* Z:\home\khalils\Downloads\files\data\raw_asc\b96252a5ca06_74HC4046A_H.asc
* Generated by LTspice 26.0.1 for Windows.
A1 SIG1 0 0 0 0 0 N002 0 BUF ref={vcc1/2}
A11 COMP1 0 0 0 0 0 N009 0 BUF ref={vcc1/2}
M1 PC2 N041 0 0 MHCNEN W=250u L=2.5u
M2 PC2 N034 VCC VCC MHCPEN W=500u L=2.4u
A3 N003 0 0 0 0 N004 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
A23 N007 0 0 0 0 0 N008 0 BUF td={tdel1} tripdt={tripdt1} ref=0.5 vhigh={vcc1}
A13 N010 0 0 0 0 N005 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
A14 N005 0 0 0 0 N024 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
A4 N004 0 0 0 0 N016 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
A39 N020 0 0 0 0 N021 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
A81 N027 0 0 0 0 N032 0 0 BUF td={tdel1} tripdt={tripdt1}
A82 N032 0 0 0 0 N033 0 0 BUF td={tdel1} tripdt={tripdt1} ref=0.5 Vhigh={vcc1}
A73 N035 0 0 0 0 N031 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
A72 N036 0 0 0 0 N035 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
A31 0 N011 0 N016 0 N012 0 0 AND td={tdel1} tripdt={tripdt1}
A32 0 N024 0 N020 0 N025 0 0 AND td={tdel1} tripdt={tripdt1}
A33 0 N012 0 N017 0 N018 0 0 AND td={tdel1} tripdt={tripdt1}
A35 0 N012 0 N018 0 N019 0 0 AND td={1.2*tdel1} tripdt={tripdt1}
A34 0 N018 0 N025 0 N017 0 0 AND td={tdel1} tripdt={tripdt1}
A36 0 N017 0 N025 0 N026 0 0 AND td={1.2*tdel1} tripdt={tripdt1}
A37 0 N019 0 N011 0 N020 0 0 AND td={tdel1} tripdt={tripdt1}
A38 0 N020 0 N026 0 N011 0 0 AND td={tdel1} tripdt={tripdt1}
A51 0 N016 0 N027 0 N028 0 0 AND td={tdel1} tripdt={tripdt1}
A52 0 N028 N031 N030 0 N027 0 0 AND td={tdel1} tripdt={tripdt1}
A53 0 N028 0 N029 0 N030 0 0 AND td={tdel1} tripdt={tripdt1}
A54 0 N030 0 N031 0 N029 0 0 AND td={tdel1} tripdt={tripdt1}
A61 0 N038 N031 N037 0 N039 0 0 AND td={tdel1} tripdt={tripdt1}
A64 0 N042 0 N037 0 N038 0 0 AND td={tdel1} tripdt={tripdt1}
A63 0 N031 0 N038 0 N042 0 0 AND td={tdel1} tripdt={tripdt1}
A62 0 N039 N024 0 0 N037 0 0 AND td={tdel1} tripdt={tripdt1}
A84 0 N027 0 N039 0 N043 0 0 AND td={tdel1} tripdt={tripdt1}
A71 N030 N028 0 N037 N038 N036 0 0 AND td={tdel1} tripdt={tripdt1}
A22 N006 0 0 0 0 N007 0 0 BUF td={tdel1} tripdt={tripdt1}
A2 N002 0 0 0 0 N003 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
A12 N009 0 0 0 0 N010 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
A41 N022 0 0 0 0 0 N023 0 BUF td={tdel1} tripdt={tripdt1} ref=0.5 vhigh={vcc1}
A86 N044 0 0 0 0 0 N045 0 BUF td={tdel1} tripdt={tripdt1} ref=0.5 vhigh={vcc1}
A85 N043 0 0 0 0 N044 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
A83 N039 0 0 0 0 N040 0 0 BUF td={2*tdel1} tripdt={tripdt1} ref=0.5 Vhigh={vcc1}
A18 nf 0 0 0 0 0 N015 0 MODULATOR mark={fmax} space={fmin}
A19 N015 0 0 0 0 0 N014 0 BUF ref=0 Vhigh={vcc1} vlow=0 td={tdel1} tripdt={tripdt1}
R10 N033 N034 1k
C6 VCC N034 10p
R11 N040 N041 1k
C7 N041 0 10p
A21 0 N004 0 N005 0 N006 0 0 XOR td={tdel1} tripdt={tripdt1}
A40 N021 0 0 0 0 N022 0 0 BUF td={0.5*tdel1} tripdt={tripdt1}
B1 nf 0 V=Table(V(VCOin), 0,0, 0.9, 0, {vcc1-0.9}, 1)
R7 VCOin 0 1G
R13 VCOout N013 100
A5 0 N014 0 INH 0 0 N013 0 OR ref={vcc1/2} Vhigh={vcc1} vlow=0
R4 INH 0 1G
R3 C1A 0 1G
R9 R2 0 1G
R15 R1 0 1G
R17 C1B 0 1G
B2 SIG1 0 V=V(vcch,0)*(1-tanh(v(sig,vcch)))
B3 VCCH 0 V=0.5*V(vcc,0)
R23 SIG SIG1 1e6
B4 COMP1 0 V=V(vcch,0)*(1-tanh(v(comp,vcch)))
R24 COMP COMP1 1e6
R5 N008 PC1 100
R6 N023 PC3 100
R8 N045 PCP 100
B5 N001 0 V=limit(0,V(vcoin,0),{vcc1-2})
R12 N001 DEMout 50
.model NMOS NMOS
.model PMOS PMOS
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.mos
