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venky228
Visitor
Visitor
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Registered: ‎08-24-2011

help regarding ADC_DAC

 

Hello to every one,

                                   im very new to vhdl coading and i need to do project on altium nano board 3000, which uses spartan 3an. it contains ADC084SO21 and DAC084S085. Now im having the code for ADC_DAC Interfacing, ie if i give analog signal to ADC im getting the same signal through DAC. Now for the same input signal i want the amplitude of output signal through DAC as twice the amplitude of input(ie if i give 1v  signal in adc , i have to get 2v through dac ). Now i want to know what should i do in the vhdl coading inorder to increase the output for same input.

 

 

                                             thanks in advance

 

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bassman59
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Registered: ‎02-25-2008


@venky228 wrote:

 

Hello to every one,

                                   im very new to vhdl coading (sic) and i need to do project on altium nano board 3000, which uses spartan 3an. it contains ADC084SO21 and DAC084S085. Now im having the code for ADC_DAC Interfacing, ie if i give analog signal to ADC im getting the same signal through DAC. Now for the same input signal i want the amplitude of output signal through DAC as twice the amplitude of input(ie if i give 1v  signal in adc , i have to get 2v through dac ). Now i want to know what should i do in the vhdl coading (sic) inorder to increase the output for same input.

 

 

                                             thanks in advance

 


y <= x * 2;

 

would be the place to start.

 

The implementation details are left as an exercise for the reader.

----------------------------Yes, I do this for a living.
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