Somewhere, on one of the partitions on one of the drives visible to one of the OSs on one of my computers, I have a complete NCO written in VHDL pretty much ready for dropping into an FPGA (you do the grunge work of assigning ports, etc.).
IF I remember correctly (guaranty does not cover memory), an Altera AE found it for me. If anyone wants to try it contact me directly and I will look for it. Phil, K3IB ----- Original Message ----- From: "Jim Lux" <[EMAIL PROTECTED]> To: "Jeff Anderson" <[EMAIL PROTECTED]>; "[EMAIL PROTECTED] Biz" <flexradio@flex-radio.biz> Sent: Wednesday, November 23, 2005 10:10 AM Subject: Re: [Flexradio] frequency calibration etc > > > Or, use a fixed oscillator, and run an NCO in the FPGA to create an offset > frequency, which you then mix with the fixed oscillator to create your > locked output. [This is what we are doing in an experimental deep space > transponder.. where phase noise is of obssessive concern]
