²ÊµçÉ«²ÊÒì³£¹ÊÕϵļìÐÞ
·¢²¼Ê±¼ä:2007/8/15 0:00:00 ·ÃÎÊ´ÎÊý:895
²ÊµçÉ«²ÊÒì³£¹ÊÕϵļìÐÞ
²ÊÉ«µçÊÓ»úÓÉÓÚijЩÔÒò²úÉúÉ«²ÊÒì³£¹ÊÕÏ£¬´ó´óÓ°ÏìÊÕ¿´Ð§¹û£¬ÉõÖÁÎÞ·¨ÏÔʾÓÐÑÕÉ«µÄͼÏñ¡£É«²ÊÒ쳣ǣ³¶µÄµç·½Ï¶à£¬¼ìÐÞÒ²½ÏÀ§ÄÑ¡£±ÊÕ߸ù¾ÝάÐÞ¾Ñ飬ÒÔ³¤ºçC2588ÐͲʵçÉ«²ÊÒì³£¹ÊÕϼìÐÞΪÀý£¬½éÉܼìÐÞ˼·£¬¹©´ó¼Ò²Î¿¼¡£
¡²Àý1¡³½ÓÊÕPALÖÆÐźż°ÊÓƵÊäÈëÐźÅʱͼÏñÓвÊÉ«ÅÀÐÐÏÖÏ󣬶ø½ÓÊÕNTSCÖÆÐźÅʱÕý³£¡£
¹ÊÕÏ·ÖÎöÓë¼ìÐÞ£ºÒò½ÓÊÕNTSCÖÆÐźÅʱ»úÆ÷Õý³££¬ËµÃ÷NTSCÖƵÄÉ«ÐźŴ¦ÀíϵͳÕý³£¡£±¾»úµÄNTSCÖƺÍPALÖÆÉ«¶ÈÐźŴ¦ÀíϵͳµÄÖ÷ÒªÇø±ðÊÇ£ºNTSCÖÆÉ«¶ÈÐźŽâµ÷ûÓÐÉ«ÑÓ³ÙÐźţ¬ÇÒ½âÂëµç·ÖÐNQ501(TA7698AP)µÄ{19}½ÅÖ±Á÷µçƽΪСÓÚ2VµÄµÍµçƽ¡£Ôì³É½ÓÊÕPALÖÆÐźÅʱ³öÏÖ²ÊÉ«ÅÀÐйÊÕÏÔÒòÓУº
1¡¡É«¶ÈÑÓ³ÙÐźÅͨ·²»Á¼£¬ÒýÆðÑÓ³ÙÐźŶªÊ§£¬»ò·ù¶È¡¢Ïàλµ÷½Ú²»µ±£¬Ê¹Fu¡¢FvÐźŷÖÀë²»ÕýÈ·¡£
2¡¡PAL/NTSCÖÆʽ¿ª¹Øת»»¿ØÖƵçƽ(TA7698APµÄ{19}½Åµçѹ)Òì³££¬ÒýÆðת»»¿ª¹Øµç·Îó¶¯×÷£¬Ê¹É«¶ÈͨµÀ½«PALÖƽÚÄ¿ÐÅºÅ´í°´NTSCÖÆʽ´¦Àí¡£
3¡¡TA7698APÄÚ²¿PALÖÆË«Îȼ°¿ª¹Øµç·²»Á¼£¬Ê¹É«¸ºÔز¨Ðźŷù¶ÈºÍÏàλÖðÐв»µÈ£¬Ôì³É½âµ÷µç·½âµ÷³öÀ´µÄÉ«²îÐźŲ»Á¼µÈ¡£
