dds.vhd

用VHDL语言实现DDS直接数字频率合成器的设计

				when x"010b" => data<=x"0f8e";
				when x"010c" => data<=x"0f9c";
				when x"010d" => data<=x"0faa";
				when x"010e" => data<=x"0fb8";
				when x"010f" => data<=x"0fc6";
				when x"0110" => data<=x"0fd4";
				when x"0111" => data<=x"0fe2";
				when x"0112" => data<=x"0ff0";
				when x"0113" => data<=x"0ffe";
				when x"0114" => data<=x"100c";
				when x"0115" => data<=x"101a";
				when x"0116" => data<=x"1028";
				when x"0117" => data<=x"1036";
				when x"0118" => data<=x"1044";
				when x"0119" => data<=x"1052";
				when x"011a" => data<=x"1060";
				when x"011b" => data<=x"106e";
				when x"011c" => data<=x"107c";
				when x"011d" => data<=x"1089";
				when x"011e" => data<=x"1097";
				when x"011f" => data<=x"10a5";
				when x"0120" => data<=x"10b3";
				when x"0121" => data<=x"10c1";
				when x"0122" => data<=x"10cf";
				when x"0123" => data<=x"10dd";
				when x"0124" => data<=x"10ea";
				when x"0125" => data<=x"10f8";
				when x"0126" => data<=x"1106";
				when x"0127" => data<=x"1114";
				when x"0128" => data<=x"1122";
				when x"0129" => data<=x"112f";
				when x"012a" => data<=x"113d";
				when x"012b" => data<=x"114b";
				when x"012c" => data<=x"1159";
				when x"012d" => data<=x"1166";
				when x"012e" => data<=x"1174";
				when x"012f" => data<=x"1182";
				when x"0130" => data<=x"1190";
				when x"0131" => data<=x"119d";
				when x"0132" => data<=x"11ab";
				when x"0133" => data<=x"11b9";
				when x"0134" => data<=x"11c6";
				when x"0135" => data<=x"11d4";
				when x"0136" => data<=x"11e2";
				when x"0137" => data<=x"11ef";
				when x"0138" => data<=x"11fd";
				when x"0139" => data<=x"120a";
				when x"013a" => data<=x"1218";
				when x"013b" => data<=x"1226";
				when x"013c" => data<=x"1233";
				when x"013d" => data<=x"1241";
				when x"013e" => data<=x"124e";
				when x"013f" => data<=x"125c";
				when x"0140" => data<=x"1269";
				when x"0141" => data<=x"1277";
				when x"0142" => data<=x"1285";
				when x"0143" => data<=x"1292";
				when x"0144" => data<=x"129f";
				when x"0145" => data<=x"12ad";
				when x"0146" => data<=x"12ba";
				when x"0147" => data<=x"12c8";
				when x"0148" => data<=x"12d5";
				when x"0149" => data<=x"12e3";
				when x"014a" => data<=x"12f0";
				when x"014b" => data<=x"12fe";
				when x"014c" => data<=x"130b";
				when x"014d" => data<=x"1318";
				when x"014e" => data<=x"1326";
				when x"014f" => data<=x"1333";
				when x"0150" => data<=x"1340";
				when x"0151" => data<=x"134e";
				when x"0152" => data<=x"135b";
				when x"0153" => data<=x"1368";
				when x"0154" => data<=x"1376";
				when x"0155" => data<=x"1383";
				when x"0156" => data<=x"1390";
				when x"0157" => data<=x"139e";
				when x"0158" => data<=x"13ab";
				when x"0159" => data<=x"13b8";
				when x"015a" => data<=x"13c5";
				when x"015b" => data<=x"13d3";
				when x"015c" => data<=x"13e0";
				when x"015d" => data<=x"13ed";
				when x"015e" => data<=x"13fa";
				when x"015f" => data<=x"1407";
				when x"0160" => data<=x"1415";
				when x"0161" => data<=x"1422";
				when x"0162" => data<=x"142f";
				when x"0163" => data<=x"143c";
				when x"0164" => data<=x"1449";
				when x"0165" => data<=x"1456";
				when x"0166" => data<=x"1463";
				when x"0167" => data<=x"1470";
				when x"0168" => data<=x"147d";
				when x"0169" => data<=x"148a";
