dds.srd

FPGA中实现基于查找表方式（LUT）的DDS实现

HMR3OH_I8oC_NR0C4s;
R.@@::4gjg:4:j4+:4kM_8N8sO_NOdn_R:fjj6RqjRjih.m)wbaRsRHlk_M4Ns88_ONOn
_dSkY=MN4_8_8sNnOO_jd_
=SqH0MHH_NDb#ENCr_OdS9
AC=s#_C0O;_j
RNH3_MOICH8_0oNC;R4
@sR@4.:g::j44g:+kj:MN4_8_8sNnOO_f.RjR:jqj6jimRh)a.wRHbslMRk48_N8Ns_O_On.Y
S=4kM_8N8sO_NO.n__Sj
qM=HHN0HDE_bN_#CO9r4
=SAsCC#0__OjN;
HMR3OH_I8oC_NR0C4s;
R.@@::4gjg:4:j4+:4kM_8N8sO_NO4n_R:fjj6RqjRjih.m)wbaRsRHlk_M4Ns88_ONOn
_4SkY=MN4_8_8sNnOO_j4_
=SqH0MHH_NDb#ENCr_OnS9
AC=s#_C0O;_j
RNH3_MOICH8_0oNC;R4
@sR@4.:g::j44g:+kj:MN4_8_8sNnOOR:fjj6RqjRjih.m)wbaRsRHlk_M4Ns88_ONOnY
S=4kM_8N8sO_NOjn_
=SqH0MHH_NDb#ENCr_O.S9
AC=s#_C0O;_j
RNH3_MOICH8_0oNC;R4
@sR@4.:U::j46U:+Nj:8_8sNrOOjf9RjR:jqj6jiwR7wbARsRHlNs88_ONOr
j9SNT=8_8sNrOOjS9
B=p)k_M4Ns88_ONOn__cj1
S ka=MN4_8_8sNnOO_j(_
pSBiD=O	
_OSq7=747_jjG4_F#DIj_Q_j1__;Gd
RobTb;NRD3#N_O	bRHMgg(gU;Un
Rob7b;NRD3#N_O	bRHMgjg(d;U4
RNH3Ds0_HFsolMNCNR"8_8sN"OO;H
NRD3OFRO	"hhm 
";N3HROODF	8_Co"CRsCH#"N;
HNR3#O$M_#sCC"0RMM:k48_N8Ns_O_Onc
";N3HRNM#$OC_#0MR":4kM_8N8sO_NO(n_"N;
H#R3D	NO_#HM0(RggUgUns;
R.@@::4UjU:4:j6+:8N8sO_NO9r4R:fjj6RqjRji7AwwRHbsl8RN8Ns_O4Or9T
S=8N8sO_NO9r4
pSB)M=k48_N8Ns_O_On4j4_
 S1aM=k48_N8Ns_O_On.
_jSiBp=	OD_SO
77=q7j_4G_4j#IDF__Q41o;
b;RTN3bR#ODN	H_bMURgjUnU(o;
b;R7N3bR#ODN	H_bMgRg6nUd.N;
HsR30FD_sMHoNRlC"8N8sO_NO
";N3HROODF	hR"m"h ;H
NRD3OF_O	CC8oRH"s#;C"
RNH3$N#MsO_C0#CR:"Mk_M4Ns88_ONOn4_4"N;
HNR3#O$M_0#CR:"Mk_M4Ns88_ONOn"_.;H
NRD3#N_O	H0M#RjgUn(UU;R
s@:@.4jU:::4U6:+jNs88_ONOrR.9fjj:Rjq6j7iRwRwAblsHR8N8sO_NO9r.
