User Guide

Chapter 13 Analyzing waveforms
360
V[db](INOISE) total equivalent noise
at input source
NTOT(ONOISE) sum of all noise
contributors in the
circuit
N< noise type >(< device name >) contribution from
noise type of device
name to the total
output noise*
* See
Table 11 on page 13-363
for a complete list of noise types by
device type. For information about noise output variable equations, the units
used to represent noise quantities in trace expressions, and a noise analysis
example, see
Analyzing Noise in the Probe window on
page 9-245
.
Table 7
Examples of output variable formats
A basic form An alias equivalent Meaning
V(NET3,NET2) (same) voltage between analog nets
labeled NET3 and NET2
V(C1:1) V1(C1) voltage at pin1 of capacitor C1
VP(Q2:B) VBP(Q2) phase of voltage at base of
bipolar transistor Q2
V(T32:A) VA(T32) voltage at port A of transmission
line T32
I(M1:D) ID(M1) current through drain of
MOSFET device M1
VIN (same) voltage source named VIN
FREQUENCY (same) AC analysis sweep variable
NFID(M1) (same) flicker noise from MOSFET M1
Table 6
Output variable formats (continued)
Format Meaning
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