Forum Discussion

Honored Contributor

13 years ago

sine wave generation

can anyone please give me idea about how to generate sine wave in vhdl.....please

Honored Contributor

13 years ago

lookup goertlez's algorithm.

Basically:

sin(a+b) = sin(a)cos(b) - cos(a)sin(b)

sin(a-b) = sin(a)cos(b) + cos(a)sin(b)

so:

sin(a+b) = 2sin(a)cos(b) - sin(a-b)

and you can generate the terms in sequence with a multiply and an add