=STNs88_ONOr
.9S)Bp=4kM_8N8sO_NO4n_c
_jSa1 =4kM_8N8sO_NOjn_
pSBiD=O	
_OSq7=747_jjG4_F#DI._Q_
1;oTbR;RNb3N#DOb	_HgMRU4.6c
(;o7bR;RNb3N#DOb	_HgMRgccjc
4;N3HRs_0DFosHMCNlR8"N8Ns_O;O"
RNH3FODO"	Rh mh"N;
HOR3D	FO_oC8CsR"H"#C;H
NR#3N$_MOsCC#0MR":4kM_8N8sO_NO4n_c
";N3HRNM#$OC_#0MR":4kM_8N8sO_NO;n"
RNH3N#DOH	_MR#0g6U.4;c(
@sR@4.:U::j46U:+Nj:8_8sNrOOdf9RjR:jqj6jiwR7wbARsRHlNs88_ONOr
d9SNT=8_8sN_OOH__jH9rd
pSB)M=k48_N8Ns_O_On4j._
 S1aM=k48_N8Ns_O_Ond
_jSiBp=	OD_SO
77=q7j_4G_4j#IDF__Qd1o;
b;RTN3bR#ODN	H_bMURgcn.((o;
b;R7N3bR#ODN	H_bMgRg.U.44N;
HsR30FD_sMHoNRlC"8N8sO_NO
";N3HROODF	hR"m"h ;H
NRD3OF_O	CC8oRH"s#;C"
RNH3$N#MsO_C0#CR:"Mk_M4Ns88_ONOn._4"N;
HNR3#O$M_0#CR:"Mk_M4Ns88_ONOn"_d;H
NRD3#N_O	H0M#RcgU.((n;R
s@:@.4jU:::4U6:+jNs88_ONOrRc9fjj:Rjq6j7iRwRwAblsHR8N8sO_NO9rc
=STNs88_ONOr
c9S)Bp=4kM_8N8sO_NO4n_j
_jSa1 =4kM_8N8sO_NO6n__Sj
B=piO_D	O7
S=7q7_G4j4#j_D_FIQ1c_;b
oRNT;b#R3D	NO_MbHRngU4(nn;b
oRN7;b#R3D	NO_MbHRjggd4g.;H
NR03sDs_FHNoMl"CRNs88_ONO"N;
HOR3D	FORm"hh; "
RNH3FODOC	_8RoC"#sHC
";N3HRNM#$OC_s#RC0"kM:MN4_8_8sNnOO_"4j;H
NR#3N$_MO#RC0"kM:MN4_8_8sNnOO_;6"
RNH3N#DOH	_MR#0g4Unn;n(
@sR@4.:U::j46U:+Nj:8_8sNrOO6f9RjR:jqj6jiwR7wbARsRHlNs88_ONOr
69SNT=8_8sNrOO6S9
B=p)k_M4Ns88_ONOn__gj1
S ka=MN4_8_8sNnOO_jU_
pSBiD=O	
_OSq7=747_jjG4_F#DI6_Q_
1;oTbR;RNb3N#DOb	_HgMRU.U6c
n;o7bR;RNb3N#DOb	_HgMRUcU4n
4;N3HRs_0DFosHMCNlR8"N8Ns_O;O"
RNH3FODO"	Rh mh"N;
HOR3D	FO_oC8CsR"H"#C;H
NR#3N$_MOsCC#0MR":4kM_8N8sO_NOgn_"N;
HNR3#O$M_0#CR:"Mk_M4Ns88_ONOn"_U;H
NRD3#N_O	H0M#RUgU44cn;R
s@:@.4jU:::4U6:+jNs88_ONOrRn9fjj:Rjq6j7iRwRwAblsHR8N8sO_NO9rn
=STNs88_ONOr
n9S)Bp=4kM_8N8sO_NOnn__Sj
1= ak_M4Ns88_ONOn__4jB
SpOi=DO	_
=S7q_7744jGjD_#FQI_n;_1
RobTb;NRD3#N_O	bRHMgUgjU;.6
Rob7b;NRD3#N_O	bRHMg(U6U;U.
