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°íÇ°°Ý ÆÄ¿ö¾ÚÇÁ LM4780 ÇÁ·ÎÁ§Æ®°¡ ½ÃÀ۵˴ϴÙ.
°ü¸®ÀÚ 2004/05/10, 01:40:37, HIT : 65536


   National Semiconductor »çÀÇ Overture Audio Power Amplifier Series Áß ÃÖ±Ù¿¡ Ãâ½ÃµÈ LM4780 ÇÁ·ÎÁ§Æ®¸¦  ÁغñÁß¿¡ ÀÖ½À´Ï´Ù. Overture IC µéÀº ±× ȸ·ÎÀÇ ´Ü¼øÇÔ°ú ÇÏÀÌ¿£µåÀûÀΠƯ¼º ¶§¹®¿¡ ¸¹Àº ÀÚÀÛÀεéÀÇ »ç¶ûÀ» ¹Þ¾Æ¿Ô°í Áö±Ýµµ ¹«»ó»ùÇÃÀ» Á¦°øÇÏ´Â NS»çÀÇ ¸¶ÄÏÆà Á¤Ã¥¿¡ ÀÇÇØ ³¯·Î ÀÌ¿ëÀÚ°¡ ´Ã¾î³ª°í ÀÖ½À´Ï´Ù. LM4780Àº ä³Î´ç Á¤°Ý 60W¿¡ ½ºÅ×·¹¿À 120W·Î Ãâ·ÂÀÌ Áõ´ë µÇ¾ú°í À½»öÀûÀΠƯ¼º¿¡ À־µµ ±âÁ¸ IC¿¡ ºñÇؼ­ Å©°Ô Çâ»óµÇ¾ú½À´Ï´Ù. ÇöÀç ½ºÇÇÄ¿³×Æ®¿¡¼­´Â NS»ç¿¡¼­ ÃÖÀûÈ­½ÃÄÑ Á¦½ÃÇÑ ·¹ÆÛ·±½ºº¸µå¸¦ ±â¹ÝÀ¸·Î ±Ýµµ±ÝµÈ PCB¿Í °íÇ°°Ý ¼ÒÀÚµéÀ» »ç¿ëÇÏ¿© ´Ù½Ã Ä¿½ºÅ͸¶ÀÌ¡ÇÔÀ¸·Î½á ÇÑ ¼öÁØ ³ôÀº À½ÁúÀ» ±¸ÇöÇÏ¿´½À´Ï´Ù. ȸ·Î ÀÚü°¡ ´Ü¼øÇϱ⠶§¹®¿¡ °¢°¢ÀÇ ¼ÒÀÚµéÀÌ À½»öÀÌ ¹ÌÄ¡´Â ¿µÇâ ¶ÇÇÑ Å©´Ù°í º¼ ¼ö Àִµ¥ °¢°¢ÀÇ ¼ÒÀÚµéÀ» ±³È¯ÇØ °¡¸é¼­ ±× À½»öÀû Ư¼ºÀ» Áñ±â´Â °Íµµ Overture SeriesÀÇ ÀåÁ¡ÀÌ ¾Æ´Ñ°¡ »ý°¢ÇÕ´Ï´Ù.


   ¶ÇÇÑ ¼ÒÀÚµéÀÌ ½ÇÀåµÈ PCB´Â º°µµÀÇ ³³¶« ¾øÀÌ µå¶óÀ̹ö Çϳª·Îµµ Á¶¸³ÀÌ °¡´ÉÇÏ°Ô²û ¸ðµç ÀÔÃâ·Â¿¡ Å͹̳Πºí·ÏÀ» Àû¿ëÇÏ¿´±â ¶§¹®¿¡ Ãʺ¸ÀÚ ºÐµéµµ ¾î·ÆÁö ¾Ê°Ô Á¶¸³ÀÌ °¡´ÉÇÕ´Ï´Ù. ÇöÀç ½ºÇÇÄ¿³×Æ®ÀÇ º£Å¸Å×½ºÅÍ ºÐµéÀÌ LM4780ÀÇ À½»öÀûÀÎ Æ©´×À» ÁøÇàÇÏ°í ÀÖÀ¸¸ç Å©°Ô Ä¿Çøµ Äܵ§¼­, ÆòÈ°¿ë Äܵ§¼­, Àü¿øºÎ(Æ®·£½º, ´ÙÀÌ¿Àµå) ÀÌ ¼¼ °¡Áö¸¦ ³õ°í ÁýÁßÀûÀ¸·Î Å×½ºÆ® ÁßÀÔ´Ï´Ù.ÀÌ Å×½ºÆ®°¡ ³¡³ª¸é ÄÉÀ̽º¿Í Àü¿ø, ½ÅÈ£ÀÔ·Â(RCA), Ãâ·Â(½ºÇÇÄ¿)¿¡ ÇÊ¿ä·Î ÇÏ´Â Ä¿³ØÅ͵éÀ» ¼±Á¤ÇÒ °èȹÀÔ´Ï´Ù. Ä¿Çøµ Äܵ§¼­·Î´Â  ¼±¸íÇÑ °í¿ª°ú dzºÎÇÑ Àú¿ªÀÇ Æ¯¼ºÀ» °¡Áö°í ÀÖ´Â BLACKCAPÀÌ Àû¿ëµÇ°í ÆòÈ°¿ë Äܵ§¼­´Â Low ESR ŸÀÔÀÇ ¿Àµð¿À Àü¿ë Äܵ§¼­¿Í SMPS ¿¡ »ç¿ëµÇ´Â Very Low ESR ŸÀÔÀÇ Äܵ§¼­¸¦ ºñ±³ÇÏ¿© ¼±ÅÃÇÒ ¿¹Á¤ÀÔ´Ï´Ù. Æ®·£½º ¿ª½Ã ¿Àµð¿À¿¡´Â Æ®·ÎÀÌ´ÞÀÌ Æ¯¼ºÀÌ ÁÁ´Ù´Â ÀϹÝÀûÀÎ Åë¼³¿¡ µû¸£Áö ¾Ê°í EI ¹æ½ÄÀÇ Æ®·£½º¿Í ´Ù½Ã Â÷ÆóÇü, ºñÂ÷ÆóÇü µî ´Ù¾çÇÑ ºñ±³¸¦ ÁøÇàÇÏ°í ÀÖ½À´Ï´Ù.


½ºÇÇÄ¿³×Æ®¿¡¼­´Â LM4780À» ¸ÞÀÎ ÆÄ¿ö¾ÚÇÁ·Î È°¿ëÇÒ ¿¹Á¤ÀÌ¸ç ´ÙÀ½ÁÖ¿¡ Æ©´×ÀÌ ½ÃÀ۵Ǵ LM4781(35W x 3ä³Î) °æ¿ì ¼¾ÅÍ¿Í ¸®¾î¿ë ¾ÚÇÁ·Î Àû¿ëÇÒ ¿¹Á¤ÀÔ´Ï´Ù.


Æ©´×ÀÌ ¿Ï·áµÇ¸é º°µµ °øÁö ÇÏ°Ú½À´Ï´Ù.


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