How to generate a digitized sinusoidal input signal for DAC?

[samvelc]

Hi all,

I have designed a DAC. Now I want to test it.
I want to apply a digitized sinusoidal signal as a input.
But I do not know how to generate such kind of input signal.

Could you please advice.
Do you have a such example.

Thanks in advance.

 

[erikl]

Re: Input signal for DAC

Find several methods described!

 

[samvelc]

Re: Input signal for DAC

Find several methods described!

Thanks,
But I need a digitized sinusoidal input signal.

 

[JoannesPaulus]

Re: Input signal for DAC

In the verilog-a code, instead of using count=count+1, use

count=floor(512*sin(2*M_PI*f*n*tp))+512;

for a 10-bit DAC.

You also need to remove

if(count==4096)
count=0;

...and add

n=n+1;

I might have forgotten some little details, but I'm sure you'll figure them out!

 

[samvelc]

Re: Input signal for DAC

In the verilog-a code, instead of using count=count+1, use

count=floor(512*sin(2*M_PI*f*n*tp))+512;

for a 10-bit DAC.

You also need to remove

if(count==4096)
count=0;

...and add

n=n+1;

I might have forgotten some little details, but I'm sure you'll figure them out!

Thanks,
I will try it.

 

[cruzer2060]

hi friend

can you explain how to convert digital sinoidal input signal to analog in verilog.
actually i need to implement verilog code to convert sin 2pi analog signal into digital (ADC).

i can get an idea with your code.

actually i need to submit this assignment by end of this week.

please help me.