On 27/01/11 14:33, jimlux wrote:
On 1/27/11 5:17 AM, Luis Cupido wrote:
Hi,
Is there a DDS spur prediction software around ?
Not generically..
There is a dissertation out there with some matlab code. I'll see if I
can find a link
Most of the time what I do is write a little program in
Magnus Danielson wrote:
On 27/01/11 14:33, jimlux wrote:
On 1/27/11 5:17 AM, Luis Cupido wrote:
Hi,
Is there a DDS spur prediction software around ?
Not generically..
There is a dissertation out there with some matlab code. I'll see if I
can find a link
Most of the time what I do is write
Bruce Griffiths wrote:
Magnus Danielson wrote:
On 27/01/11 14:33, jimlux wrote:
On 1/27/11 5:17 AM, Luis Cupido wrote:
Hi,
Is there a DDS spur prediction software around ?
Not generically..
There is a dissertation out there with some matlab code. I'll see if I
can find a link
Most of the
Bruce Griffiths wrote:
Bruce Griffiths wrote:
Magnus Danielson wrote:
On 27/01/11 14:33, jimlux wrote:
A problem with using a 2^(n-1) N 2^n is that the phase-sequence
will run short compared to the usual binary bits taken from the top
of the DDS, so this will needs to be handled. It
I don't know how good it has to be but have you considered the Si570 or
even one of the bigger more power hungry candidates from silabs?
Really easy to drive this chip!
- Henry
Luis Cupido schrieb:
Jim, Bob, Henry, Brian,
Thanks to all.
Very good.
yeap, I do work on matlab so I think there
Jim, Bob, Henry, Brian,
Thanks to all.
Very good.
yeap, I do work on matlab so I think there is plenty now
to keep me busy ;-)
tks.
Luis Cupido
ct1dmk.
p.s.(what's cooking)
I need a relatively narrow tunning range
but absolutely free of close in spurs,
willing to see if a modest size DDS
On 1/28/11 3:59 AM, Luis Cupido wrote:
Jim, Bob, Henry, Brian,
Thanks to all.
Very good.
yeap, I do work on matlab so I think there is plenty now
to keep me busy ;-)
tks.
Luis Cupido
ct1dmk.
p.s.(what's cooking)
I need a relatively narrow tunning range
but absolutely free of close in spurs,
On Fri, January 28, 2011 6:00 am, Luis Cupido wrote:
p.s.(what's cooking)
I need a relatively narrow tunning range
but absolutely free of close in spurs,
willing to see if a modest size DDS
(inside an FPGA) will do so... and what parameters will
be...
A couple of guys came up with a scheme
Hi,
Is there a DDS spur prediction software around ?
I mean for an arbitrary DDS design, like I would
implement with logic or fpga etc.
A code where I can enter nr of bits adc bits etc.
(not a thing for a particular analog-devices chip or
other dds chip)
tks.
Luis Cupido
ct1dmk.
On 1/27/11 5:17 AM, Luis Cupido wrote:
Hi,
Is there a DDS spur prediction software around ?
Not generically..
There is a dissertation out there with some matlab code. I'll see if I
can find a link
Most of the time what I do is write a little program in matlab/octave,
run a bunch of
On 1/27/11 5:17 AM, Luis Cupido wrote:
Hi,
Is there a DDS spur prediction software around ?
I mean for an arbitrary DDS design, like I would
implement with logic or fpga etc.
A code where I can enter nr of bits adc bits etc.
(not a thing for a particular analog-devices chip or
other dds
On 1/27/11 5:17 AM, Luis Cupido wrote:
Hi,
Is there a DDS spur prediction software around ?
I mean for an arbitrary DDS design, like I would
implement with logic or fpga etc.
A code where I can enter nr of bits adc bits etc.
here's a good start.. Martin Pechanec's work...
Subject: [time-nuts] spur prediction DDS software
Hi,
Is there a DDS spur prediction software around ?
I mean for an arbitrary DDS design, like I would
implement with logic or fpga etc.
A code where I can enter nr of bits adc bits etc.
(not a thing for a particular analog-devices chip or
other
The best once I found is this:
http://www.holmea.demon.co.uk/FracN/Simulate.htm
- Henry
Luis Cupido schrieb:
Hi,
Is there a DDS spur prediction software around ?
I mean for an arbitrary DDS design, like I would
implement with logic or fpga etc.
A code where I can enter nr of bits adc bits
Luis Cupido wrote:
Is there a DDS spur prediction software around ?
I mean for an arbitrary DDS design, like I would
implement with logic or fpga etc.
That dds_oddities.pdf file I linked to yesterday has a
couple references on page 4:
- Martin Pechanec’s MATLAB scripts ( mentioned earlier
15 matches
Mail list logo