SELECTED RF BLOCKS IN VHDL-AMS
151
0
w
for
0
t
.
Input and output impedances are modeled as ohmic resistances. Typical
values of a matched system are:
50
in
out
R
R
Additional characteristics, that were not modeled here, include
Timing jitter and phase noise (see [Lee01])
Nonlinear tuning characteristic
Second order effects such as temperature and power supply dependency
of the tuning characteristic
Dead time of the control input
Power consumption
Model interface
Figure 7-19. Schematic symbol of VCO
Table 7-17. Model ports
Name Type
Description
P_CTRL ELECTRICAL
Control
pin
P_OUT ELECTRICAL
Output
pin
VDD ELECTRICAL
Supply
voltage
GND ELECTRICAL
Reference
node
Summary :
Model ports Name Type Description P_CTRL ELECTRICAL Control pin P_OUT ELECTRICAL Output pin VDD ELECTRICAL Supply voltage GND ELECTRICAL Reference node
Tags :
electrical,power,pin,control,modeled,supply,output,characteristic,tuning,model,input,figure,typical