				when x"016a" => data<=x"1497";
				when x"016b" => data<=x"14a5";
				when x"016c" => data<=x"14b2";
				when x"016d" => data<=x"14bf";
				when x"016e" => data<=x"14cc";
				when x"016f" => data<=x"14d9";
				when x"0170" => data<=x"14e5";
				when x"0171" => data<=x"14f2";
				when x"0172" => data<=x"14ff";
				when x"0173" => data<=x"150c";
				when x"0174" => data<=x"1519";
				when x"0175" => data<=x"1526";
				when x"0176" => data<=x"1533";
				when x"0177" => data<=x"1540";
				when x"0178" => data<=x"154d";
				when x"0179" => data<=x"155a";
				when x"017a" => data<=x"1566";
				when x"017b" => data<=x"1573";
				when x"017c" => data<=x"1580";
				when x"017d" => data<=x"158d";
				when x"017e" => data<=x"159a";
				when x"017f" => data<=x"15a6";
				when x"0180" => data<=x"15b3";
				when x"0181" => data<=x"15c0";
				when x"0182" => data<=x"15cd";
				when x"0183" => data<=x"15d9";
				when x"0184" => data<=x"15e6";
				when x"0185" => data<=x"15f3";
				when x"0186" => data<=x"15ff";
				when x"0187" => data<=x"160c";
				when x"0188" => data<=x"1619";
				when x"0189" => data<=x"1625";
				when x"018a" => data<=x"1632";
				when x"018b" => data<=x"163f";
				when x"018c" => data<=x"164b";
				when x"018d" => data<=x"1658";
				when x"018e" => data<=x"1664";
				when x"018f" => data<=x"1671";
				when x"0190" => data<=x"167e";
				when x"0191" => data<=x"168a";
				when x"0192" => data<=x"1697";
				when x"0193" => data<=x"16a3";
				when x"0194" => data<=x"16b0";
				when x"0195" => data<=x"16bc";
				when x"0196" => data<=x"16c9";
				when x"0197" => data<=x"16d5";
				when x"0198" => data<=x"16e1";
				when x"0199" => data<=x"16ee";
				when x"019a" => data<=x"16fa";
				when x"019b" => data<=x"1707";
				when x"019c" => data<=x"1713";
				when x"019d" => data<=x"171f";
				when x"019e" => data<=x"172c";
				when x"019f" => data<=x"1738";
				when x"01a0" => data<=x"1744";
				when x"01a1" => data<=x"1751";
				when x"01a2" => data<=x"175d";
				when x"01a3" => data<=x"1769";
				when x"01a4" => data<=x"1776";
				when x"01a5" => data<=x"1782";
				when x"01a6" => data<=x"178e";
				when x"01a7" => data<=x"179a";
				when x"01a8" => data<=x"17a7";
				when x"01a9" => data<=x"17b3";
				when x"01aa" => data<=x"17bf";
				when x"01ab" => data<=x"17cb";
				when x"01ac" => data<=x"17d7";
				when x"01ad" => data<=x"17e3";
				when x"01ae" => data<=x"17f0";
				when x"01af" => data<=x"17fc";
				when x"01b0" => data<=x"1808";
				when x"01b1" => data<=x"1814";
				when x"01b2" => data<=x"1820";
				when x"01b3" => data<=x"182c";
				when x"01b4" => data<=x"1838";
				when x"01b5" => data<=x"1844";
				when x"01b6" => data<=x"1850";
				when x"01b7" => data<=x"185c";
				when x"01b8" => data<=x"1868";
				when x"01b9" => data<=x"1874";
				when x"01ba" => data<=x"1880";
				when x"01bb" => data<=x"188c";
				when x"01bc" => data<=x"1898";
				when x"01bd" => data<=x"18a4";
				when x"01be" => data<=x"18b0";
				when x"01bf" => data<=x"18bc";
				when x"01c0" => data<=x"18c7";
				when x"01c1" => data<=x"18d3";
				when x"01c2" => data<=x"18df";
				when x"01c3" => data<=x"18eb";
				when x"01c4" => data<=x"18f7";
				when x"01c5" => data<=x"1903";
				when x"01c6" => data<=x"190e";
				when x"01c7" => data<=x"191a";
				when x"01c8" => data<=x"1926";
				when x"01c9" => data<=x"1932";
