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Diffstat (limited to 'Analog_Integrated_Circuits_by_R.S._Tomar/Chapter8.ipynb')
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diff --git a/Analog_Integrated_Circuits_by_R.S._Tomar/Chapter8.ipynb b/Analog_Integrated_Circuits_by_R.S._Tomar/Chapter8.ipynb new file mode 100755 index 00000000..daf49de6 --- /dev/null +++ b/Analog_Integrated_Circuits_by_R.S._Tomar/Chapter8.ipynb @@ -0,0 +1,152 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:f8edf8ce3087d3427d18e8cd2380d8c52cf11f5604fcdfa69ecbcc1dd7de5bc3" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter8 - Frequency synthesizers and PLL" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex 8.1 - page : 255" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sqrt, pi\n", + "VCC=6 #V\n", + "VEE=6 #V\n", + "RT=4 #kohm\n", + "CT=330 #pF\n", + "C=240 #pF\n", + "fo=0.3/(RT*1000*CT*10**-12)/1000 #kHz\n", + "print \"Free running frequency is %0.f kHz \" %fo\n", + "Vplus=(VCC-(-VEE))/2 #V\n", + "deltafL=8*fo/Vplus #kHz\n", + "print \"Lock Range(+ve & -ve) is %0.f kHz \" %deltafL \n", + "#For LM 565\n", + "R=3.6 #kohm\n", + "deltafC=sqrt(deltafL*1000/(2*pi*R*1000*C*10**-12))/1000 #kHz\n", + "print \"Capture Range(+ve & -ve) is %0.f kHz \" %deltafC\n", + "deltafP=2*deltafC/2 #kHz\n", + "print \"Pull-in Range is %0.f kHz \" %deltafP " + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Free running frequency is 227 kHz \n", + "Lock Range(+ve & -ve) is 303 kHz \n", + "Capture Range(+ve & -ve) is 236 kHz \n", + "Pull-in Range is 236 kHz \n" + ] + } + ], + "prompt_number": 4 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex 8.2 - page : 256" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sqrt, pi, floor\n", + "fo=450 #kHz\n", + "deltafL=240 #kHz(+ve & -ve)\n", + "deltafC=40 #kHz(+ve & -ve)\n", + "Vplus=8*fo/deltafL #V\n", + "#Vplus=(VCC-(-VEE))/2 but |VCC|=|-VEE|\n", + "VCC=Vplus #V\n", + "VEE=Vplus #V\n", + "print \"For the design |VCC|=|-VEE| is %d Volt\" %VCC\n", + "RT=4.7 #kohm(Assumed for design)\n", + "R=3.6 #kohm\n", + "CT=0.3/(RT*1000*fo*1000)*10**12 #pF\n", + "C=1/((deltafC*10**3)**2*(2*pi*R*10**3)/(deltafL*1000))*10**9 #nF\n", + "print \"Value of RT = %0.2f kohm \" %RT\n", + "print \"Value of CT = %0.f pF \" %CT\n", + "print \"Value of C = %0.f nF \" % floor(C)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "For the design |VCC|=|-VEE| is 15 Volt\n", + "Value of RT = 4.70 kohm \n", + "Value of CT = 142 pF \n", + "Value of C = 6 nF \n" + ] + } + ], + "prompt_number": 10 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex 8.3 - page : 264" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import log\n", + "fmax=160 #kHz\n", + "fr=4 #Hz(Resolution)\n", + "M=2.4 #unitless\n", + "fclk=M*fmax #kHz\n", + "print \"Clock frequency is %0.2f kHz \" %fclk\n", + "N=log(fclk*1000/fr)/log(2) #no. of bits\n", + "print \"No. of bits = %0.f \" % round(N) " + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Clock frequency is 384.00 kHz \n", + "No. of bits = 17 \n" + ] + } + ], + "prompt_number": 12 + } + ], + "metadata": {} + } + ] +}
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