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Showing posts from June, 2024

Filter Designer

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Filter Designer Filter Designer tool can be used for designing Active Lowpass, Active Highpass and Active Bandpass Filters. Calculate the values of capacitors, resistors, Q values and frequencies of active filter. Note: Filter Designer Tool works best on Computers, we are currently optimizing this tool to work on smartphones. -------------------------------------------------------- Active Lowpass Calculator: 1. 2 Pole Active Lowpass with Unity Gain 2. 2 Pole Active Lowpass with Gain 3. 3 Pole Active Lowpass Filter Active Highpass Calculator: 1. 2 Pole Active Highpass with Unity Gain 2. 2 Pole Active Highpass with Gain 3. 3 Pole Active Highpass Filter Active Bandpass Calculator: 1. 2 Pole Active BandPass Filter 2. 4 Pole Active BandPass Filter 3. 6 Pole Active BandPass Filter Notch Filter Calculator: 1. 2 Op-Amp Notch Filter Calculator Sallen Key Filter Calculator: 1. Sallen Key Lowpass Butterworth Filter Calculator
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VLSI: 1-4 DEMUX (Demultiplexer) Dataflow Modelling with Testbench

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Verilog Code for 1-4 DEMUX Dataflow Modelling module demux_1_to_4(     input d,     input s0,     input s1,     output y0,     output y1,     output y2,     output y3     ); assign s1n = ~ s1; assign s0n = ~ s0; assign y0 = d& s0n & s1n; assign y1 = d & s0 & s1n; assign y2 = d & s0n & s1; assign y3 = d & s0 & s1; endmodule //Testbench code for 1-4 DEMUX Dataflow Modelling initial begin                              // Initialize Inputs ...
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VLSI: BCD to Excess 3 and Excess 3 to BCD Dataflow Modelling

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module bcd_ex3_Dataflow(     input a,     input b,     input c,     input d,     output w,     output x,     output y,     output z     ); assign w = (a | (b & c) | (b & d)); assign x = (((~b) & c) | ((~b) & d) | (b & (~c) & (~d))); assign y = ((c & d) | ((~c) & (~d))); assign z = ~d; endmodule Excess 3 to BCD: module ex3_to_bcd(     input w,     input x,     input y,     input z,     output a,     output b,     output c,     output d     ); assign a = ((w & x) | (w & y & z)); assign b = (((~x) & (~y)) | ((~x) & (~z)) | (x & y & z)); assign c = (((~y) & z) | (y & (~z))); assign d = ~z; endmodule
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VLSI: 4-1 MUX Dataflow Modelling with Testbench

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Verilog Code for 4-1 MUX Dataflow Modelling module m41(out, i0, i1, i2, i3, s0, s1); output out; input i0, i1, i2, i3, s0, s1; assign y0 = (i0 & (~s0) & (~s1)); assign y1 = (i1 & (~s0) & s1); assign y2 = (i2 & s0 & (~s1)); assign y3 = (i3 & s0 & s1); assign out = (y0 | y1 | y2 | y3); endmodule //Testbench code for 4-1 MUX Dataflow Modelling initial begin                              // Initialize Inputs                              a = 1;b = 0;c = 0;d = 0;s0 = 0;s1 = 0;        ...
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1 to 4 DEMUX (Demultiplexer) Verilog CodeStructural/Gate Level Modelling with Testbench

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Verilog Code for 1 to 4 DEMUX Structural/Gate Level Modelling 1-4 DEMUX module   demux_1_to_4(       input   d,       input   s0,       input   s1,       output   y0,       output   y1,       output   y2,       output   y3     ); not(s1n,s1),(s0n,s0); and(y0,d,s0n,s1n),(y1,d,s0,s1n),(y2,d,s0n,s1),(y3,d,s0,s1); endmodule //Testbench code for 1 to 4 DEMUX Structural/Gate Level Modelling initial  begin // Initialize Inputs           d = 1;           s0 = 0;           s1 = 0; // Wait 100 ns for global reset to finish        #100; // Add stimulus here      #100;d = 1;s0 = 1;s1 = 0;      #100;d = 1;s0 = ...
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Full Subtractor Verilog Code in Structural/Gate Level Modelling with Testbench

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Verilog Code for Full Subtractor Structural/Gate Level Modelling module  full_sub(borrow,diff,a,b,c); output  borrow,diff; input  a,b,c; wire w1,w4,w5,w6; xor (diff,a,b,c); not n1(w1,a); and a1(w4,w1,b); and a2(w5,w1,c); and a3(w6,b,c); or o1(borrow,w4,w5,w6); endmodule //Testbench code for Full Subtractor Structural/Gate Level Modelling initial  begin // Initialize Inputs a = 0; b = 0; c = 0; // Wait 100 ns for global reset to finish #100; // Add stimulus here #100; a = 0;b = 0;c = 1; #100; a = 0;b = 1;c = 0; #100; a = 0;b = 1;c = 1; #100; a = 1;b = 0;c = 0; #100; a = 1;b = 0;c = 1; #100; a = 1;b = 1;c = 0; #100; a = 1;b = 1;c = 1; end Output: RTL Schematic: Full Subtractor Verilog Other Verilog Programs: Go to Index of  Verilog Programming
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