				when x"01ca" => data<=x"193d";
				when x"01cb" => data<=x"1949";
				when x"01cc" => data<=x"1955";
				when x"01cd" => data<=x"1960";
				when x"01ce" => data<=x"196c";
				when x"01cf" => data<=x"1978";
				when x"01d0" => data<=x"1983";
				when x"01d1" => data<=x"198f";
				when x"01d2" => data<=x"199a";
				when x"01d3" => data<=x"19a6";
				when x"01d4" => data<=x"19b2";
				when x"01d5" => data<=x"19bd";
				when x"01d6" => data<=x"19c9";
				when x"01d7" => data<=x"19d4";
				when x"01d8" => data<=x"19e0";
				when x"01d9" => data<=x"19eb";
				when x"01da" => data<=x"19f7";
				when x"01db" => data<=x"1a02";
				when x"01dc" => data<=x"1a0d";
				when x"01dd" => data<=x"1a19";
				when x"01de" => data<=x"1a24";
				when x"01df" => data<=x"1a30";
				when x"01e0" => data<=x"1a3b";
				when x"01e1" => data<=x"1a46";
				when x"01e2" => data<=x"1a52";
				when x"01e3" => data<=x"1a5d";
				when x"01e4" => data<=x"1a68";
				when x"01e5" => data<=x"1a74";
				when x"01e6" => data<=x"1a7f";
				when x"01e7" => data<=x"1a8a";
				when x"01e8" => data<=x"1a96";
				when x"01e9" => data<=x"1aa1";
				when x"01ea" => data<=x"1aac";
				when x"01eb" => data<=x"1ab7";
				when x"01ec" => data<=x"1ac2";
				when x"01ed" => data<=x"1ace";
				when x"01ee" => data<=x"1ad9";
				when x"01ef" => data<=x"1ae4";
				when x"01f0" => data<=x"1aef";
				when x"01f1" => data<=x"1afa";
				when x"01f2" => data<=x"1b05";
				when x"01f3" => data<=x"1b10";
				when x"01f4" => data<=x"1b1b";
				when x"01f5" => data<=x"1b26";
				when x"01f6" => data<=x"1b31";
				when x"01f7" => data<=x"1b3c";
				when x"01f8" => data<=x"1b47";
				when x"01f9" => data<=x"1b52";
				when x"01fa" => data<=x"1b5d";
				when x"01fb" => data<=x"1b68";
				when x"01fc" => data<=x"1b73";
				when x"01fd" => data<=x"1b7e";
				when x"01fe" => data<=x"1b89";
				when x"01ff" => data<=x"1b94";
				when x"0200" => data<=x"1b9f";
				when x"0201" => data<=x"1ba9";
				when x"0202" => data<=x"1bb4";
				when x"0203" => data<=x"1bbf";
				when x"0204" => data<=x"1bca";
				when x"0205" => data<=x"1bd5";
				when x"0206" => data<=x"1bdf";
				when x"0207" => data<=x"1bea";
				when x"0208" => data<=x"1bf5";
				when x"0209" => data<=x"1c00";
				when x"020a" => data<=x"1c0a";
				when x"020b" => data<=x"1c15";
				when x"020c" => data<=x"1c20";
				when x"020d" => data<=x"1c2a";
				when x"020e" => data<=x"1c35";
				when x"020f" => data<=x"1c3f";
				when x"0210" => data<=x"1c4a";
				when x"0211" => data<=x"1c55";
				when x"0212" => data<=x"1c5f";
				when x"0213" => data<=x"1c6a";
				when x"0214" => data<=x"1c74";
				when x"0215" => data<=x"1c7f";
				when x"0216" => data<=x"1c89";
				when x"0217" => data<=x"1c94";
				when x"0218" => data<=x"1c9e";
				when x"0219" => data<=x"1ca8";
				when x"021a" => data<=x"1cb3";
				when x"021b" => data<=x"1cbd";
				when x"021c" => data<=x"1cc8";
				when x"021d" => data<=x"1cd2";
				when x"021e" => data<=x"1cdc";
				when x"021f" => data<=x"1ce7";
				when x"0220" => data<=x"1cf1";
				when x"0221" => data<=x"1cfb";
				when x"0222" => data<=x"1d06";
				when x"0223" => data<=x"1d10";
				when x"0224" => data<=x"1d1a";
				when x"0225" => data<=x"1d24";
				when x"0226" => data<=x"1d2f";
				when x"0227" => data<=x"1d39";
				when x"0228" => data<=x"1d43";
				when x"0229" => data<=x"1d4d";