ÓɸûúÉ«¶ÈͨµÀÔÀí¿ÉÖª£ºÉ«¶ÈÑÓ³ÙÐźÅÊÇÓÉNQ5018½ÅÊä³öÒÑ·Å´óµÄÉ«¶ÈÐźţ¬¾R551µ÷Õû¡¢C507ñîºÏ¡¢D502Ò»ÐÐÑÓ³Ù¼°L551Ïàλµ÷ÕûºóÐγɵġ£´ËÐźžC509ñîºÏË͵½NQ501µÄ{19}½Å£¬{19}½ÅÖ±Á÷µçƽÊÜÍâ½ÓµÄVQN02¿ª¹Ø¹Ü¹¤×÷״̬¿ØÖÆ£¬VQN02ÓÖÊÜNQA01(CPU)¡¡{30}½ÅÊä³öµÍµçƽ(0à1V)µÄ¿ØÖƶø½ØÖ¹£¬NQ501{19}½ÅÖ±Á÷µçƽÓÉÆäÄÚ²¿µç·ÌṩΪ4Vµçѹ¡£ÔÚ½ÓÊÕNTSCÖÆʽÐźÅʱ£¬NQA01{30}½ÅÊä³ö¸ßµçƽʹVQN02±¥ºÍµ¼Í¨£¬NQ501{19}½Å´¦ÓÚ2VÒÔϵĵ͵çƽ£¬Ê¹NQ501ÄÚ²¿µç·¹¤×÷ÓÚNTSCÖÆ¡£¸ù¾ÝÒÔÉÏÔÀí·ÖÎö£¬¿ÉÖªNQ501µÄ{19}½ÅÖ±Á÷µçƽµÄ¸ßµÍÊǾö¶¨NQ501ÄÚ²¿É«¶È½âµ÷µç·¹¤×÷ÖÆʽµÄ¹Ø¼ü¡£¿ª»ú²âÁ¿NQ501{19}½ÅµçѹΪ2à4V(Õý³£Ê±Îª4à0V)£¬µÍÓÚPAL/NTSCÖÆ¿ª¹Øת»»ÁÙ½çµçѹ2à8V¡£Òò´ËÖصã¼ì²é{19}½ÅÍâ½ÓÔª¼þ£¬ÍÑ¿ªVQN02¼¯µç¼«£¬ÔÙ²âNQ501{19}½ÅµçѹÈÔΪ2à4V£¬ÍÑ¿ªC509£¬{19}½ÅµçѹÉÏÉýµ½4à0V£¬ÅжϸôÖ±µçÈÝC509(0à01¦ÌF)©µç£¬¸ü»»´ËµçÈݲ¢»Ö¸´Ôµç·ÊÔ»ú£¬É«²Ê»Ö¸´Õý³£¡£ÓÉÓÚC509©µçʹNQ501ÄÚ²¿ÌṩµÄ4Vµçѹ¾C509µÄ©µçµç×èÓëL551¼°NQ501{19}½ÅÄÚ²¿µç×è·Öѹ£¬µ¼ÖÂ{19}½ÅÖ±Á÷µçѹµÍÓÚPAL/NTSCÖÆʽת»»¿ØÖƵÄÁÙ½çµçƽ2à8V£¬Ê¹NQ501°´NTSCÖÆʽ½øÐÐÉ«¶È½âµ÷¶øÔì³É´Ë¹ÊÕÏ¡£
¡²Àý2¡³ÆÁÄ»ÓÒ±ß1/3·¶Î§ÄÚÓвÊɫͼÏñ£¬ÆäÓà2/3·¶Î§ÄÚ½öÓÐÕý³£µÄºÚ°×ͼÏñ¡£
