ÇöÀç ¼¼°è¿¡¼ °¡Àå ¹ßÀüµÈ ÄÁ¹öÅÍ´Â dCS Elgar PlusÀÔ´Ï´Ù. Àü¼³ÀûÀÎ dCS ElgarÀÇ Çõ½ÅÀûÀÎ Á¦Ç°ÀÔ´Ï´Ù. ¿À¸®Áö³¯ dCS ElgarÀº 1996³â óÀ½ Ãâ½ÃµÇ¾úÀ¸¸ç ±× ÇØ´Â ¿Àµð¿ÀÆÄÀÏ¿ë D/A ÄÁ¹öÅÍÀÇ 24/96 Æ÷¸ËÀÌ ¼¼°è¿¡ ù¼±À» º¸ÀÎ ¶§ÀÔ´Ï´Ù. 1998³â Elgar´Â ¾÷±×·¹À̵åµÇ¾î ¿Àµð¿ÀÆÄÀÏ¿ë 24/192 Æ÷¸ËÀ» ¼¼°è¿¡ ³»³õ°Ô µË´Ï´Ù. 2000³â¿£ ÇÁ·Î¿ë DSD µðÁöÅÐ ¼Ò½º·ÎºÎÅÍ Data¸¦ ¹Þ¾ÆµéÀÌ´Â DSD D/A ÄÁ¹öÅÍÀÎ Elgar Plus¸¦ ³»³õ°Ô µË´Ï´Ù. 2001¿¡´Â IEEE1394 Digital Interface¸¦ Ç¥ÁØÀ¸·Î Ãß°¡ÇÏ°Ô µË´Ï´Ù. ÀÌ´Â Consumer DSD digital interfaceÀÇ Ç¥ÁØÀÌ µË´Ï´Ù. Elgar Plus´Â SACD/CD Æ®·£½ºÆ÷ÅÍÀÎ dCS Verdi Encore³ª CD¸¦ DSD·Î ¾÷¼ÀÇøµÇÏ´Â dCS Purcell·ÎºÎÅÍ DSD Data¸¦ ¹Þ¾ÆµéÀÌ´Â IEEE1394 interface¸¦ »ç¿ëÇÕ´Ï´Ù. 2003³â ÀÚüÀÇ ¡°Easy Play" ¼ÒÇÁÆ®¿þ¾î¸¦ ¼±º¸À̸ç Elgar Plus´Â °è¼Ó ¹ßÀüÇÏ°í ÀÖ½À´Ï´Ù.
dCS Elgar Plus¿¡ Àû¿ëÇÑ ÃÖ½ÅÀÇ ±â¼úÀº ÀϹÝÀûÀÎ ÄÁ¹öÅ͸¦ ÃÊ¿ùÇÑ Ãß°¡ÀûÀÎ ±â´É°ú Ư¡À¸·Î ¸Å¿ì ³ÐÀº Range¸¦ °¡´ÉÄÉ ÇÕ´Ï´Ù. ÀÌ´Â ¾ÆÁÖ À¯¿¬ÇÏ¿© ¾î¶°ÇÑ ½Ã½ºÅÛÀÌ¶óµµ Àß ¸Â½À´Ï´Ù. °£´ÜÈ÷ ±× ¸é¸éÀ» »ìÆ캸°Ú½À´Ï´Ù.
The dCS Ring DAC
dCS Elgar PlusÀÇ ½ÉÀåÀº dCS Ring DACÀÔ´Ï´Ù. À̴ ŸÁ¦Ç°µé°ú´Â ´Ù¸¥, ƯÇãÀÎ 5bit 64¹è over-sampling ±¸Á¶¸¦ °¡Á³½À´Ï´Ù. 64¹è over-samplingÀº input sample rate°¡ 44.1kS/s ¶Ç´Â 48kS/s¿¡ µû¶ó ½ÇÁ¦ ÄÁ¹öÅÍ data Rate°¡ 2.822MS/s ¶Ç´Â 3.072MS/s°¡ µÇ´Â °É ÀǹÌÇÕ´Ï´Ù. ÀÌ´Â ¸Å¿ì ºÎµå·´°í ±×·¡¼ ¾ÆÁÖ Åõ¸íÇÑ ¾Æ³¯·Î±× output filter¸¦ »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù. dCS Elgar Plus´Â ´ëºÎºÐÀÇ Å¸ ÄÁ¹öÅÍ¿¡ ±âº»ÀÌ µÇ´Â Á¾·¡ÀÇ one-bit³ª multi-bit ÄÁ¹öÅÍÀÇ IC°¡ °¡Áø ÇѰ踦 ±Øº¹Çß½À´Ï´Ù. ÀüÅõ±â Radar¿¡ Àû¿ëµÈ A/D ÄÁ¹öÅ͸¦ ¼³°èÇÑ ±â¼úÀÇ ¹ßÀüÀÔ´Ï´Ù.
