723 n. Chr.æ ̄ä ̧æ¬3/4ä1/2ææ¬RGBè1/2¬NTSC/PAL
ç1/4ç å ̈ï1/4å ̄å°æ ̈¡æ红è²ã绿è²åèè²åéä¿¡å·è1/2¬æ¢ä ̧ºç ̧åºç亮度åè²åº¦ä¿¡å·ï1/4以å ̈NTSCæPALçμè§ä ̧æ3/4示ãäº åº¦®(Y)åè²åº¦(C)ä¿¡å·å ̄åå«ç¬ç«ç ̈äºS-è§é¢ï1/4æè å并ç ̈äºå¤åè§é¢(CV)ãææè3/4åºåå ̄ç¬ç«æ3/4ï1/4并éå ̄¹é©±å ̈75 Ωè'è1/21/2è¿è¡äºä1/4åãä ̧ºéä1/2åèï1/4è ̄¥å ̈件ä1/2¿ç ̈ææºç« ̄é»æã
æºè1/2è'è1/21/2æ£æμç¹æ§ä1/4å ³ææªä1/2¿ç ̈çè3/4åºï1/4并å ̄ç ̈æ¥çæ§å¤é ̈çμè§ä¿¡å·çææ ï1/4ä»èæ ̄æå³æå³ç ̈æä1/2ãæ¤å¤ï1/4å1/2RGBçè§å ̈æå1/4æ¶ ï1/4è3/4å ¥ç« ̄çé»è3/4æ§å¶ä ̧è· ̄å1/4å ³å ̄解³æä3/4ä ̧åè'è1/21/2æ¡ä»¶çåºç ̈é®é¢ãå1/2RGBçè§å ̈ä ̧åå ̈æ¶ï1/4ç ̈æ·å ̄以ä1/2¿è1/2RãGåBç« ̄é»æãå1/2RGBçè§å ̈å·¥ä1/2æ¶ï1/4è¿ä ̧解å³æ¹æ¡å ̄ç¡®ä¿è§é¢å ̧¦å®1/2ä ̧ä1/4åçä»»ä1/2æèã
å ̈PCåºç ̈ä ̧ï1/4å3/4å1/2¢æ§å¶å ̈æä3/4éªç滤波å ̈æ ̄æï1/4并ä ̧å ̄以ç'æ¥è®¿é®å åãè§é¢æDVD以å¤ç ̈éæéçæ¬ æ«æè¡¥å¿ï1/4åå ̄éè¿éæ©éå1/2çRGBè3/4åºæ¶éååæ¥é'éäºä»¥æ ̄æã
å ̄éç亮度é·æ³¢å ̈(YTRAP)å ̄ç ̈æ¥åå°Yä¿¡å·ä ̧çå ̄è1/21/2æ³¢é¢çä¿¡æ ̄æå1/4èμ·çä ̧²è²ä1/4ªåã
AD723æä3/428å1/4èTSSOPå°è£ ï1/4å ̄éç ̈2.7 Vè³5.5 Vçμæºä3/4çμã