WRPLL simulation
Frequency and time domain simulation for WRPLL
Installation
Poetry:
poetry install
poetry run jupyter lab
Poetry shell:
poetry install
poetry shell
Nix:
nix develop
Quick start
- The simulation file is located at
src - RAM usage and execution time estimate for time domain simulation
- 500,000,000 time steps: 8GiB RAM and 55 seconds
- Frequency domain doc is also available
WRPLL formulas
-
Assume the difference between
f_{main}, f_{gtx}is very small-
Let
f_{in} = f_{main} = f_{gtx} -
f_{helper} = f_{in} * \dfrac{N-1}{N} -
f_{beat} = f_{in} - f_{helper} = \dfrac{f_{in}}{N}
-
-
Main and helper Si549 DCXO ADPLL setting
ADPLL = \dfrac{\Delta f_{outppm}}{0.0001164}