************************************************
* NOMINAL N-Channel Transistor *
* UCB-3 Parameter Set *
* HIGH-SPEED CMOS Logic Family *
* 10-Jan.-1995 *
************************************************
.Model MHCNEN NMOS (
+LEVEL = 3
+KP = 45.3E-6
+VTO = 0.72
+TOX = 51.5E-9
+NSUB = 2.8E15
+GAMMA = 0.94e-6
+PHI = 0.65
+VMAX = 150E3
+RS = 40
+RD = 40
+XJ = 0.11E-6
+LD = 0.52E-6
+DELTA = 0.315
+THETA = 0.054
+ETA = 0.025
+KAPPA = 0.0
+WD = 0.0 )
***********************************************
* NOMINAL P-Channel transistor *
* UCB-3 Parameter Set *
* HIGH-SPEED CMOS Logic Family *
* 10-Jan.-1995 *
***********************************************
.Model MHCPEN PMOS (
+LEVEL = 3
+KP = 22.1E-6
+VTO = -0.71
+TOX = 51.5E-9
+NSUB = 3.3E16
+GAMMA = 0.92e-6
+PHI = 0.65
+VMAX = 970E3
+RS = 80
+RD = 80
+XJ = 0.63E-6
+LD = 0.23E-6
+DELTA = 2.24
+THETA = 0.108
+ETA = 0.322
+KAPPA = 0.0
+WD = 0.0 )
* VCC/2
* Buffered VCOin
* x_delay
* x_delay
* x_delay
* x_delay
* "x_delay" means this gate required a different delay\nto solve a self oscillation problem caused by the feedback.
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 2124 1976
WIRE -560 -208 -592 -208
WIRE -432 -208 -480 -208
WIRE -368 -208 -432 -208
WIRE -80 -208 -128 -208
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WIRE 32 -176 32 -208
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WIRE 704 1264 704 832
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WIRE 160 1312 48 1312
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WIRE 816 1360 816 1296
WIRE 816 1360 320 1360
FLAG 1376 384 PC3
IOPIN 1376 384 Out
FLAG 1264 720 VCC
IOPIN 1264 720 In
FLAG 1264 960 PC2
IOPIN 1264 960 Out
FLAG 1376 1296 PCP
IOPIN 1376 1296 Out
FLAG -592 64 SIG1
FLAG -592 160 COMP1
FLAG 1376 96 PC1
IOPIN 1376 96 Out
FLAG -432 608 nf
FLAG -560 768 0
FLAG -608 880 VCOin
IOPIN -608 880 In
FLAG -608 320 VCOout
IOPIN -608 320 Out
FLAG -576 560 0
FLAG -608 448 INH
IOPIN -608 448 In
FLAG -608 1216 C1A
IOPIN -608 1216 In
FLAG -448 1216 0
FLAG -608 1104 R2
IOPIN -608 1104 In
FLAG -448 1104 0
FLAG -608 992 R1
IOPIN -608 992 In
FLAG -448 992 0
FLAG -448 880 0
FLAG -608 1328 C1B
IOPIN -608 1328 In
FLAG -448 1328 0
FLAG 912 -64 0
FLAG 1024 -208 VCCH
FLAG -432 -64 0
FLAG -592 -208 SIG
IOPIN -592 -208 In
FLAG -368 -208 SIG1
FLAG 32 -64 0
FLAG -128 -208 COMP
IOPIN -128 -208 In
FLAG 96 -208 COMP1
FLAG 1264 1184 0
FLAG 1376 -80 VSS
IOPIN 1376 -80 Out
FLAG 1184 -80 0
FLAG 496 -64 0
FLAG 672 -208 DEMout
IOPIN 672 -208 Out
SYMBOL Digital\\buf1 -528 0 R0
WINDOW 3 21 90 Left 0
SYMATTR Value ref={vcc1/2}
SYMATTR InstName A1
SYMBOL Digital\\buf1 -528 96 R0
WINDOW 3 19 87 Left 0
SYMATTR Value ref={vcc1/2}
SYMATTR InstName A11
SYMBOL nmos 1120 1008 R0
SYMATTR InstName M1
SYMATTR Value MHCNEN
SYMATTR Value2 W=250u L=2.5u
SYMBOL pmos 1120 912 M180
SYMATTR InstName M2
SYMATTR Value MHCPEN
SYMATTR Value2 W=500u L=2.4u
SYMBOL Digital\\inv -256 0 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A3
SYMBOL Digital\\buf1 1152 32 R0
WINDOW 3 -47 95 Invisible 0
WINDOW 39 -74 110 Left 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR SpiceLine vhigh={vcc1}
SYMATTR InstName A23
SYMATTR Value2 ref=0.5
SYMBOL Digital\\inv -256 96 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A13
SYMBOL Digital\\inv -64 384 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A14
SYMBOL Digital\\inv -64 288 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A4
SYMBOL Digital\\inv 960 320 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A39
