Forum Discussion
Altera_Forum
Honored Contributor
11 years ago1) If you are going to mix at 10Mhz then you need to upsample(interpolate) to 10MHz.
2) 10000KHz/178.571KHz is a weird fraction and = 10000000/178571 that I doubt if it simplifies any further. Then you have to interpolate by num/8 (8 done in rrc) and decimate by denum. I don't know if your cic will support that sort of figure. 3) use system clock of 10MHz on both fir and cic with a fifo in between to control rate. You cannot run cic output at 10MHz unless you upsample to 10MHz through FIR+CIC Who decides 178.571KHz. Is't an audio application?