RNH3Ds0_HFsolMNCNR"8_8sN"OO;H
NRD3OFRO	"hhm 
";N3HROODF	8_Co"CRsCH#"N;
HNR3#O$M_#sCC"0RMM:k48_N8Ns_O_Onn
";N3HRNM#$OC_#0MR":4kM_8N8sO_NO4n_"N;
H#R3D	NO_#HM0URg6U(U.s;
R.@@::4UjU:4:j6+:8N8sO_NO9r(R:fjj6RqjRji7AwwRHbsl8RN8Ns_O(Or9T
S=8N8sO_NO9r(
pSB)M=k48_N8Ns_O_On4jU_
 S1aM=k48_N8Ns_O_On4jd_
pSBiD=O	
_OSq7=747_jjG4_F#DI(_Q_
1;oTbR;RNb3N#DOb	_HgMRgcd.j
c;o7bR;RNb3N#DOb	_HgMRUddcj
d;N3HRs_0DFosHMCNlR8"N8Ns_O;O"
RNH3FODO"	Rh mh"N;
HOR3D	FO_oC8CsR"H"#C;H
NR#3N$_MOsCC#0MR":4kM_8N8sO_NO4n_U
";N3HRNM#$OC_#0MR":4kM_8N8sO_NO4n_d
";N3HR#ODN	M_H#g0RUddcj
d;s@R@.U:4:4j:U+:6j8:N8Ns_OUOr9jRf:qjR6ijjRw7wAsRbHNlR8_8sNrOOUS9
T8=N8Ns_OUOr9B
Spk)=MN4_8_8sNnOO__4nj1
S ka=MN4_8_8sNnOO__4gjB
SpOi=DO	_
=S7q_7744jGjD_#FQI_U;_1
RobTb;NRD3#N_O	bRHMg6g.(;jd
Rob7b;NRD3#N_O	bRHMgcU4g;.c
RNH3Ds0_HFsolMNCNR"8_8sN"OO;H
NRD3OFRO	"hhm 
";N3HROODF	8_Co"CRsCH#"N;
HNR3#O$M_#sCC"0RMM:k48_N8Ns_O_On4;n"
RNH3$N#M#O_C"0RMM:k48_N8Ns_O_On4;g"
RNH3N#DOH	_MR#0gcU4g;.c
@sR@4.:U::j46U:+Nj:8_8sNrOOgf9RjR:jqj6jiwR7wbARsRHlNs88_ONOr
g9SNT=8_8sNrOOgS9
B=p)k_M4Ns88_ONOn6_4_Sj
1= ak_M4Ns88_ONOn(_4_Sj
B=piO_D	O7
S=7q7_G4j4#j_D_FIQYg_;b
oRNT;b#R3D	NO_MbHRdgg(.cn;b
oRN7;b#R3D	NO_MbHRgg(gnUU;H
NR03sDs_FHNoMl"CRNs88_ONO"N;
HOR3D	FORm"hh; "
RNH3FODOC	_8RoC"#sHC
";N3HRNM#$OC_s#RC0"kM:MN4_8_8sNnOO_"46;H
NR#3N$_MO#RC0"kM:MN4_8_8sNnOO_"4(;H
NRD3#N_O	H0M#Rgg(gnUU;R
s@:@.446:.6:4:R4gfjj:Rjq6jmiRAudd]sRbH8lRN_0NF_k0brN8(S9
u=q78NN0_0Fkr
(9S8q=N_0NF_k0O9r(;R
s@:@.446:.6:4:R4gfjj:Rjq6jmiRAudd]sRbH8lRN_0NF_k0brN8nS9
u=q78NN0_0Fkr
n9S8q=N_0NF_k0O9rn;R
s@:@.446:.6:4:R4gfjj:Rjq6jmiRAudd]sRbH8lRN_0NF_k0brN86S9
u=q78NN0_0Fkr
69S8q=N_0NF_k0O9r6;R
s@:@.446:.6:4:R4gfjj:Rjq6jmiRAudd]sRbH8lRN_0NF_k0brN8cS9
u=q78NN0_0Fkr
c9S8q=N_0NF_k0O9rc;R
s@:@.446:.6:4:R4gfjj:Rjq6jmiRAudd]sRbH8lRN_0NF_k0brN8dS9
u=q78NN0_0Fkr
d9S8q=N_0NF_k0O9rd;R
s@:@.446:.6:4:R4gfjj:Rjq6jmiRAudd]sRbH8lRN_0NF_k0brN8.S9
u=q78NN0_0Fkr
.9S8q=N_0NF_k0O9r.;R
s@:@.446:.6:4:R4gfjj:Rjq6jmiRAudd]sRbH8lRN_0NF_k0brN84S9
u=q78NN0_0Fkr
49S8q=N_0NF_k0O9r4;R
s@:@.446:.6:4:R4gfjj:Rjq6jmiRAudd]sRbH8lRN_0NF_k0brN8jS9
u=q78NN0_0Fkr
j9S8q=N_0NF_k0O9rj;R
s@:@.44d:4d:4:R4Ufjj:Rjq6jQiRARddblsHRlsF_08NNN_b89r(
=SYs_Fl8NN0_(Or9u
Sqs7=F8l_Nr0N(
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.44d:4d:4:R4Ufjj:Rjq6jQiRARddblsHRlsF_08NNN_b89rn
=SYs_Fl8NN0_nOr9u
Sqs7=F8l_Nr0Nn
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.44d:4d:4:R4Ufjj:Rjq6jQiRARddblsHRlsF_08NNN_b89r6
=SYs_Fl8NN0_6Or9u
Sqs7=F8l_Nr0N6
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.44d:4d:4:R4Ufjj:Rjq6jQiRARddblsHRlsF_08NNN_b89rc
=SYs_Fl8NN0_cOr9u
Sqs7=F8l_Nr0Nc
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.44d:4d:4:R4Ufjj:Rjq6jQiRARddblsHRlsF_08NNN_b89rd
=SYs_Fl8NN0_dOr9u
Sqs7=F8l_Nr0Nd
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.44d:4d:4:R4Ufjj:Rjq6jQiRARddblsHRlsF_08NNN_b89r.
