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noname_lah86
First of all.. i don't know whether this is a correct section to post my question. Seems that none of the section suit my question, so i will ask here first.
Recently i given a question that asked to design a variable T-attenuator. Question as below:
The aim of the project is to design and construct a variable T-attenuator, 0 to 47 dB, step 1 dB, image impedance 50 ohms, and able to operate up to 10 MHz (or higher) with accuracy. The configuration may be as follows:
So after understand the question, I start to design the circuit and until here :
Now the problem comes. How do i design the switch such that it can be set to the dB value i want ? For example when i need 23dB what i do is set the circuit so that it can become 23dB by adding 16+4+2+1. Can it be design to function such a way ?
I need someone to clarify for me. I might be very wrong from the beginning due to wrong concept.
Thx
Recently i given a question that asked to design a variable T-attenuator. Question as below:
The aim of the project is to design and construct a variable T-attenuator, 0 to 47 dB, step 1 dB, image impedance 50 ohms, and able to operate up to 10 MHz (or higher) with accuracy. The configuration may be as follows:
So after understand the question, I start to design the circuit and until here :
Now the problem comes. How do i design the switch such that it can be set to the dB value i want ? For example when i need 23dB what i do is set the circuit so that it can become 23dB by adding 16+4+2+1. Can it be design to function such a way ?
I need someone to clarify for me. I might be very wrong from the beginning due to wrong concept.
Thx