One Bit ¹æ½ÄÀÇ ÄÁ¹öÅÍ´Â Linearity´Â ÁÁÀ¸³ª ÄÁ¹öÅÍ Ãâ·Â´ÜÀÌ ³ôÀº data rate¿¡¼´Â Clock error°¡ ¹ß»ýÇÏ¿© ³ëÀÌÁ µð½ºÅä¼ÇÀ» ¾ß±âÇÕ´Ï´Ù.
º¸ÅëÀÇ Multi-bit ÄÁ¹öÅÍ´Â One-bit¿¡ ºñÇÏ¿© µð½ºÅä¼ÇÀ̳ª ³ëÀÌÁî¿¡¼ ÀåÁ¡Àº ÀÖ´Ù. ´ÜÁ¡Àº DAC¿¡ ³»ÀåµÈ resistor chain¿¡ µû¶ó current source°¡ ¹Ù²ï´Ù´Â °ÍÀÔ´Ï´Ù. 16bitÀÇ °æ¿ì bit current source°¡ i, i/2, i/4............i/65,536¿¡ ÀÌ·¯´Âµ¥ ÀÌ·¸°Ô µÊÀ¸·Î¼ Á¤¹ÐÀ» ¿äÇÏ´Â resistor¸¦ Á¦Á¶Çϱ⠾î·Æ°í ½Ã°£À̳ª ¿Âµµº¯È¿¡ µû¶ó¼ º¯ÇÕ´Ï´Ù. ÀÌ·± ¹®Á¦´Â converter wordlength°¡ ±æ¼ö·Ï Áß´ëÇÑ ¹®Á¦¸¦ ¹ß»ý½Ãŵ´Ï´Ù. µû¶ó¼ Á¾·¡ÀÇ ¸ÖƼºñÆ® ¼³°è´Â ´À¸®°í Á¤È®¼ºÀÌ ¶³¾îÁý´Ï´Ù.
dCS Ring DAC´Â 5 bit ´ÜÀÏÁ¶ÇÕ ÄÁ¹öÅÍÀÔ´Ï´Ù. ´ÜÀÏÁ¶ÇÕ multi-bit¿¡¼ ´Ù·ç´Â ±Øµµ·Î ³·Àº current¸¦ Á¤È®ÇÏ°Ô Ç¥½ÃÇÏ´Â resisterµéÀ» »ç¿ëÇÏ¿© ¹®Á¦Á¡Àº ¾ø½À´Ï´Ù. ÀÌ·¯ÇÑ Á¡À¸·Î current¿¡ error°¡ Á¸ÀçÄ¡ ¾Ê½À´Ï´Ù. one-bit ÄÁ¹öÅÍ¿¡ ºñÇÏ¿© »ó´ëÀûÀ¸·Î ³·Àº sampling ÁÖÆļö¿¡¼ ÀÛµ¿ÇÏ¿© ³ôÀº clock speed¿¡¼ º¯È¸¦ ÃÊ·¡ÇÏ´Â ¹®Á¦Á¡À» ÇÇÇÒ ¼ö ÀÖ½À´Ï´Ù. dCS Ring DACÀÇ Á¤È®¼ºÀº ½Ã°£ÀÌ Áö³ª¸é¼ »ý±â´Â, ¶Ç´Â ¿Âµµº¯È¿¡ µû¸¥ ¾î¶°ÇÑ ¹®Á¦Á¡µµ ¾øÀÌ Ç×»ó ÀÏÁ¤ÇÑ ¼º´ÉÀ» ³ªÅ¸³À´Ï´Ù.
°¡Àå Áß¿äÇÑ °ÍÀº dCS Ring DAC°¡ Ç×»ó ÀÏÁ¤ÇÑ linearity¸¦ °®´Â °ÍÀε¥ ÀÌ´Â D/A ÄÁ¹öÅÍ¿¡¼ Áß¿äÇÑ ¿ä¼Ò·Î ¿Àµð¿ÀÆÄÀÏ¿ë ÄÁ¹öÅÍ¿¡¼´Â µå¹°°Ô ¾ð±ÞµË´Ï´Ù. ÀÌ´Â º¸Åë 24bit ÄÁ¹öÅÍ·Î 24bitÀÇ ±ä data¸¦ ¹Þ¾ÆµéÀÌ´Â ÄÁ¹öÅ͸¦ ÀǹÌÇÏÁö¸¸ ¸ðµç ÄÁ¹öÅÍ°¡ 24bitÀÇ data¸¦ ´ëÀÀÇÏÁö´Â ¸øÇÏÁö¸¸ Elgar Plus´Â ´ëÀÀÇÕ´Ï´Ù.
How does good linearity relate to sound?