¹ÊÕÏ·ÖÎöÓë¼ìÐÞ£ººÚ°×ͼÏñÕý³££¬ËµÃ÷¹«¹²Í¨Â·ÊÇÕý³£µÄ£¬ÓÒ±ß1/3·¶Î§ÄÚÓÐÕý³£µÄ²ÊɫͼÏñ£¬ËµÃ÷²ÊÉ«ÐźŴ¦Àí¼°½âÂëµç·ҲÕý³£¹¤×÷£¬¸Ã¹ÊÕÏ¿ÉÄÜÊÇNQ501ÄÚ²¿µÚ¶þ¼¶É«²î·Å´óÆ÷Õý³£¹¤×÷ËùÐèµÄɫѡͨÂö³åÐźÅÑÓ³Ùʱ¼äÒì³£ËùÖ¡£¸Ã»úɫѡͨÂö³åÐźÅÊÇÓÉɫѡͨÂö³å·¢ÉúÆ÷µç·Ðγɵģ¬Æ乤×÷״̬ÊÜÐÐÄæ³ÌÂö³å¡¢¸´ºÏͬ²½Âö³åÒÔ¼°NQ501{36}½ÅÖ±Á÷µçλ¿ØÖÆ¡£µ±{36}½Åµçѹ¹ý¸ß(Ô¼6à7V)ʱ»áÒýÆðɫѡͨÂö³åÑÓ³Ùʱ¼ä¹ý³¤¶øʹNQ501ÄÚ²¿ÏûÉ«µç·¶¯×÷£¬NQ501{36}½ÅÕý³£µçѹӦÔÚ4à4V¡«5à4VÖ®¼ä¡£{36}½ÅµçѹÊÇÓɸýÅÄÚ½Óͬ²½·ÖÀëµç·¹¤×÷״̬ÓëÍâ½Ó¶¨Ê±µç×èR304×èÖµ¾ö¶¨µÄ£¬Òò´ËɫѡͨÂö³åÐźÅÑÓ³Ùʱ¼äÓë{36}½ÅÍâ½ÓµÄ¶¨Ê±µç·ʱ¼ä³£ÊýÓйء£¿ª»ú²â{36}½ÅΪ6à1V(Õý³£Îª4à6V)£¬·Ö±ðÔÚ·²â{36}½ÅÍâ½ÓÔª¼þR304¡¢R306¡¢C304µÈ¾ùÎÞÒì³££¬Ó÷Ŵó¾µ×Ðϸ¹Û²ìÕ⼸¸öÔª¼þº¸µã£¬·¢ÏÖR304½ÓµØ¶ËÓÐһϸÁÑÎÆ¡£²¹º¸ºó£¬¿ª»ú²âÁ¿{36}½Å»Ö¸´Îª4à6V£¬Í¬Ê±ÆÁĻͼÏñ²ÊÉ«»Ö¸´Õý³££¬¹ÊÕÏÅųý¡£
²ÊµçÉ«²ÊÒì³£¹ÊÕϵļìÐÞ
²ÊÉ«µçÊÓ»úÓÉÓÚijЩÔÒò²úÉúÉ«²ÊÒì³£¹ÊÕÏ£¬´ó´óÓ°ÏìÊÕ¿´Ð§¹û£¬ÉõÖÁÎÞ·¨ÏÔʾÓÐÑÕÉ«µÄͼÏñ¡£É«²ÊÒ쳣ǣ³¶µÄµç·½Ï¶à£¬¼ìÐÞÒ²½ÏÀ§ÄÑ¡£±ÊÕ߸ù¾ÝάÐÞ¾Ñ飬ÒÔ³¤ºçC2588ÐͲʵçÉ«²ÊÒì³£¹ÊÕϼìÐÞΪÀý£¬½éÉܼìÐÞ˼·£¬¹©´ó¼Ò²Î¿¼¡£
¡²Àý1¡³½ÓÊÕPALÖÆÐźż°ÊÓƵÊäÈëÐźÅʱͼÏñÓвÊÉ«ÅÀÐÐÏÖÏ󣬶ø½ÓÊÕNTSCÖÆÐźÅʱÕý³£¡£
¹ÊÕÏ·ÖÎöÓë¼ìÐÞ£ºÒò½ÓÊÕNTSCÖÆÐźÅʱ»úÆ÷Õý³££¬ËµÃ÷NTSCÖƵÄÉ«ÐźŴ¦ÀíϵͳÕý³£¡£±¾»úµÄNTSCÖƺÍPALÖÆÉ«¶ÈÐźŴ¦ÀíϵͳµÄÖ÷ÒªÇø±ðÊÇ£ºNTSCÖÆÉ«¶ÈÐźŽâµ÷ûÓÐÉ«ÑÓ³ÙÐźţ¬ÇÒ½âÂëµç·ÖÐNQ501(TA7698AP)µÄ{19}½ÅÖ±Á÷µçƽΪСÓÚ2VµÄµÍµçƽ¡£Ôì³É½ÓÊÕPALÖÆÐźÅʱ³öÏÖ²ÊÉ«ÅÀÐйÊÕÏÔÒòÓУº
