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LTspice subckt model for AD734

I picked up the macromodel from AD(TI) for this IC. I=20 am using the manual to try to figure out how to=20 incorporate the model in a circuit idea, but i hit up=20 against errors. This one has me baffled though. =20

The error i am getting is:

"Port(pin) count mismatch between the definition of 'ad734.cir' and = instance xu1. The instance has more connections than the definition."

I don't understand why i am getting this error. I would like to better understand how to make this work.

Here is example test circuit:

+++++ Version 4 SHEET 1 2476 680 WIRE 800 -1120 688 -1120 WIRE 688 -1088 688 -1120 WIRE 800 -1088 800 -1120 WIRE 208 -1008 112 -1008 WIRE 0 -992 0 -1040 WIRE 208 -992 208 -1008 WIRE 640 -896 448 -896 WIRE 800 -896 800 -1008 WIRE 800 -896 640 -896 WIRE 208 -864 208 -912 WIRE 320 -864 320 -1040 WIRE 320 -864 208 -864 WIRE 0 -848 0 -912 WIRE 112 -848 112 -1008 WIRE 112 -848 0 -848 WIRE 0 -816 0 -848 WIRE 448 -608 448 -896 WIRE 496 -608 448 -608 WIRE 704 -608 704 -656 WIRE 704 -608 640 -608 WIRE 496 -576 464 -576 WIRE 656 -576 640 -576 WIRE 464 -544 464 -576 WIRE 464 -544 432 -544 WIRE 496 -544 464 -544 WIRE 672 -544 640 -544 WIRE 672 -528 672 -544 WIRE 816 -528 672 -528 WIRE 432 -512 432 -544 WIRE 464 -512 464 -544 WIRE 496 -512 464 -512 WIRE 672 -512 672 -528 WIRE 672 -512 640 -512 WIRE 464 -480 464 -512 WIRE 496 -480 464 -480 WIRE 768 -480 768 -608 WIRE 768 -480 640 -480 WIRE 192 -448 192 -480 WIRE 192 -448 48 -448 WIRE 496 -448 192 -448 WIRE 656 -448 640 -448 WIRE 464 -416 464 -480 WIRE 496 -416 464 -416 WIRE 672 -416 640 -416 WIRE 672 -304 672 -416 WIRE 704 -304 704 -320 WIRE 704 -304 672 -304 WIRE 768 -304 768 -480 WIRE 768 -256 768 -304 WIRE 48 208 48 -448 WIRE 48 368 48 288 =46LAG 48 368 0 =46LAG 688 -1088 0 =46LAG 0 -1040 VP =46LAG 320 -1040 VN =46LAG 0 -816 0 =46LAG 704 -656 VP =46LAG 704 -320 VN =46LAG 768 -256 0 =46LAG 432 -512 0 =46LAG 192 -480 Ain =46LAG 640 -896 C0 SYMBOL voltage 48 192 R0 WINDOW 3 46 82 Left 0 WINDOW 123 46 50 Left 0 WINDOW 39 47 110 Left 0 SYMATTR Value SINE(0 1 220 0 0 0) SYMATTR Value2 AC 1 0 SYMATTR SpiceLine Rser=3D1 Cpar=3D100p SYMATTR InstName V1 SYMBOL voltage 800 -1104 R0 WINDOW 3 43 69 Left 0 WINDOW 123 43 41 Left 0 WINDOW 39 44 95 Left 0 SYMATTR Value SINE(0 1 10.7M 0 0 0) SYMATTR Value2 AC 1 0 SYMATTR SpiceLine Rser=3D5 Cpar=3D1p SYMATTR InstName V5 SYMBOL voltage 0 -1008 R0 SYMATTR InstName V7 SYMBOL voltage 208 -1008 R0 SYMATTR InstName V8 SYMBOL AD734 576 -560 R0 SYMATTR InstName U1 SYMATTR Prefix X1 X2 U0 U1 U2 Y1 Y2 VN ER Z2 Z1 W DD VP SYMATTR SpiceModel ad734.cir SYMBOL cap 704 -592 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C2 SYMATTR Value 100n SYMBOL cap 704 -288 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C3 SYMATTR Value 100n TEXT 48 -1088 Left 0 !.subckt ad734.cir TEXT -32 392 Left 0 !.tran 10m

