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2015-01-24
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Abstract
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µÚ 1 Õ Ð÷ ÂÛ 1
1.1 ¿ÎÌâ±³¾° 1
1.2 ·¢Õ¹¸Å¿ö 1
1.3 ¸÷ÔªÆ÷¼þÔÀí¼°Ó¦Óà 1
1.3.1 SPI½Ó¿Ú 1
1.3.2 Êý×Öʽͬ²½·¢ËÍÆ÷ 3
1.3.3 NE5532ÔËËã·Å´óÆ÷ 4
1.3.4 ±äѹÆ÷ 11
1.3.5 MAX532D/A±ä»»Æ÷ 14
1.3.6 ±¾ÎÄÖ÷ÒªÑо¿ÄÚÈÝ 17
µÚ 2 Õ ±¾¿ÎÌâµÄ¾ßÌåÑо¿¹ý³Ì¼°ÑéÖ¤ 18
2.1ÒýÑÔ 18
2.2 SPI½Ó¿ÚµÄ¾ßÌåÉè¼Æ¹ý³Ì¼°ÑéÖ¤ 18
2.2.1ͬ²½·¢ËÍÆ÷µÄÊý×ÖÄ£ÐÍ 18
2.2.2µç·Éè¼Æ 18
2.2.3ʵÑéÑéÖ¤ 24
½á ÂÛ 26
Ö л 27
²Î¿¼ÎÄÏ× 28
¸½Â¼1 Ó¢ÎÄÎÄÏ× 29
¸½Â¼2 ÎÄÏ×ÒëÎÄ 37
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