abt designing cic filter

I have to design cic interpoaltion filter for the application of QPSK
modulator.Can anyone suggest me how can i go for that?

On Thu, 05 Jul 2007 12:39:15 -0500, "hertfordshire"
<keyur_29102000@yahoo.com> wrote:

>I have to design cic interpoaltion filter for the application of QPSK
>modulator.Can anyone suggest me how can i go for that?

I'd start by reading some articles or books that describe CIC filters
and how to use them.   Once you understand that well then applying it
to a modulator should be straightforward.

Eric Jacobsen
Minister of Algorithms
Abineau Communications
http://www.ericjacobsen.org

"hertfordshire" <keyur_29102000@yahoo.com> wrote in message
news:iPudnapY9etesRDbnZ2dnUVZ_oytnZ2d@giganews.com...
> I have to design cic interpoaltion filter for the application of QPSK
> modulator.Can anyone suggest me how can i go for that?

Best place to start is to read the datasheets for cic on altera and/or
xilinx websites. -Clark