=SYs_Fl8NN0_.Or9u
Sqs7=F8l_Nr0N.
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.44d:4d:4:R4Ufjj:Rjq6jQiRARddblsHRlsF_08NNN_b89r4
=SYs_Fl8NN0_4Or9u
Sqs7=F8l_Nr0N4
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.44d:4d:4:R4Ufjj:Rjq6jQiRARddblsHRlsF_08NNN_b89rj
=SYs_Fl8NN0_jOr9u
Sqs7=F8l_Nr0Nj
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.44c:.c:4:R4gfjj:Rjq6jmiRAudd]sRbHslRFNl_8_8sbrN8gS9
u=q7s_FlNs88r
g9Seq=B
B;s@R@.c:4::4.44c:gjRf:qjR6ijjRdmAdRu]blsHRlsF_8N8sN_b89rU
qSu7F=sl8_N8Usr9q
S=lsF_8N8s__4O9rU;R
s@:@.44c:.c:4:R4gfjj:Rjq6jmiRAudd]sRbHslRFNl_8_8sbrN8(S9
u=q7s_FlNs88r
(9Ssq=FNl_8_8s4r_O(
9;s@R@.c:4::4.44c:gjRf:qjR6ijjRdmAdRu]blsHRlsF_8N8sN_b89rn
qSu7F=sl8_N8nsr9q
S=lsF_8N8s__4O9rn;R
s@:@.44c:.c:4:R4gfjj:Rjq6jmiRAudd]sRbHslRFNl_8_8sbrN86S9
u=q7s_FlNs88r
69Ssq=FNl_8_8s4r_O6
9;s@R@.c:4::4.44c:gjRf:qjR6ijjRdmAdRu]blsHRlsF_8N8sN_b89rc
qSu7F=sl8_N8csr9q
S=lsF_8N8s__4O9rc;R
s@:@.44c:.c:4:R4gfjj:Rjq6jmiRAudd]sRbHslRFNl_8_8sbrN8dS9
u=q7s_FlNs88r
d9Ssq=FNl_8_8s4r_Od
9;s@R@.c:4::4.44c:gjRf:qjR6ijjRdmAdRu]blsHRlsF_8N8sN_b89r.
qSu7F=sl8_N8.sr9q
S=lsF_8N8s__4O9r.;R
s@:@.44c:.c:4:R4gfjj:Rjq6jmiRAudd]sRbHslRFNl_8_8sbrN84S9
u=q7s_FlNs88r
49Ssq=FNl_8_8s4r_O4
9;s@R@.c:4::4.44c:gjRf:qjR6ijjRdmAdRu]blsHRlsF_8N8sN_b89rj
qSu7F=sl8_N8jsr9q
S=lsF_8N8s__4O9rj;R
s@:@.4d.:::4.4f6RjR:jqj6jiARQdbdRsRHlH0MHH_NDb#ENCN_b89rg
=SYH0MHH_NDb#ENCr_OgS9
u=q7H0MHH_NDb#ENC9rg;H
NR#3HbRN84N;
HkR3#_Cs#CCDO80C_8bNR
j;s@R@..:4:4d:.6:4R:fjj6RqjRjiQdAdRHbslMRHHN0HDE_bN_#CbrN8US9
YM=HHN0HDE_bN_#CO9rU
qSu7M=HHN0HDE_bNr#CU
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.4d.:::4.4f6RjR:jqj6jiARQdbdRsRHlH0MHH_NDb#ENCN_b89r(
=SYH0MHH_NDb#ENCr_O(S9
u=q7H0MHH_NDb#ENC9r(;H
NR#3HbRN84N;
HkR3#_Cs#CCDO80C_8bNR
j;s@R@..:4:4d:.6:4R:fjj6RqjRjiQdAdRHbslMRHHN0HDE_bN_#CbrN8nS9
YM=HHN0HDE_bN_#CO9rn
qSu7M=HHN0HDE_bNr#Cn
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.4d.:::4.4f6RjR:jqj6jiARQdbdRsRHlH0MHH_NDb#ENCN_b89r6
