Tank circuit design question

Thread Starter

m7md3mad99

Joined May 24, 2020
3
I want help with a question about tank circuits
Project:
The tank circuit is used as the load of intermediate amplifier to select 10 kHz bandwidth centered at 455 kHz resonance frequency. Design a tank circuit to achieve the above requirements if the quality factor is 100 and C = 0.01 μF.
 

Papabravo

Joined Feb 24, 2006
13,743
The numbers you have given are inconsistent. 455 kHz center with 10 kHz Bandwidth requires a Q of 45.5, not 100. With a Q of 100 the bandwidth will be much narrower.
 

sparky 1

Joined Nov 3, 2018
185
The norcal nc2030 might be one option the wider BW crystal ladder 5 element. this radio looks like fun.
In this video the builder of QCX is demonstrating the atmega performing adjustment of phase ( FF 8 minets )
 

Janis59

Joined Aug 21, 2017
1,182
RE:""With a Q of 100 the bandwidth will be much narrower."" - the perfect solution is "camel-bone" - two binded tanks
 

Papabravo

Joined Feb 24, 2006
13,743
Ok , can you design it with the right numbers ?
OK. What are the right numbers. If you specify the bandwidth, then you have to take the Q you get. If you specify the Q, then you have to take the bandwidth you get. Which alternative would you like? What about less than ideal components, do we need to allow for that? What are you going to do with this circuit?
 
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