SYMBOL Digital\\inv 768 768 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A81
SYMBOL Digital\\inv 864 768 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A82
SYMATTR Value2 ref=0.5
SYMATTR SpiceLine Vhigh={vcc1}
SYMBOL Digital\\inv 224 944 M0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A73
SYMBOL Digital\\inv 336 944 M0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A72
SYMBOL Digital\\and 192 272 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A31
SYMBOL Digital\\and 192 400 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A32
SYMBOL Digital\\and 400 272 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A33
SYMBOL Digital\\and 576 272 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={1.2*tdel1} tripdt={tripdt1}
SYMATTR InstName A35
SYMBOL Digital\\and 400 400 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A34
SYMBOL Digital\\and 576 432 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={1.2*tdel1} tripdt={tripdt1}
SYMATTR InstName A36
SYMBOL Digital\\and 736 304 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A37
SYMBOL Digital\\and 736 432 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A38
SYMBOL Digital\\and 192 640 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A51
SYMBOL Digital\\and 192 768 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A52
SYMBOL Digital\\and 416 720 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A53
SYMBOL Digital\\and 416 848 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A54
SYMBOL Digital\\and 192 1120 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A61
SYMBOL Digital\\and 416 1168 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A64
SYMBOL Digital\\and 416 1040 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A63
SYMBOL Digital\\and 192 1248 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A62
SYMBOL Digital\\and 880 1216 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A84
SYMBOL Digital\\and 592 928 M0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A71
SYMBOL Digital\\inv 1056 32 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A22
SYMBOL Digital\\inv -368 0 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A2
SYMBOL Digital\\inv -368 96 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A12
SYMBOL Digital\\buf1 1152 320 R0
WINDOW 3 -47 95 Invisible 0
WINDOW 39 -87 108 Left 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR SpiceLine vhigh={vcc1}
SYMATTR InstName A41
SYMATTR Value2 ref=0.5
SYMBOL Digital\\buf1 1136 1232 R0
WINDOW 3 -47 95 Invisible 0
WINDOW 39 -63 111 Left 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR SpiceLine vhigh={vcc1}
SYMATTR InstName A86
SYMATTR Value2 ref=0.5
SYMBOL Digital\\inv 1024 1232 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A85
SYMBOL Digital\\inv 864 1024 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={2*tdel1} tripdt={tripdt1}
SYMATTR InstName A83
SYMATTR Value2 ref=0.5
SYMATTR SpiceLine Vhigh={vcc1}
SYMBOL SpecialFunctions\\modulate -400 608 R0
WINDOW 3 -98 114 Left 0
SYMATTR Value mark={fmax} space={fmin}
SYMATTR InstName A18
SYMBOL Digital\\buf1 -256 256 M0
WINDOW 3 -24 -6 Left 0
SYMATTR Value ref=0 Vhigh={vcc1} vlow=0
SYMATTR InstName A19
SYMATTR Value2 td={tdel1} tripdt={tripdt1}
SYMBOL res 976 848 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R10
SYMATTR Value 1k
SYMBOL cap 1072 736 R0
WINDOW 3 24 57 Left 0
SYMATTR Value 10p
SYMATTR InstName C6
SYMBOL res 976 1104 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R11
SYMATTR Value 1k
SYMBOL cap 1072 1104 R0
WINDOW 3 24 57 Left 0