1¡¡É«¶ÈÑÓ³ÙÐźÅͨ·²»Á¼£¬ÒýÆðÑÓ³ÙÐźŶªÊ§£¬»ò·ù¶È¡¢Ïàλµ÷½Ú²»µ±£¬Ê¹Fu¡¢FvÐźŷÖÀë²»ÕýÈ·¡£
2¡¡PAL/NTSCÖÆʽ¿ª¹Øת»»¿ØÖƵçƽ(TA7698APµÄ{19}½Åµçѹ)Òì³££¬ÒýÆðת»»¿ª¹Øµç·Îó¶¯×÷£¬Ê¹É«¶ÈͨµÀ½«PALÖƽÚÄ¿ÐÅºÅ´í°´NTSCÖÆʽ´¦Àí¡£
3¡¡TA7698APÄÚ²¿PALÖÆË«Îȼ°¿ª¹Øµç·²»Á¼£¬Ê¹É«¸ºÔز¨Ðźŷù¶ÈºÍÏàλÖðÐв»µÈ£¬Ôì³É½âµ÷µç·½âµ÷³öÀ´µÄÉ«²îÐźŲ»Á¼µÈ¡£
ÓɸûúÉ«¶ÈͨµÀÔÀí¿ÉÖª£ºÉ«¶ÈÑÓ³ÙÐźÅÊÇÓÉNQ5018½ÅÊä³öÒÑ·Å´óµÄÉ«¶ÈÐźţ¬¾R551µ÷Õû¡¢C507ñîºÏ¡¢D502Ò»ÐÐÑÓ³Ù¼°L551Ïàλµ÷ÕûºóÐγɵġ£´ËÐźžC509ñîºÏË͵½NQ501µÄ{19}½Å£¬{19}½ÅÖ±Á÷µçƽÊÜÍâ½ÓµÄVQN02¿ª¹Ø¹Ü¹¤×÷״̬¿ØÖÆ£¬VQN02ÓÖÊÜNQA01(CPU)¡¡{30}½ÅÊä³öµÍµçƽ(0à1V)µÄ¿ØÖƶø½ØÖ¹£¬NQ501{19}½ÅÖ±Á÷µçƽÓÉÆäÄÚ²¿µç·ÌṩΪ4Vµçѹ¡£ÔÚ½ÓÊÕNTSCÖÆʽÐźÅʱ£¬NQA01{30}½ÅÊä³ö¸ßµçƽʹVQN02±¥ºÍµ¼Í¨£¬NQ501{19}½Å´¦ÓÚ2VÒÔϵĵ͵çƽ£¬Ê¹NQ501ÄÚ²¿µç·¹¤×÷ÓÚNTSCÖÆ¡£¸ù¾ÝÒÔÉÏÔÀí·ÖÎö£¬¿ÉÖªNQ501µÄ{19}½ÅÖ±Á÷µçƽµÄ¸ßµÍÊǾö¶¨NQ501ÄÚ²¿É«¶È½âµ÷µç·¹¤×÷ÖÆʽµÄ¹Ø¼ü¡£¿ª»ú²âÁ¿NQ501{19}½ÅµçѹΪ2à4V(Õý³£Ê±Îª4à0V)£¬µÍÓÚPAL/NTSCÖÆ¿ª¹Øת»»ÁÙ½çµçѹ2à8V¡£Òò´ËÖصã¼ì²é{19}½ÅÍâ½ÓÔª¼þ£¬ÍÑ¿ªVQN02¼¯µç¼«£¬ÔÙ²âNQ501{19}½ÅµçѹÈÔΪ2à4V£¬ÍÑ¿ªC509£¬{19}½ÅµçѹÉÏÉýµ½4à0V£¬ÅжϸôÖ±µçÈÝC509(0à01¦ÌF)©µç£¬¸ü»»´ËµçÈݲ¢»Ö¸´Ôµç·ÊÔ»ú£¬É«²Ê»Ö¸´Õý³£¡£ÓÉÓÚC509©µçʹNQ501ÄÚ²¿ÌṩµÄ4Vµçѹ¾C509µÄ©µçµç×èÓëL551¼°NQ501{19}½ÅÄÚ²¿µç×è·Öѹ£¬µ¼ÖÂ{19}½ÅÖ±Á÷µçѹµÍÓÚPAL/NTSCÖÆʽת»»¿ØÖƵÄÁÙ½çµçƽ2à8V£¬Ê¹NQ501°´NTSCÖÆʽ½øÐÐÉ«¶È½âµ÷¶øÔì³É´Ë¹ÊÕÏ¡£
¡²Àý2¡³ÆÁÄ»ÓÒ±ß1/3·¶Î§ÄÚÓвÊɫͼÏñ£¬ÆäÓà2/3·¶Î§ÄÚ½öÓÐÕý³£µÄºÚ°×ͼÏñ¡£
¹ÊÕÏ·ÖÎöÓë¼ìÐÞ£ººÚ°×ͼÏñÕý³££¬ËµÃ÷¹«¹²Í¨Â·ÊÇÕý³£µÄ£¬ÓÒ±ß1/3·¶Î§ÄÚÓÐÕý³£µÄ²ÊɫͼÏñ£¬ËµÃ÷²ÊÉ«ÐźŴ¦Àí¼°½âÂëµç·ҲÕý³£¹¤×÷£¬¸Ã¹ÊÕÏ¿ÉÄÜÊÇNQ501ÄÚ²¿µÚ¶þ¼¶É«²î·Å´óÆ÷Õý³£¹¤×÷ËùÐèµÄɫѡͨÂö³åÐźÅÑÓ³Ùʱ¼äÒì³£ËùÖ¡£¸Ã»úɫѡͨÂö³åÐźÅÊÇÓÉɫѡͨÂö³å·¢ÉúÆ÷µç·Ðγɵģ¬Æ乤×÷״̬ÊÜÐÐÄæ³ÌÂö³å¡¢¸´ºÏͬ²½Âö³åÒÔ¼°NQ501{36}½ÅÖ±Á÷µçλ¿ØÖÆ¡£µ±{36}½Åµçѹ¹ý¸ß(Ô¼6à7V)ʱ»áÒýÆðɫѡͨÂö³åÑÓ³Ùʱ¼ä¹ý³¤¶øʹNQ501ÄÚ²¿ÏûÉ«µç·¶¯×÷£¬NQ501{36}½ÅÕý³£µçѹӦÔÚ4à4V¡«5à4VÖ®¼ä¡£{36}½ÅµçѹÊÇÓɸýÅÄÚ½Óͬ²½·ÖÀëµç·¹¤×÷״̬ÓëÍâ½Ó¶¨Ê±µç×èR304×èÖµ¾ö¶¨µÄ£¬Òò´ËɫѡͨÂö³åÐźÅÑÓ³Ùʱ¼äÓë{36}½ÅÍâ½ÓµÄ¶¨Ê±µç·ʱ¼ä³£ÊýÓйء£¿ª»ú²â{36}½ÅΪ6à1V(Õý³£Îª4à6V)£¬·Ö±ðÔÚ·²â{36}½ÅÍâ½ÓÔª¼þR304¡¢R306¡¢C304µÈ¾ùÎÞÒì³££¬Ó÷Ŵó¾µ×Ðϸ¹Û²ìÕ⼸¸öÔª¼þº¸µã£¬·¢ÏÖR304½ÓµØ¶ËÓÐһϸÁÑÎÆ¡£²¹º¸ºó£¬¿ª»ú²âÁ¿{36}½Å»Ö¸´Îª4à6V£¬Í¬Ê±ÆÁĻͼÏñ²ÊÉ«»Ö¸´Õý³££¬¹ÊÕÏÅųý¡£
