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IDT, ÇÁ·Î±×·¡¹Ö °¡´ÉÇÑ ÀúÀü·Â ŸÀÌ¹Ö µð¹ÙÀ̽º

(Åé ±â»ç, 13 Apr 2010 )

IDT(www.idt.com Çѱ¹ Áö»çÀå: ÀÌ»ó¿±)°¡ »õ·Î¿î IDT ¹ö»çŬ·°(VersaClock¢â) ŸÀÌ¹Ö µð¹ÙÀ̽º ½ÅÁ¦Ç°À» ¼±º¸¿´´Ù. IDT¹ö»çŬ·° ÀúÀü·Â(LP: Low Power) µð¹ÙÀ̽º´Â ½º¸¶Æ®Æù, °³ÀÎ¿ë ³×ºñ°ÔÀÌ¼Ç µð¹ÙÀ̽º, MP3 Ç÷¹À̾î, Ä·ÄÚ´õ µî°ú °°Àº ¹èÅ͸® ±¸µ¿ ¹æ½ÄÀÇ ÄÁ½´¸Ó ¾ÖÇø®ÄÉÀ̼ǿ¡ »ç¿ëµÇ¾î Àü·Â ¼Ò¸ð·® °¨¼Ò ¹× º¸µå ·¹À̾ƿô ÃÖÀûÈ­°¡ °¡´ÉÇϵµ·Ï Ưº°È÷ µðÀÚÀÎµÈ ÇÁ·Î±×·¡¹Ö °¡´ÉÇÑ Å¬·° »ý¼º±âÀÌ´Ù.

ÄÁ¼ö¸Ó ÀüÀÚ µð¹ÙÀ̽º ºÐ¾ß¿¡¼­ Àü·Â È¿À²¿¡ ´ëÇÑ ¿ä±¸°¡ ³¯·Î Áõ°¡Çϰí ÀÖ´Â °¡¿îµ¥, IDTÀÇ »õ·Î¿î ŸÀÌ¹Ö µð¹ÙÀ̽º´Â »ó´çÇÑ ¼öÁØÀÇ Àü·Â ¼Ò¸ð °¨¼Ò¸¦ Á¦°øÇÑ´Ù. ¹ö»çŬ·° LP µð¹ÙÀ̽º´Â ´ÜÀÏ Å¬·° ÀԷ¿¡ ´ëÇØ Àü·Â ¿ä±¸ »çÇ×À» 30-40mW¿¡¼­ 4-8mW·Î Çö°ÝÈ÷ ³·ÃãÀ¸·Î½á ÷´Ü ÈÞ´ëÇü ÀüÀÚ Á¦Ç°ÀÇ ¹èÅ͸® ¼ö¸íÀ» Çâ»ó½Ãų ¼ö ÀÖ´Ù. »Ó¸¸ ¾Æ´Ï¶ó ÀýÀü ¸ðµå(20uW) ¹× ½½¸³ ¸ðµå(32kHz Ŭ·° Ȱ¼ºÈ­, 200uW) ½Ã Àü·Â »ç¿ë·® ¶ÇÇÑ ´ëÆø ³·Ãß¾î ¾÷°èÀÇ »õ·Î¿î ÀúÀü·Â º¥Ä¡¸¶Å©°¡ µÇ°í ÀÖ´Ù.