SYMATTR Value 10p
SYMATTR InstName C7
SYMBOL Digital\\xor 608 16 R0
WINDOW 3 16 52 Invisible 0
SYMATTR Value td={tdel1} tripdt={tripdt1}
SYMATTR InstName A21
SYMBOL Digital\\inv 1056 320 R0
WINDOW 3 -52 103 Invisible 0
SYMATTR Value td={0.5*tdel1} tripdt={tripdt1}
SYMATTR InstName A40
SYMBOL bv -560 656 R0
WINDOW 3 31 120 Left 0
SYMATTR Value V=Table(V(VCOin), 0,0, 0.9, 0, {vcc1-0.9}, 1)
SYMATTR InstName B1
SYMBOL res -576 896 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R7
SYMATTR Value 1G
SYMBOL res -560 336 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R13
SYMATTR Value 100
SYMBOL Digital\\or -400 272 M0
WINDOW 3 -94 126 Left 0
SYMATTR Value ref={vcc1/2} Vhigh={vcc1} vlow=0
SYMATTR InstName A5
SYMBOL res -592 448 R0
SYMATTR InstName R4
SYMATTR Value 1G
SYMBOL res -576 1232 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R3
SYMATTR Value 1G
SYMBOL res -576 1120 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R9
SYMATTR Value 1G
SYMBOL res -576 1008 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R15
SYMATTR Value 1G
SYMBOL res -576 1344 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R17
SYMATTR Value 1G
SYMBOL bv -432 -192 R0
SYMATTR InstName B2
SYMATTR Value V=V(vcch,0)*(1-tanh(v(sig,vcch)))
SYMBOL bv 912 -192 R0
SYMATTR InstName B3
SYMATTR Value V=0.5*V(vcc,0)
SYMBOL res -576 -192 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R23
SYMATTR Value 1e6
SYMBOL bv 32 -192 R0
SYMATTR InstName B4
SYMATTR Value V=V(vcch,0)*(1-tanh(v(comp,vcch)))
SYMBOL res -96 -192 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R24
SYMATTR Value 1e6
SYMBOL res 1232 112 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL res 1216 400 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R6
SYMATTR Value 100
SYMBOL res 1216 1312 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R8
SYMATTR Value 100
SYMBOL bv 496 -192 R0
SYMATTR InstName B5
SYMATTR Value V=limit(0,V(vcoin,0),{vcc1-2})
SYMBOL res 528 -192 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R12
SYMATTR Value 50
TEXT 1544 -64 Left 0 !************************************************\n*         NOMINAL N-Channel Transistor         *\n*            UCB-3 Parameter Set               *\n*         HIGH-SPEED CMOS Logic Family         *\n*                10-Jan.-1995                  *\n************************************************\n.Model MHCNEN NMOS (\n+LEVEL = 3\n+KP    = 45.3E-6\n+VTO   = 0.72\n+TOX   = 51.5E-9\n+NSUB  = 2.8E15\n+GAMMA = 0.94e-6\n+PHI   = 0.65\n+VMAX  = 150E3\n+RS    = 40\n+RD    = 40\n+XJ    = 0.11E-6\n+LD    = 0.52E-6\n+DELTA = 0.315\n+THETA = 0.054\n+ETA   = 0.025\n+KAPPA = 0.0\n+WD    = 0.0 )\n \n***********************************************\n*        NOMINAL P-Channel transistor         *\n*           UCB-3 Parameter Set               *\n*         HIGH-SPEED CMOS Logic Family        *\n*               10-Jan.-1995                  *\n***********************************************\n.Model MHCPEN PMOS (\n+LEVEL = 3\n+KP    = 22.1E-6\n+VTO   = -0.71\n+TOX   = 51.5E-9\n+NSUB  = 3.3E16\n+GAMMA = 0.92e-6\n+PHI   = 0.65\n+VMAX  = 970E3\n+RS    = 80\n+RD    = 80\n+XJ    = 0.63E-6\n+LD    = 0.23E-6\n+DELTA = 2.24\n+THETA = 0.108\n+ETA   = 0.322\n+KAPPA = 0.0\n+WD    = 0.0 )
TEXT 1016 -152 Left 0 ;VCC/2
TEXT 600 -152 Left 0 ;Buffered VCOin
TEXT 528 272 Left 0 ;x_delay
TEXT 528 424 Left 0 ;x_delay
TEXT 160 1048 Left 0 ;x_delay
TEXT 272 1048 Left 0 ;x_delay
TEXT 328 608 Left 0 ;"x_delay" means this gate required a different delay\nto solve a self oscillation problem caused by the feedback.