ÄÁ¹öÅÍÀÇ linearity°¡ ÁÁ¾ÆÁú¼ö·Ï µðÁöÅÐ À½¿øÀÇ À½ÁúÀº ´õ¿í Á¤È®ÇØÁý´Ï´Ù. Á¾·¡ÀÇ ÄÁ¹öÅÍ´Â °íÁÖÆÄ ¿µ¿ª¿¡¼± linearity°¡ ²Ï³ª ÁÁÁö¸¸ ÀúÁÖÆÄ ¿µ¿ª¿¡¼± °¥¼ö·Ï linearity°¡ ¶³¾îÁý´Ï´Ù. °á°úÀûÀ¸·Î ·ëÀÇ È¯°æÀ̳ª ÀÜÇâ°ú °°Àº low level detail°ú ¸ñ¼Ò¸®³ª ¾Ç±âÀÇ À½»ö°ú °°Àº ¹Ì¼¼ÇÑ detailÀÌ ±úÁö°Å³ª ¾ø¾îÁý´Ï´Ù.
Elgar Plus´Â dCS Ring DAC·Î ÀÎÇÏ¿© detailÀ» Àß »ì·Á¼ ´õ ÁÁÀº À½¾ÇÀ¸·Î Àç»ý»êÇÏ´Â °Íº¸´Ù´Â À½¾ÇÀ» À½¾Ç´ä°Ô ÇÕ´Ï´Ù. ±×·¡¼ À½¾ÇÀ» ¿À·¡µµ·Ï µé¾îµµ ÇÇ°ïÇÏÁö ¾Ê½À´Ï´Ù. °¡²û¾¿ Elgar Plus »ç¿ëÀÚ¿¡°Ô ¹°À¸¸é ÈǸ¢ÇÑ ¾Æ³¯·Î±× sound°°´Ù°í ÇÕ´Ï´Ù. Á¾·¡ÀÇ ÄÁ¹öÅÍ¿¡¼± ±¸ÇöÇϱ⠾î·Á¿î low level detailÀÇ linearity°¡ Elgar Plus´Â ÁÁ±â ¶§¹®¿¡ ´õ ÀÌ»ó ³î¶ö ÀÏÀº ¾Æ´Õ´Ï´Ù.
#### Specification ####
* Converter type: dCS Ring DAC, oversampling to 5 bits / approx. 3MS/s * Analogue outputs: 1 x Balanced pair, 1 x Unbalanced pair * 2V or 6V rms for full scale input, switchable * PCM Digital inputs: 2 x AES3 or 1 x Dual AES, SPDIF on: RCA (2), * BNC (1), TOSlink (1), ST (1) and SDIF-2 * DSD Digital inputs: 2 x IEEE1394 with encrypted data, 1 x SDIF * Word clock I/O: 1 x BNC each * Digital output: 1 x SPDIF on RCA phono * Sample rates: 32, 44.1, 48, 88.2 & 96kS/s on single wire or SDIF * 88.2, 96, 176.4 & 192kS/s on Dual AES * 2.822MS/s for DSD on 1394 interface or SDIF * Power consumption: 34 Watts typical, 40 Watts maximum * Supply voltage: 100, 115/120, 200, 215/220 or 230/240V AC +/-10% * Weight: 12.0kg (26.4lbs) * Size: 461 x 406 x 75mm (18.15¡± x 16.0¡± x 2.94¡±)
¿©Æ÷°¡ ¿Ö Ä£¾Æ¹öÁö³ª ´Ù¸§¾ø´Â µ¿Å¹À» Á×ÀÎÁö ¾Æ½Ê´Ï±î? °ü¿îÀåÀÌ Àá½Ã Á¶Á¶ÇÑÅ× ¸öÀ» ÀÇŹÇØ ÀÖ´Ù°¡ ¶°³¯ ¶§ ³¡±îÁö °¡Áö°í °£ °ÍÀÌ ¹½ÀÎÁö ¾Æ½Ê´Ï±î? ÀûÅ丶·Î ÀÎÇÏ¿© ¾Æ¹öÁö °°Àº »ç¶÷À» Á×ÀÌ°í ÀÎÀǸ¦ ã¾Æ ¶°³¯ ¶§ ³¡±îÁö µ¿°íµ¿¶ôÀ» °°ÀÌ ÇÑ ¸»ÀÌ ÀûÅ丶ÀÔ´Ï´Ù.
ÀÌÁ¦²¯ µé¾îº» ½ÃµðÇǵéÀº º¸ÅëÀÇ ¸»µéÀ̶ó¸é dCS¾ß¸»·Î ÀûÅ丶¿Í °°ÀÌ ¾îµð¸¦ ³»³õ¾Æµµ ¼Õ»ö¾ø´Â ÃÖ°íÀÇ ½ÃµðÇǶó°í ÇÒ ¼ö ÀÖ½À´Ï´Ù.
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