=SYH0MHH_NDb#ENCr_O6S9
u=q7H0MHH_NDb#ENC9r6;H
NR#3HbRN84N;
HkR3#_Cs#CCDO80C_8bNR
j;s@R@..:4:4d:.6:4R:fjj6RqjRjiQdAdRHbslMRHHN0HDE_bN_#CbrN8cS9
YM=HHN0HDE_bN_#CO9rc
qSu7M=HHN0HDE_bNr#Cc
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.4d.:::4.4f6RjR:jqj6jiARQdbdRsRHlH0MHH_NDb#ENCN_b89rd
=SYH0MHH_NDb#ENCr_OdS9
u=q7H0MHH_NDb#ENC9rd;H
NR#3HbRN84N;
HkR3#_Cs#CCDO80C_8bNR
j;s@R@..:4:4d:.6:4R:fjj6RqjRjiQdAdRHbslMRHHN0HDE_bN_#CbrN8.S9
YM=HHN0HDE_bN_#CO9r.
qSu7M=HHN0HDE_bNr#C.
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.4d.:::4.4f6RjR:jqj6jiARQdbdRsRHlH0MHH_NDb#ENCN_b89r4
=SYH0MHH_NDb#ENCr_O4S9
u=q7H0MHH_NDb#ENC9r4;H
NR#3HbRN84N;
HkR3#_Cs#CCDO80C_8bNR
j;s@R@..:4:4d:.6:4R:fjj6RqjRjiQdAdRHbslMRHHN0HDE_bN_#CbrN8jS9
YM=HHN0HDE_bN_#CO9rj
qSu7M=HHN0HDE_bNr#Cj
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.444:.4:4:R4.fjj:Rjq6jQiRARddblsHRb	_Ng8r9Y
S=O	_r
g9S7uq=g	r9N;
HHR3#8bNR
4;N3HRks#C_D#CCCO08N_b8;Rj
@sR@4.:4.:4::444f.RjR:jqj6jiARQdbdRsRHl	N_b89rU
=SY	r_OUS9
u=q7	9rU;H
NR#3HbRN84N;
HkR3#_Cs#CCDO80C_8bNR
j;s@R@.4:4::4.444:.jRf:qjR6ijjRdQAdsRbH	lR_8bNr
(9S	Y=_(Or9u
Sq	7=r;(9
RNH3bH#N48R;H
NR#3kC#s_CODC0_C8bRN8js;
R.@@::4444.:4.:4R:fjj6RqjRjiQdAdRHbsl_R	brN8nS9
Y_=	O9rn
qSu7r=	n
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.444:.4:4:R4.fjj:Rjq6jQiRARddblsHRb	_N68r9Y
S=O	_r
69S7uq=6	r9N;
HHR3#8bNR
4;N3HRks#C_D#CCCO08N_b8;Rj
@sR@4.:4.:4::444f.RjR:jqj6jiARQdbdRsRHl	N_b89rc
=SY	r_OcS9
u=q7	9rc;H
NR#3HbRN84N;
HkR3#_Cs#CCDO80C_8bNR
j;s@R@.4:4::4.444:.jRf:qjR6ijjRdQAdsRbH	lR_8bNr
d9S	Y=_dOr9u
Sq	7=r;d9
RNH3bH#N48R;H
NR#3kC#s_CODC0_C8bRN8js;
R.@@::4444.:4.:4R:fjj6RqjRjiQdAdRHbsl_R	brN8.S9
Y_=	O9r.
qSu7r=	.
9;N3HRHN#b8;R4
RNH3Ck#sC_#D0COCb8_Nj8R;R
s@:@.444:.4:4:R4.fjj:Rjq6jQiRARddblsHRb	_N48r9Y
S=O	_r
49S7uq=4	r9N;
HHR3#8bNR
4;N3HRks#C_D#CCCO08N_b8;Rj
@sR@4.:4.:4::444f.RjR:jqj6jiARQdbdRsRHl	N_b89rj
=SY	r_OjS9
u=q7	9rj;H
NR#3HbRN84N;
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