=3D=3D=3D=3D=3D

Here is the downloaded macromodel:

+++++
  • AD734 SPICE Macro-model 4/92, Rev. B
  • AAG / PMI
*
  • Revision History:
  • Removed input signal current compensation: GX1,GY1,GZ1
  • Added Isy vs. Vsy
*
  • Copyright 1992 by Analog Devices, Inc.
*
  • Refer to "README.DOC" file for License Statement. Use of this model
  • indicates your acceptance with the terms and provisions in the License = Statement.
*
  • Node assignments
  • X1
  • | X2
  • | | UO
  • | | | U1
  • | | | | U2
  • | | | | | Y1
  • | | | | | | Y2
  • | | | | | | | VN
  • | | | | | | | | ER
  • | | | | | | | | | Z2
  • | | | | | | | | | | Z1
  • | | | | | | | | | | | W
  • | | | | | | | | | | | | DD
  • | | | | | | | | | | | | | VP
  • | | | | | | | | | | | | | | .SUBCKT AD734 10 11 49 50 51 20 21 200 58 31 30 77 54 100
  • EREF 300 0 POLY(2) 100 0 200 0 (0,0.5,0.5)
*
  • X INPUT STAGE & POLE AT 40 MHz
  • CINX 10 11 2E-12 IBX1 10 0 DC 50E-9 IBX2 11 0 DC 50E-9 EOSX 12 10 POLY(1) 18 300 15E-3 1 RX1 12 13 25E3 RX2 13 11 25E3
  • GX1 300 14 12 11 1E-6 RX3 14 300 9.995E5 CX1 14 300 3.9809E-15 VX1 100 15 DC 3.1875 DX1 14 15 DX VX2 16 200 DC 3.1875 DX2 16 14 DX
*
  • X INPUT STAGE COMMON-MODE REJECTION AND ZERO 40 kHz
  • ECMX 17 300 13 300 56.234 RCMX1 17 18 1E6 CCMX 17 18 3.9789E-12 RCMX2 18 300 1
*
  • Y INPUT STAGE & POLE AT 40 MHz
  • CINY 20 21 2E-12 IBY1 20 0 DC 50E-9 IBY2 21 0 DC 50E-9 EOSY 22 20 POLY(1) 28 300 10E-3 1 RY1 22 23 25E3 RY2 23 21 25E3
  • GY1 300 24 22 21 1E-6 RY3 24 300 9.995E5 CY1 24 300 3.9809E-15 VY1 100 25 DC 3.1875 DY1 24 25 DX VY2 26 200 DC 3.1875 DY2 26 24 DX
*
  • Y INPUT STAGE COMMON-MODE REJECTION AND ZERO 80 kHz
  • ECMY 27 300 23 300 56.234 RCMY1 27 28 1E6 CCMY 27 28 1.9895E-12 RCMY2 28 300 1
*
  • Z INPUT STAGE & POLE AT 40 MHz
  • CINZ 30 31 2E-12 IBZ1 30 0 DC 50E-9 IBZ2 31 0 DC 50E-9 EOSZ 32 30 POLY(1) 38 300 20E-3 1 RZ1 32 33 25E3 RZ2 33 31 25E3
  • GZ1 300 34 32 31 1E-6 RZ3 34 300 1E6 CZ1 34 300 3.9789E-15 VZ1 100 35 DC 3.1875 DZ1 34 35 DX VZ2 36 200 DC 3.1875 DZ2 36 34 DX
*
  • Z INPUT STAGE COMMON-MODE REJECTION AND ZERO 40 kHz
  • ECMZ 37 300 33 300 56.234 RCMZ1 37 38 1E6 CCMZ 37 38 3.9789E-12 RCMZ2 38 300 1
*
  • DENOMINATOR CONTROL & INTERNAL REFERENCE
  • QU1 100 49 50 QNU RU1 50 51 28E3
  • VU 100 52 QU2 52 0 53 QNU RU2 53 54 0.001 IU 53 200 DC 10E-6 =46U1 300 55 VU 1.01 RU3 55 300 1E6
  • VR1 57 200 DC 8 QR 59 57 58 QPU RR 57 58 1E5 VR2 59 200 =46U4 300 56 VR2 1 RU4 56 300 28E3
  • EU 60 300 POLY(3) 50 51 55 300 56 300 (0,1.0101,1,1.0101) RU5 60 300 1E6
*
  • 250 MHz MULTIPLIER CORE
  • EXY 46 300 POLY(2) 14 300 24 300 (0,0,0,0,1) RXY 46 300 1E6 GXY 300 47 46 300 1 GU 47 300 POLY(2) 60 300 47 300 (0,0,0,0,1) RU 47 300 1E12 CU 47 300 6.65E-9 EW 48 300 POLY(2) 47 300 34 300 (0,1,-1) RW 48 300 1E6
*
  • OUTPUT AMP BUFFER
  • GW 64 300 48 300 1 QW1 100 0 61 QNW QW2 200 0 62 QPW QW3 63 62 64 QNW QW4 65 61 64 QPW RW1 100 63 1 RW2 65 200 1 IW1 100 62 DC 100E-6 IW2 61 200 DC 100E-6 VW1 100 66 DC 10 DW1 66 63 DX VW2 67 200 DC 10 DW2 65 67 DX
*
  • OUTPUT AMP GAIN STAGE
  • GW1 300 68 100 63 1 GW2 68 300 65 200 1 RW3 68 300 1.38E3 CW1 68 300 19E-9 VW3 100 69 DC 3.8 DW3 68 69 DX VW4 70 200 DC 3.8 DW4 70 68 DX
*
  • TRANSIENT SUPPLY CURRENT COMPENSATION
  • DCC1 80 100 DX GCC 0 80 48 300 1 DCC2 0 80 DX DEE1 81 0 DX GEE 81 0 300 48 1 DEE2 200 81 DX
*
  • POLE AT 17.5 MHz
  • GW3 300 71 68 300 1E-6 RW4 71 300 1E6 CW2 71 300 9.0946E-15
  • IDC 100 200 DC 4.0125E-3 RDC1 100 78 3.2E3 RDC2 78 200 3.2E3 DO1 100 72 DX GO1 72 200 76 71 25E-3 DO2 200 72 DY DO3 100 73 DX GO2 73 200 71 76 25E-3 DO4 200 73 DY VSC1 74 76 DC 0.4 DSC1 71 74 DX VSC2 76 75 DC 0.4 DSC2 75 71 DX GO3 76 100 100 71 25E-3 GO4 200 76 71 200 25E-3 RO1 100 76 40 RO2 76 200 40 LO 76 77 100E-9
*
  • MODELS USED
  • .MODEL QNU NPN (BF=3D100 IS=3D1E-16) .MODEL QPU PNP (BF=3D100 IS=3D1E-16) .MODEL QNW NPN (BF=3D1E9 IS=3D1E-15) .MODEL QPW PNP (BF=3D1E9 IS=3D1E-15) .MODEL DX D(IS=3D1E-15) .MODEL DY D(IS=3D1E-15 BV=3D50) .ENDS AD734

