è3/4è3/4å ¥åä ̧ºCMOSå 1/4容åãè ̄¥è ̄çéç ̈+5 Våçμæºä3/4çμï1/4æ éå¤é ̈延è¿çº¿æ滤波å ̈ãä ̧ä1/2¿ç ̈æ¶ï1/4è ̄¥å ̈件å ̄以 å ³æã
724 n. Chr.æ¥åFSCæ4FSCæ¶éãå1/2æ æ¶éå ̄ç ̈æ¶ï1/4ä ̧ä ̧ªä1/2ææ¬å¹¶è¡è°æ ̄æ¶ä1/2ï1/43.58 MHz (NTSC)æ4.43 MHz (PAL)ï1/4ä ̧è ̄¥å ̈件ççå æ ̄è¡å ̈ä ̧èμ ·å ̄产çå¿ è¦çå ̄è1/21/2æ³¢æ¶éãAD724è¿æ¥åå¤é ̈è§é¢æºæä3/4çå ̄è1/21/2æ³¢æ¶éã
ä ̧å3/4å1/2¢æ§å¶å ̈çæ¥å£ååç®åï1/4çå é»è3/4âXNORâæ¥åå ̄ç ̈çåç'åæ¥(VSYNC)åæ°'å¹³åæ¥(HSYNC)ä¿¡å·ï1/4并å ̈çå çæå¤ååæ¥(CSYNC) ä¿¡å·ãå¦æå ̄ç ̈ï1/4AD724ä¹è1/2æ¥åæ åCSYNCä¿¡å·ï1/4æ¹æ³æ ̄å°VSYNCä ̧+5 Vç ̧è¿ï1/4并å°CSYNCæ1/2å äºHSYNCå1/4èãè ̄¥å ̈件å ç1/2®è§£ç é»è3/4ï1/4å ̄è ̄å«ææçæ°'å¹³åæ¥èå²ï1/4以ä3/4¿æ£ç¡®æå ¥çªåèå²ã
UåVä ̧¤ç§è²åº¦æ»¤æ³¢å ̈ç延è¿ç±Yä¿¡å·è· ̄å3/4ä ̧çççå éæ ·æ°æ®å»¶è¿çº¿å¹é ãä ̧ºé²æ¢æ·· å ï1/4è ̄¥å»¶è¿çº¿ä¹åæ¥ä ̧ä ̧ª5 MHzåç1/2®æ»¤æ³¢å ̈ï1/4ä¹åæ¥ä ̧ä ̧ª5 MHzåç1/2®æ»¤æ³¢å ̈ï1/4以ä3/4¿æå¶è3/4åºä ̧çè°æ³¢ãè¿äºä1/2é滤波å ̈ç»è¿ä1/4åï1/4èå²è¿å²æå°ãæ'ä1/2亮度延è¿ç ̧å ̄¹äºè²åº¦å
·ææ¶åºä ̧è'æ§ï1/4å ̄ç'æ¥è3/4å ¥çμè§åºå ̧¦ä ̧ãAD724éç ̈èç空é'çSOICå°è£ ï1/4é¢å®æ ̧©åº¦èå'ä ̧º0°Cè³+70°Cåç ̈æ ̧©åº¦èå'ã