IDT ¹ö»çŬ·° LP µð¹ÙÀ̽º 5Á¾(5P49EE801, 5P49EE802, 5P49EE601, 5P49EE602 ¹× 5P49EE502)Àº ¸ðµÎ ÅëÇÕµÈ ³× °³ÀÇ ³»ºÎ PLLÀ» °®Ãß°í ÀÖ´Ù. °¢°¢ÀÇ PLLÀº µ¶¸³ÀûÀÎ ÇÁ·Î±×·¡¹ÖÀÌ °¡´ÉÇÑ °ÍÀº ¹°·Ð ³× °³ÀÇ °íÀ¯ÇÑ Á֯ļö¸¦ »ý¼ºÇÏ¿© °³º° Ŭ·° Ãâ·Â ¼º´ÉÀ» ÃÖÀûÈ­ÇÏ°í ½Ã½ºÅÛ Á¤È®µµ¸¦ °³¼±½ÃŲ´Ù. ¶ÇÇÑ Å¬·° Á֯ļö, ´ÜÀÏ TCXO ¶Ç´Â ±âº» ¸ðµå Å©¸®½ºÅÐ ·¹ÆÛ·±½º¿¡¼­ Á֯ļö¸¦ »ý¼ºÇÔÀ¸·Î½á µðÀÚÀ̳ʿ¡°Ô ÃÖÀûÀÇ À¯¿¬¼ºÀ» Á¦°øÇÑ´Ù. µðÀÚÀ̳ʵéÀº ´ÜÀÏ ·¹ÆÛ·±½º Ŭ·°À» »ç¿ëÇÏ¿© Á¤È®µµ¸¦ À¯ÁöÇϸ鼭µµ µðÀÚÀÎÀÇ ´Ü¼øÈ­¿Í º¸µå °ø°£ Àý°¨À» ÀÌ·ê ¼ö ÀÖ´Ù.

³× °³ÀÇ ³»ºÎ PLL Áß Çϳª´Â ÀüÀڱ⠰£¼·(EMI: Electromagnetic Interference)À» ³·Ãß´Â ½ºÇÁ·¹µå ½ºÆåÆ®·³ »ý¼ºÀ» Áö¿øÇϴµ¥, ÀÌ´Â FCC(Federal Communications Commission)¸¦ ºñ·ÔÇÑ ±× ¹ÛÀÇ ´Ù¸¥ ÀÎÁõ ¿ä±¸ »çÇ×À» ÃæÁ·½ÃŰ´Â µ¥ ¹Ýµå½Ã ÇÊ¿äÇÑ »ç¾çÀÌ´Ù. ¶ÇÇÑ, »õ·Î¿î ¹ö»çŬ·° µð¹ÙÀ̽º´Â5kHz ~ 120MHz ¹üÀ§ÀÇ Á֯ļö¸¦ »ý¼ºÇÒ ¼ö ÀÖ¾î ÈÞ´ëÇü ÄÁ½´¸Ó ¾ÖÇø®ÄÉÀ̼ÇÀ» À§ÇØ ¶Ù¾î³­ µðÀÚÀÎ À¯¿¬¼ºÀ» Á¦°øÇÑ´Ù.

IDT ¹ö»çŬ·° µð¹ÙÀ̽º´Â ´ÜÀÏ Á¾´Ü LVCMOS¿¡¼­ Â÷µ¿ LVDS¿¡ À̸£´Â ¿©·¯ Á¾·ùÀÇ Ãâ·Â À¯Çü°ú ȣȯÀÌ °¡´ÉÇÏ´Ù. µû¶ó¼­ ´ÜÀÏ ¹ö»çŬ·° µð¹ÙÀ̽º¸¸À¸·Î ´Ù¾çÇÑ Å¸ÀÌ¹Ö ½Ã½ºÅÛÀ» Áö¿øÇÒ ¼ö ÀÖ¾î µðÀÚÀÎÀ» ´Ü¼øÈ­ÇÏ°í º¸µå ·¹À̾ƿôÀ» ÃÖÀûÈ­ ½Ãų ¼ö ÀÖ´Ù.

IDT¹ö»çŬ·° LP µð¹ÙÀ̽º´Â 20ÇÉ ¹× 24ÇÉ QFN µî ¿©·¯ ÆÐŰÁö ¿É¼ÇÀ¸·Î °ø±ÞµÈ´Ù. ÇöÀç ¼±Á¤µÈ °í°´À» ´ë»óÀ¸·Î »ùÇøµ Áß¿¡ ÀÖÀ¸¸ç, ÀÏÁ¤ ÀÚ°ÝÀ» °®Ãá °í°´Àº Æò°¡ º¸µåµµ »ç¿ëÇÒ ¼ö ÀÖ´Ù.

 
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