=3D=3D=3D=3D=3D

Here is the symbol i created:

+++++ Version 4 SymbolType CELL RECTANGLE Normal 64 187 -80 -85 TEXT -58 -106 Left 0 AD734 SYMATTR ModelFile AD734.cir SYMATTR Prefix U SYMATTR SpiceModel AD734 PIN -80 -48 LEFT 8 PINATTR PinName X1 PINATTR SpiceOrder 1 PIN -80 -16 LEFT 8 PINATTR PinName X2 PINATTR SpiceOrder 2 PIN -80 16 LEFT 8 PINATTR PinName U0 PINATTR SpiceOrder 3 PIN -80 48 LEFT 8 PINATTR PinName U1 PINATTR SpiceOrder 4 PIN -80 80 LEFT 8 PINATTR PinName U2 PINATTR SpiceOrder 5 PIN -80 112 LEFT 8 PINATTR PinName Y1 PINATTR SpiceOrder 6 PIN -80 144 LEFT 8 PINATTR PinName Y2 PINATTR SpiceOrder 7 PIN 64 144 RIGHT 8 PINATTR PinName VN PINATTR SpiceOrder 8 PIN 64 112 RIGHT 8 PINATTR PinName ER PINATTR SpiceOrder 9 PIN 64 80 RIGHT 8 PINATTR PinName Z2 PINATTR SpiceOrder 10 PIN 64 48 RIGHT 8 PINATTR PinName Z1 PINATTR SpiceOrder 11 PIN 64 16 RIGHT 8 PINATTR PinName W PINATTR SpiceOrder 12 PIN 64 -16 RIGHT 8 PINATTR PinName DD PINATTR SpiceOrder 13 PIN 64 -48 RIGHT 8 PINATTR PinName VP PINATTR SpiceOrder 14

=3D=3D=3D=3D=3D

Reply to
JosephKK
Loading thread data ...

