Listing 4. nutmeg Interactive Session
# nutmeg diffpair-2.raw
Program: nutmeg, version: 3f4
Date built: Mon Mar 3 22:03:12 PST 1997
Type "help" for more information, "quit" to leave.
Loading raw data file ("diffpair-2.raw") . . . done.
Title: Simple Differential Pair Circuit - Version 2
Name: AC Analysis
Date: Sun Mar 23 12:17:40 1997
Title: Simple Differential Pair Circuit - Version 2
Name: DC transfer characteristic
Date: Sun Mar 23 12:17:40 1997
Title: Simple Differential Pair Circuit - Version 2
Name: Transient Analysis
Date: Sun Mar 23 12:17:40 1997
Title: Simple Differential Pair Circuit - Version 2
Name: Transfer Function
Date: Sun Mar 23 12:17:45 1997
nutmeg 1 -> setplot
Type the name of the desired plot:
new New plot
Current tf1 Simple Differential Pair Circuit - Version 2 (Transfer Function)
tran1 Simple Differential Pair Circuit - Version 2 (Transient Analysis)
dc1 Simple Differential Pair Circuit - Version 2 (DC transfer characteristic)
ac1 Simple Differential Pair Circuit - Version 2 (AC Analysis)
const Constant values (constants)
? dc1
nutmeg 2 -> plot v(out1) v(out2)
nutmeg 3 -> set hcopydevtype=postscript
nutmeg 4 -> The file "/tmp/hc20966" may be printed on a postscript printer.
nutmeg 5 -> hardcopy diffpair-2-dc.ps v(out1) v(out2)
The file "diffpair-2-dc.ps" may be printed on a postscript printer.
nutmeg 6 -> setplot
Type the name of the desired plot:
new New plot
tf1 Simple Differential Pair Circuit - Version 2 (Transfer Function)
tran1 Simple Differential Pair Circuit - Version 2 (Transient Analysis)
Current dc1 Simple Differential Pair Circuit - Version 2 (DC transfer characteristic)
ac1 Simple Differential Pair Circuit - Version 2 (AC Analysis)
const Constant values (constants)
? tf1
nutmeg 8 -> display
Here are the vectors currently active:
Title: Simple Differential Pair Circuit - Version 2
Name: tf1 (Transfer Function)
Date: Sun Mar 23 12:17:45 1997
Transfer_function : voltage, real, 1 long [default scale]
output_impedance_at_V(out2): voltage, real, 1 long
vin#Input_impedance : voltage, real, 1 long
nutmeg 9 -> print Transfer_function
transfer_function = 4.460971e+01
nutmeg 10 -> print all
transfer_function = 4.460971e+01
output_impedance_at_v(out2) = 4.887695e+03
vin#input_impedance = 8.896872e+03
nutmeg 11 -> setplot ac1
nutmeg 12 -> set units=degrees
nutmeg 13 -> hardcopy diffpair-2-vp.ps vp(out2)
The file "diffpair-2-vp.ps" may be printed on a postscript printer.
nutmeg 14 -> set units=radians
nutmeg 15 -> hardcopy diffpair-2-vrad.ps vp(out2)
The file "diffpair-2-vrad.ps" may be printed on a postscript printer.
nutmeg 16 -> hardcopy diffpair-2-vm.ps vm(out2)
The file "diffpair-2-vm.ps" may be printed on a postscript printer.
nutmeg 17 -> setplot tran1
nutmeg 18 -> plot v(input) v(out2) xlimit 0 500ns
nutmeg 19 -> hardcopy diffpair-2-tran.ps v(input) v(out2) xlimit 0 500ns
The file "diffpair-2-tran.ps" may be printed on a postscript printer.
nutmeg 20 -> fourier 5meg v(out2)
Fourier analysis for v(out2):
No. Harmonics: 10, THD: 18.4621 %, Gridsize: 200, Interpolation Degree: 1
Harmonic Frequency Magnitude Phase Norm. Mag Norm. Phase
-------- --------- --------- ----- --------- -----------
0 0 2.53171 0 0 0
1 5e+06 2.7343 148.112 1 0
2 1e+07 0.0564934 161.969 0.020661 13.8568
3 1.5e+07 0.47909 102.783 0.175215 -45.329
4 2e+07 0.0231352 136.951 0.00846111 -11.162
5 2.5e+07 0.138923 74.7722 0.0508076 -73.34
6 3e+07 0.00826939 112.309 0.00302431 -35.803
7 3.5e+07 0.0447823 50.8871 0.016378 -97.225
8 4e+07 0.00261832 95.6283 0.000957584 -52.484
9 4.5e+07 0.0140673 25.5604 0.00514475 -122.55
nutmeg 21 -> quit
nutmeg-3f4 done
