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hi, i want the exact envelope of the 40khz signal . i am using low pass filter but i am not getting the signal clearly. suggest me a solution. you can see the attachment.
thanks
yes.. i am using single sensor to TX and RX, but i have to switch my circuit such a way that, Tx should ON and RX should OFF, and vice versa. for this switching action i am using cd4053b, but its not working, thats why is any pull up resistor is required to connect between supply and terminal...
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The answer depends on the requirements to the filter:
filter order (damping requirements), bandwidth (corner frequency), gain yes/no, tuning capabilities yes/no, .....
Please, be more specific.
i want the envelope of the 40khz signal which is transmitted from tx. before transmitting, i have...
while designing the filter(low pass filter) , which one is better means active filter(using opamps) or passive filter (only r and c ). which filter is better and accurate for filtering with out noise...
what is the basic equations of tunned amplifier to amplify the signal , how should we have to select the inductor , capacitot and resistor values, can any help to understand this
hi, i am tring to develope a security camera . can it possible to transmit the video signal and recive the signal at 20feet distance.. which tx and rx circuit i want to deveolpe..
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