Hello Joseph,

  1. The Prefix in the symbol has to be always X for subcircuits. Don't forget to re-instantiate the symbol in the schematic after this change.

  1. Delete this SPICE-directive ".subckt..." in your schematic.

  2. The value of the voltage sources should be 15.

  1. The multiplier M or m means milli. Maybe you want MEG or meg.

  2. After you have fixed this, you may encounter problems with convergence. You have to add the following SPICE-directives to get it working.

.options tseed=1n .options method=gear .options cshunt=7e-15

Unfortunately the ladder has already some impact on the bandwidth of the AD737 at 10MHz.

If you just need a multiplier for some kind of higher level simulation, then better use the behavioral sources Bv or Bi. A multiplier: V=V(nodea)*V(nodeb)

You should consider to become a member of the LTspice group. An example with the AD734 has been already there in the group's Files-section. Files > Lib > AD734

formatting link
To become a member is very easy if you create an email-account in Yahoo before.

Best regards, Helmut

Reply to
Helmut Sennewald

reinstantiating was easy enough

ok.

=46ixed

Changed

convergence.

After i get operating point to go. Floating nodes.

Mostly an output amplifier slew rate limitation. I can dodge that well = enough.

I was trying to get a bit further away from that, but that is inside=20 the macromodel anyway. I intended to create a buildable circuit.

Sorry, they pissed me off. I couldn't read, search, or do anything=20 before signing up; i understand signing up to post though. =20 I have problems with managing all the damn passwords i use as is. Not the way to attract friends.

Reply to
JosephKK

Same here...

--
"For a successful technology, reality must take precedence 
over public relations, for nature cannot be fooled."
                                       (Richard Feynman)
Reply to
Fred Abse

Poor babies :-)

I subscribed to receive the digests, and often post answers from there, without having to use the website. ...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |
             
      The only thing bipartisan in this country is hypocrisy
Reply to
Jim Thompson

Understandable, i avoid blogs like the pox they are.

Reply to
JosephKK

Dear Folks,

I have a similar problem using the PLL-IC CD4046 model.

The exact error message is: " Port(pin) count mismatch between the definition of subcircuit "cd4046" and instance: "xu1" The instance has fewer connection terminals than the definition. "

The Prefix in the symbol is "X" as should be, and i think i used the right number of pins. Deleting the ".subckt" statement doesn't seem like a solution to me, as this is what links to the symbol as far as i understood (am i wrong?).

But see yourself:

######### CD4046 definition ############

  • Taken from: mix_misc.lib
  • Library of Miscellaneous Mixed Analog Models
  • Copyright OrCAD, Inc. 1998 All Rights Reserved.

.subckt CD4046 sigin phcmpii phcmpi phpls compin vcoin

  • r1 r2 ce1 ce2 vcoout demout inhibit zener vdd vss
  • OPTIONAL: DPWR=$G_DPWR DGND=$G_DGND
  • PARAMS: MNTYMXDLY=0 IO_LEVEL=0
  • Rin=1Meg S1=1 S2=0.5 M1=0.5 M2=1.0 Vx=10
  • Kb=1 Vfree=0.0 Kc=-0.1 Vt=1.2 Vxqr=10

  • Rin = VCO Input Resistace

  • S1 = Voltage Limiter linear slope
  • S2 = Voltage Limiter non-linear slope
  • Vx = Input threshold voltage (between S1 and S2)
  • Kb = Arbitrary constant to adjust the value of the conversion gain (transimpedance gain)
  • Vfree= Frequency dependent constant in Emult
  • Kc = Negative inverse amplitude of the square wave
  • Vt = Trigger voltage of Schmitt trigger (not used)
  • Vxqr = Amplitude of square wave (not used)
  • M1 = Current mirror multiplier to adjust oscillator frequency
  • M2 = Current mirror multiplier to adjust oscillator frequency

