Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
°¡º¯ Ŭ·Ï ¹ß»ýÀ» À§ÇÑ DLL ÁÖÆļö ÇÕ¼º±â |
¿µ¹®Á¦¸ñ(English Title) |
A DLL-Based Frequency Synthesizer for Generation of Various Clocks |
ÀúÀÚ(Author) |
ÀÌÁöÇö
¼ÛÀ±±Í
ÃÖ¿µ½Ä
ÃÖÇõȯ
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Ji-Hyun Lee
Youn-Gui Song
Young-Shig Choi
Hyek-Hwan Choi
Ji-Goo Ryu
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¿ø¹®¼ö·Ïó(Citation) |
VOL 08 NO. 06 PP. 1153 ~ 1157 (2004. 10) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â DLL(delay locked loop)¿¡¼ÀÇ ÇÁ·Î±×·¥ °¡´ÉÇÑ »õ·Î¿î ÁÖÆļö ÇÕ¼º±â¸¦ Á¦¾ÈÇÏ°íÀÚ ÇÑ´Ù. ÀϹÝÀûÀ¸·Î ÁÖÆļö¸¦ ÇÕ¼ºÇϱâ À§Çؼ PLL(phase locked loop)ÀÌ ¸¹ÀÌ ÀÌ¿ëµÇ¾î ¿ÔÀ¸¸ç, locking ½Ã°£ÀÌ ºü¸¥ DLL ¿ª½Ã ÁÖÆļö ÇÕ¼º¿¡ ÀÌ¿ëµÇ°í ÀÖ´Ù. ÇÏÁö¸¸ DLLÀÇ °æ¿ì ÁÖÆļö¸¦ ÇÕ¼ºÇϱâ À§Çؼ´Â µû·Î ÁÖÆļö¸¦ ü¹èÇÏ´Â ºí·ÏÀÌ ÇÊ¿äÇÏ´Ù. ±âÁ¸ÀÇ DLL¿¡¼ »ç¿ëµÈ ÁÖÆļö ü¹è±â´Â ÁÖÆļö¸¦ ü¹èÇÏ´Â ¹è¼ö°¡ Çѹø Á¤ÇØÁö¸é ¹Ù²Ü ¼ö ¾ø´Ù´Â ´ÜÁ¡ÀÌ ÀÖ´Ù. ±×·¯³ª º» ³í¹®¿¡¼ Á¦¾ÈÇϴ ü¹è±â´Â ÀÔ·ÂÁÖÆļö¿¡ ´ëÇؼ 6¹è¿¡¼ 10¹è±îÁö ¼±ÇüÀûÀ¸·Î ÁÖÆļö¸¦ ü¹èÇÒ ¼ö ÀÖ´Ù. Á¦¾ÈµÈ DLLÀÇ µ¿ÀÛ ÁÖÆļö ¹üÀ§´Â 600MHz¿¡¼ 1GHz±îÁö ÀÌ´Ù. $0.35-§ CMOS °øÁ¤À» ÀÌ¿ëÇØ HSPICE simulation ÇÏ¿© µ¿ÀÛÀ» °ËÁõÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
This paper describes a new programmable DLL_based frequency synthesizer. Generally, PLLs have been used for frequency synthesis. Inherent fast locking DLLs are also used for frequency synthesis. However, DLL needs a frequency multiplier for various frequencies. A conventional frequency multiplier used in DLL has a restriction in which a multiple is fixed. However, the proposed DLL can generate clocks which are from 6 times to 10 times of the reference clock. Frequency range of the proposed DLL is from 600MHz to 1GHz. The idea has been confirmed by HSPICE simulations in a $0.35-§ CMOS process.
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Å°¿öµå(Keyword) |
ÁÖÆļö ÇÕ¼º
ÁÖÆļö ü¹è±â
edge detector
VCDL
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ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
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