SINGLE- FREQUENCY FREQUENCY MODULATION - pspice

The symbol of a source with single –frequency frequency modulation is SFFM, and the general form is :

SFFM (V0 VA FC MOD FS)

The Model Parameters Of an Single- Frequency Frequency Modulation
Name Meaning Units Default
VO Offset Voltage Volts None
VA Amplitude of Voltage Volts None
FC Carrier Frequency Hertz 1/ TSTOP
MOD Modulation Index 0
FS Single Frequency Hertz 1/ TSTOP

VO and VA must be specified by the user and can be either voltage or currents.
TSTOP is the stop time during transient (.TRAN) analysis. The wave form is of the form by
V = VO + VA sin[(2πfct)+M sin(2πfSt)]

Typical statements.
VO =0,
VA=1V,
fc=30MHz,
MOD=5,
fS=5KHz,the model statement is,

SFFM ( 0 1V 30MHZ 5 5KHZ )

With VO =1Mv and VA=2V, the model becomes

SFFM ( 1MV 2V 30MHZ 5 5KHZ