  • Preliminary model still under development based on Natinal Semiconductor CD4046BM

  • RAPerez 9/98

  • Phase detector section

U1 INVA(4) DPWR DGND sigin compin isigin icompin

  • isigin icompin clk1 clk2
  • INVA_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL INVA_TIMING UGATE

U2 XOR DPWR DGND isigin icompin xorout

  • XOR_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL XOR_TIMING UGATE

***tplhty=20n tphlty=20n

U3 NAND(2) DPWR DGND q1 q2 pclr

  • NAND_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL NAND_TIMING UGATE (tplhty=1n tphlty=1n)

U4 DFF(1) DPWR DGND $D_HI clr clk1 $D_HI q1 qb1

  • DFF1_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL DFF1_TIMING UEFF tppcqlhty=4n tppcqhlty=4n tpclkqlhty=4n tpclkqhlty=4n

U5 DFF(1) DPWR DGND $D_HI clr clk2 $D_HI q2 qb2

  • DFF2_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL DFF2_TIMING UEFF tppcqlhty=5n tppcqhlty=5n tpclkqlhty=5n tpclkqhlty=5n

U7 BUFA(2) DPWR DGND fq1 fq2 s1 s2

  • BUFA_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL BUFA_TIMING UGATE

ST2 vdd phcmpii s1 0 swt SB2 phcmpii vss s2 0 swt

.model swt VSWITCH (ROFF=2G RON=10m VOFF=0.8 VON=3.0)

U6 AND(2) DPWR DGND pclr reset clr

  • AND_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL AND_TIMING UGATE

Ureset STIM(1,1) DPWR DGND

  • reset
  • IO_HCT
  • +0s 0
  • 2ns 1
  • 1s 1

U8 NOR(2) DPWR DGND fq1 fq2 norout

  • NOR_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL NOR_TIMING UGATE

U9 ANDA(2,2) DPWR DGND q1 od1 q2 od2 fq1 fq2

  • ANDA_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL ANDA_TIMING UGATE

U10 DLYLINE DPWR DGND q1 od1

  • DLY_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}
U11 DLYLINE DPWR DGND q2 od2
  • DLY_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL DLY_TIMING UDLY dlyty=12n

U12 BUFA(3) DPWR DGND norout xorout vcosqr phpls phcmpi vcoout

  • BUFB_TIMING IO_HCT
  • MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}

.MODEL BUFB_TIMING UGATE

  • VCO Section

Rin vcoin vss {Rin} Evlim vlim 0 value={if(v(vcoin,vss)

Reply to
volkerk

Syntax error, the definition/"declaration" must be as (note the dotSUBCKT):

.SUBCKT MODELNAME PINLIST | GUTS | .ENDS

(Note the dotENDS)

The "instantiation" must be as

Xnnn NODELIST MODELNAME

"NODELIST" must be of the same number of connections as "PINLIST", otherwise you get the "count mismatch" error message.

[snip]
[snip] ...Jim Thompson 
--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

               I can see November from my house :-)
Reply to
Jim Thompson

Thanx,

Unluckily the missing dots were not the problem, as they are at the right places in my file - they must have gotten lost somewhere while posting the file contents to this thread.

I looked up in the netlist of my test file, and the "instantiation" is as follows:

"XU1 N003 N004 NC_01 N005 N001 N009 N008 NC_02 N006 N007 N001 NC_03 0 NC_04 N010 0 CD4046

" (number of connections: 16) Are there no not connected nodes (NC_xx) allowed?

For reference: The model's "portlist" is as follows: ".subckt CD4046 sigin phcmpii phcmpi phpls compin vcoin

  • r1 r2 ce1 ce2 vcoout demout inhibit zener vdd vss
  • OPTIONAL: DPWR=$G_DPWR DGND=$G_DGND
  • PARAMS: MNTYMXDLY=0 IO_LEVEL=0
  • Rin=1Meg S1=1 S2=0.5 M1=0.5 M2=1.0 Vx=10
  • Kb=1 Vfree=0.0 Kc=-0.1 Vt=1.2 Vxqr=10 " (number of ports: 16 if i count right???)

And there are 16 pins defined in the Symbol. I also tried to make two more pins in case the "OPTIONAL:" field in the model's "header" also counts as ports (what i think is not the case) - i got the same error message.

