9913 n. Chr.æ ̄ä ̧æ¬3/4å®æ'çç'æ¥æ°åé¢ç
åæå ̈(DDS)ï1/4ä ̧ä ̧ºæ»¡è¶³ä3/4¿æºå1/4ãææå1/4åçμæ± ä3/4çμè®3/4å¤ä ̧¥æ 1/4çåèéå¶èè®3/4计ãè ̄¥å ̈件å ç1/2®ä ̧ä ̧ª10ä1/2æ°æ ̈¡è1/2¬æ¢å ̈(DAC)ï1/4æé«éæ ·éçä ̧º250 MSPSãå®éç ̈å è¿çDDSææ ̄ï1/4è¿åé«éãé«æ«æ§è1/2DACï1/4ææå®æ'çæ°åå ̄ç1/4ç ̈é«é¢åæå ̈ï1/4è1/2å¤äº§çæé«100 MHz.çé¢çæ·åæ ̈¡æè3/4åºæ£å1/4¦æ³¢ã
AD9913æä3/4å¿«éè·³é¢åç²3/4å ̄è°è°åè3/4 ̈çãå®è¿å ·æè ̄å¥1/2çç ̧ä1/2å移æ§å¶åè3/4 ̈çãæ§å¶åéè¿ä ̧²è¡æ并è¡I/Oç« ̄å£è1/21/2å ¥AD9913ãå®è¿æ ̄æå ̈ç ̈æ·å®ä¹ç线æ§æ«ææ ̈¡å1/4ä ̧å·¥ä1/2ï1/4å ̄产çé¢ççé«åº¦çº¿æ§æ«ææ³¢å1/2¢ãä ̧ºäºæ ̄æå¤ç§äº§ç³»ç»æ¶éçæ¹æ³ï1/4AD9913ä ̧ä» å ç1/2®æ ̄è¡å ̈ï1/4å ̄以å©ç ̈ç®åæ¶ä1/2ä1/2ä ̧ºé¢çåèï1/4è¿å ç1/2®é«éæ¶éåé¢å ̈ï1/4å ̄以å°åèæ¶éé¢çè1/2¬åä ̧ºæ'ä ̧ªç³»ç»æ¶ééçãä ̧ºäºéâ1/2åèï1/4AD9913çè® ̧å¤ç¬ç«æ ̈¡åå ̄å ̈ä ̧å·¥ä1/2æ¶å ³æã
AD9913çå·¥ä1/2æ ̧©åº¦èå'ä ̧ºâ40°Cè³+85°Cæ©å±å·¥ä ̧æ ̧©åº¦èå'ã
åºç ̈
⢠ä3/4¿æºå1/4åææå1/4è®3/4å¤
⢠LOæ·åé¢çåæ
⢠å ̄ç1/4ç ̈æ¶éåçå ̈
⢠é·è3/43/4åæ«æç³»ç»ç»çFM线æ§è°é¢æº