Cascade characterizes each block in a system by its gain and optionally
noise figure and third order intercept point. As such, there is
no distinction between various elements such as amplifiers, filters, and
mixers. The gEDA/gaf RF Cascade symbol library contains different
symbols for clarity in the diagram only. The currently available
element symbols are:
Table 1:
Element Types
cascade-amp
Amplifier
cascade-filter
Filter
cascade-mixer
Mixer
cascade-transformer
Transformer
Attributes:
Gain is specified by one of the following:
G=Power gain in dB.
GP=Power gain in dB.
GV=Voltage gain in dB.
NF=Noise Figure in dB. Optional.
IIP3=Input Third Order Intercept Point in dBm. Optional.
RIN=Block input resistance in Ohms. Optional.
ROUT=Block output resistance in Ohms. Optional.
RHO=Third order distortion correlation coefficient. Optional.