				when x"022a" => data<=x"1d57";
				when x"022b" => data<=x"1d61";
				when x"022c" => data<=x"1d6b";
				when x"022d" => data<=x"1d75";
				when x"022e" => data<=x"1d80";
				when x"022f" => data<=x"1d8a";
				when x"0230" => data<=x"1d94";
				when x"0231" => data<=x"1d9e";
				when x"0232" => data<=x"1da8";
				when x"0233" => data<=x"1db2";
				when x"0234" => data<=x"1dbc";
				when x"0235" => data<=x"1dc5";
				when x"0236" => data<=x"1dcf";
				when x"0237" => data<=x"1dd9";
				when x"0238" => data<=x"1de3";
				when x"0239" => data<=x"1ded";
				when x"023a" => data<=x"1df7";
				when x"023b" => data<=x"1e01";
				when x"023c" => data<=x"1e0b";
				when x"023d" => data<=x"1e14";
				when x"023e" => data<=x"1e1e";
				when x"023f" => data<=x"1e28";
				when x"0240" => data<=x"1e32";
				when x"0241" => data<=x"1e3b";
				when x"0242" => data<=x"1e45";
				when x"0243" => data<=x"1e4f";
				when x"0244" => data<=x"1e58";
				when x"0245" => data<=x"1e62";
				when x"0246" => data<=x"1e6c";
				when x"0247" => data<=x"1e75";
				when x"0248" => data<=x"1e7f";
				when x"0249" => data<=x"1e88";
				when x"024a" => data<=x"1e92";
				when x"024b" => data<=x"1e9c";
				when x"024c" => data<=x"1ea5";
				when x"024d" => data<=x"1eaf";
				when x"024e" => data<=x"1eb8";
				when x"024f" => data<=x"1ec2";
				when x"0250" => data<=x"1ecb";
				when x"0251" => data<=x"1ed4";
				when x"0252" => data<=x"1ede";
				when x"0253" => data<=x"1ee7";
				when x"0254" => data<=x"1ef1";
				when x"0255" => data<=x"1efa";
				when x"0256" => data<=x"1f03";
				when x"0257" => data<=x"1f0d";
				when x"0258" => data<=x"1f16";
				when x"0259" => data<=x"1f1f";
				when x"025a" => data<=x"1f28";
				when x"025b" => data<=x"1f32";
				when x"025c" => data<=x"1f3b";
				when x"025d" => data<=x"1f44";
				when x"025e" => data<=x"1f4d";
				when x"025f" => data<=x"1f56";
				when x"0260" => data<=x"1f60";
				when x"0261" => data<=x"1f69";
				when x"0262" => data<=x"1f72";
				when x"0263" => data<=x"1f7b";
				when x"0264" => data<=x"1f84";
				when x"0265" => data<=x"1f8d";
				when x"0266" => data<=x"1f96";
				when x"0267" => data<=x"1f9f";
				when x"0268" => data<=x"1fa8";
				when x"0269" => data<=x"1fb1";
				when x"026a" => data<=x"1fba";
				when x"026b" => data<=x"1fc3";
				when x"026c" => data<=x"1fcc";
				when x"026d" => data<=x"1fd5";
				when x"026e" => data<=x"1fde";
				when x"026f" => data<=x"1fe7";
				when x"0270" => data<=x"1fef";
				when x"0271" => data<=x"1ff8";
				when x"0272" => data<=x"2001";
				when x"0273" => data<=x"200a";
				when x"0274" => data<=x"2013";
				when x"0275" => data<=x"201b";
				when x"0276" => data<=x"2024";
				when x"0277" => data<=x"202d";
				when x"0278" => data<=x"2035";
				when x"0279" => data<=x"203e";
				when x"027a" => data<=x"2047";
				when x"027b" => data<=x"204f";
				when x"027c" => data<=x"2058";
				when x"027d" => data<=x"2061";
				when x"027e" => data<=x"2069";
				when x"027f" => data<=x"2072";
				when x"0280" => data<=x"207a";
				when x"0281" => data<=x"2083";
				when x"0282" => data<=x"208b";
				when x"0283" => data<=x"2094";
				when x"0284" => data<=x"209c";
				when x"0285" => data<=x"20a5";
				when x"0286" => data<=x"20ad";
				when x"0287" => data<=x"20b5";
				when x"0288" => data<=x"20be";
				when x"0289" => data<=x"20c6";