Hello max,
Well I cant answer your question directly, but I
subscribe to a magazine called "QST". This is a mag for
ham radio people, and a few months ago I saw an artical
that went into great detail about this IC. I will try
to find it and get back to you.
andrew
--- Max Prager <spam_OUTmpragerTakeThisOuT
CYLLENE.UWA.EDU.AU> wrote:
> Hi everyone,
> I have been playing around with the Harris HSP45102
> DDS chip and I am
> having a little trouble using it. I am assuming the
> serial data is being
> tranfered from the PIC to the DDS OK because of the
> fact that when the
> data is being transmitted, the DDS outputs 'stuff'
> (not even close to a
> sine wave but is is doing something) and when
nothing
> is being
> transfered it outputs nothing. I do not fully
> understand the way the
> registers work in the DDS and cannot find any info
on
{Quote hidden}> it other than the
> data sheet which doent tell the sequence of events
> to give me an
> output. I know that the ENPHAC, TXFR and LOAD pins
> play a big part of
> the operation but are unsure on how to use them in a
> proceedure to give
> me an sine output.
> When I keep them all low it has the above affect and
> when I play around
> with them in my PIC program it usually outputs
> nothing. Does anyone know
> the steps to take to give a sine output on the
> HSP45102.
> Any help will be greatly appreciated
>
> Max
>
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