Can it be something else? I'm really a bit lost.

--------------------------------------- Posted through

formatting link

Reply to
volkerk

The pin/node count matches. Comment out the "OPTIONAL:" line and see what happens. ...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

               I can see November from my house :-)
Reply to
Jim Thompson

It appears that it is necessary to include the whole Orcad mix_misc library, plus other libraries which mix_misc references.

I don't like libraries that require other libraries. Stinks of programmers' methods. Change one thing and break lots of others.

Also, the Orcad libraries include syntax that LTSpice doesn't understand.

Major rewrite necessary.

--
"For a successful technology, reality must take precedence 
over public relations, for nature cannot be fooled."
                                       (Richard Feynman)
Reply to
Fred Abse

OrCAD (and PSpice, for that matter) can utilize global power and ground nodes as a means to keeping schematics from becoming a jungle of wires.

You _could_ learn to make your own libraries (I do ;-) ...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

               I can see November from my house :-)
Reply to
Jim Thompson

Or simply copy-and-paste for specialty items, like my D2A part that bridges between digital environment parts (e.g. 74HC stuff) to a specific analog environment:

*******************************************************************
  • LOGIC to ANALOG Translator .SUBCKT D2A IN OUT $G_DPWR $G_DGND PARAMS: VH=3.3V VL=0V TRF=10ns X_HB1_UT1A IN INV $G_DPWR $G_DGND 74HC04 PARAMS:
  • IO_LEVEL=0 MNTYMXDLY=0
** E1 N_2 0 VALUE {LIMIT(V(N_1),-1,+1)} R2 N_2 0 10K G2 N_1 0 N_1 N_2 1 R1 N_1 0 10K C1 0 N_1 {1.35375*TRF/160} R3 OUT 0 10K E2 OUT 0 VALUE {(VL-VH)/2*SIN(1.570796*V(N_2, 0))+(VH+VL)/2} G1 0 N_1 VALUE {(V(INV,0)-2.5)/250} RINN INV 0 1G *******************************************************************

...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

               I can see November from my house :-)
Reply to
Jim Thompson

I already do. I don't have any use for a CD4046 model, I was just investigating the OP's problem to see if I could offer anything constructive.

PSpice models usually just work in LTSpice. Some of the Orcad stuff seems a bit byzantine.

--
"For a successful technology, reality must take precedence 
over public relations, for nature cannot be fooled."
                                       (Richard Feynman)
Reply to
Fred Abse

[snip]

"Byzantine"?

Thumbing back thru my LTspice "digests" E-mails I see the very same digital notation. Apparently LTspice lacks the full complement of

74HC... libraries, so you have to do some rolling of your own.

PSpice (OrCAD) has mixed-signal capabilities... digital is primarily behavioral (for speed of simulation) plus regular analog stuff. You have to know what you are doing to mix it together and still retain speed.

Take a look at my D2A (digital-world-to-analog-world) interface. I did that to keep digital screaming along as a digital simulation, then make a single translation to analog. ...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

               I can see November from my house :-)
Reply to
Jim Thompson

I missed your next-to-last paragraph. With enough flattery I could probably be cajoled into writing a CD4046 that's a generic (behavioral) Spice model ;-) ...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

               I can see November from my house :-)
Reply to
Jim Thompson

That's what I'd do. I like behavioral models. However it isn't me that wants one, it's volkerk. I don't know whether his flattery skills are sufficiently honed ;-)

Byzantine: characterized by elaborate scheming and intrigue, esp. for the gaining of political power or favor. (Dictionary.com)

--
"For a successful technology, reality must take precedence 
over public relations, for nature cannot be fooled."
                                       (Richard Feynman)
Reply to
Fred Abse

I'm not a programmer, but my understanding is that the PSpice digital behavioral models are based on "C" code. Charlie? ...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

               I can see November from my house :-)
Reply to
Jim Thompson

"Jim Thompson" wrote in message news: snipped-for-privacy@4ax.com...

Yer an ugly old coot and I don't think you can do it!

How's that for cajoling? :)

tm

PS, I like your sig.

Reply to
tm

Invented by Kernighan and Ritchie, as an elaborate practical joke :-)

--
"For a successful technology, reality must take precedence 
over public relations, for nature cannot be fooled."
                                       (Richard Feynman)
Reply to
Fred Abse

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