ÉÏһƪ£ºµç±ùÏäÃÅ·âÌõµÄÓ¦¼±ÐÞÀí
ÉÏһƪ£ºÊý×ÖÐźŵĻù±¾¸ÅÄî
ÈÈÃŵã»÷
- ½¨ÎéRXD-V890ÒôÏì±£»¤¹Ø»ú¹ÊÕϼìÐÞÁ½Àý
- ·ÉÀûÆÖ¹âÍ·³£¼û¹ÊÕϼìÐÞ
- ×êʯKYT-30ÐÍתҳÉȵç·ÓëάÐÞ
- ÕíÐÎУÕýµç·--Ó°ÏìµçÊÓÐзùºÍͼÏñʧÕæ
- ÍòÀû´ïN28ÐÍVCD»ú³£¼û¹ÊÕϼìÐÞ22Àý
- ³¤ºçG2539ÐͲʵç¶þ´Î²»ÄÜ¿ª»ú
- º£¶ûXOB60-HÈ«×Ô¶¯Ï´Ò»úˮλ¿ØÖƲ¿·Ö¼ì
- СÌì¶ìXQB30-8ÐÍÈ«×Ô¶¯Ï´Ò»úµçÄÔ°åάÐÞ
- Êý×ÖÐźŵÄÎÞʧÕæ´«Êä
- Ë÷Äá²ÊµçͼÏñˮƽ»Î¶¯µÄ¹ÊÕϼìÐÞ
ÍƼö¼¼Êõ×ÊÁÏ
- PCB²¼ÏßÒªµã
- Õû»úµç·ͼ¼ûͼ4¡£½«µç·»ºÃ¡¢¼ì²éÎÞÎóÖ®ºó¾Í¿ªÊ¼½øÐеç... [Ïêϸ]
- ͨ¹ýÇ¿¸ÉÈÅÏÈÑéÐÅÏ¢¹¹½¨×èÈû¾ØÕóÔÚÕóÁÐÁ÷ÐÍÖеÖ
- ÌØÕ÷²¨Êø·¨ÔÚ×ÓÕóÉϽøÐв¨ÊøÐγÉÁãÏݵÖÏû¸ÉÈŽø
- ÒÔUSRP °Ëµ¥Ôª¾ùÔÈÏßÐÎÌìÏßÕóºÍÉÏλ»ú¹¹½¨
- Ö÷»ú¶¯Ì¬¸ü¸ÄÄ£¿éI2CµØַʵÏÖµ¥I2C×ÜÏß¹Ò
- Èȵç×è´«µ¼½ø²âεç·ͨ¹ýµçÔ´ñîºÏ½øÐźÅÁ´ÖÐÔì
- ½«¸´ÔÓÍÆÀíÀàÈÎÎñ·ÓɸøÅ̹Ŵ¦Àí½«ÎÄ°¸Éú³ÉÀàÇë
- ¶àýÌåд¦ÀíÆ÷SM501ÔÚǶÈëʽϵͳÖеÄÓ¦ÓÃ
- »ùÓÚIEEE802.11bµÄEPAζȱäËÍÆ÷
- QUICCEngineÐÂÒýÇæÍƶ¯IPÍøÂç¸ïÐÂ
- SoCÃæÊÀ°ËÄêºóµÄ²úÒµ»úÓö
- MPC8xxϵÁд¦ÀíÆ÷µÄǶÈëʽϵͳµçÔ´Éè¼Æ
- dsPIC¼°ÆäÔÚ½»Á÷±äƵµ÷ËÙÖеÄÓ¦ÓÃÑо¿