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authorRahul Paknikar2021-01-08 12:47:23 +0530
committerGitHub2021-01-08 12:47:23 +0530
commite6f48f5b1bf22a1d048b44ed4416b4315a461306 (patch)
treefd357549a236cdc652f0b6d2919beee0cee7faa5 /Windows/spice/examples/xspice/pll/README
parentac223c4a69c701ad0a247401acdc48b8b6b6dba6 (diff)
parent6b512cbf954273b0f21d3800d10a7ad42a759425 (diff)
downloadeSim-i2.1.tar.gz
eSim-i2.1.tar.bz2
eSim-i2.1.zip
Merge pull request #161 from rahulp13/installersi2.1
fixed key issue for ubuntu 20+; updated installers for windows os
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-This directory contains a mixed mode pll, combining
-ngspice and XSPICE circuit blocks.
-The pll consists of the following blocks:
-
-** voltage controlled oscillator:
-vco_sub.cir
- 7 stage ring oscillator with gain cells, CMOS devices
-or
-vco_sub_new.cir
- vco made from code model d_osc, cntl_array/freq_array data
- are gained by running test-vco.cir with vco_sub.cir
-
-** digital divider and frequency reference:
-pll-xspice.cir
-
-** phase frequency detector:
-f-p-det-d-sub.cir
-
-** loop filter:
-loop-filter.cir
- switched current sources as charge pump, 2nd order
- passive RC filter
-or
-loop-filter-2.cir
- transistors as switches for charge pump, 2nd or 3rd
- order passive RC filters
-
-** main simulation control:
-pll-xspice.cir
-
-Two test files are included:
-test-vco.cir simulates vco frequency versus control voltage
-test-f-p-det.cir simulates the phase frequency detector and the loop filter.
-
-The main building blocks are organised as subcircuits.
-
-main simulation control with three reference frequencies:
-pll-xspice-fstep.cir
- simulates two steps of the reference in one simulation run