Voltage controlled oscillator  
Model Name   VCO(ANALOG)
VCO(DIGITAL)
 
Symbol   No Symbol  
Generics  
Name   Type   Default   Unit   Min   Description  
DC   real   0.0   V     dc offset of oscillator  
AMPL_DBM   real   -100.0   dBm     amplitude of sine wave  
FREQ_0   real   1.0e03   Hz   >0.0   free running frequency  
PHASE_0   real   0.0   rad     constant phase offset  
K_FREQ   real   1.0e06   Hz/V     sensitivity of voltage input  
RIN   real   50.0   Ohm   >0.0   input resistance  
ROUT   real   50.0   Ohm   >0.0   output resistance  
 
Ports  
Interface   Name   Type/Nature   Description  
terminal   P_CTRL   ELECTRICAL   control pin  
terminal   P_OUT   ELECTRICAL   output pin  
terminal   VDD   ELECTRICAL   supply voltage  
terminal   GND   ELECTRICAL   reference pin  
 
Description   The test-bench describes a voltage controlled oscillator
which includes an analog and a digital architecture.
The analog realization uses a sine wave with tunable frequency
while the digital realization uses a process that produces
a square wave.
 
Dependencies  
Logical Library   Design Unit/Design Entity  
IEEE_proposed   ELECTRICAL_SYSTEMS  
IEEE   MATH_REAL  
 
Source   See source code  
Example   See test-bench