[sdiy] SAD1024 different modes

[Harry Bissell Jr]

I don't have the data sheet in front of me.

Fig 9 would be the one where you reverse phase the
clocks, so that one half is always in sample mode ?

That would be my choice. This way you have an
actual sample for each point... not an n-1 sample
sometimes.

Seems like for physical modeling the increased
resolution would be good.

H^) harry

--- "JH." <jhaible at debitel.net> wrote:

> Hi,
> 
> I was wondering about the usefullness of the
> different modes of operation
> for
> a SAD1024, in the case that I only need 512 stages.
> 
> I could
> 
> (a) just use one section
> 
> (b) connect both sections in parallel (as done in an
> Electro Harmonix
> Flanger)
> 
> (c) use both sections with differential amps (data
> sheet figure 10)
> 
> (d) use both sections in parallel/multiplex
> operation (data sheet figure 9)
> 
> The 5th method, serial connection and higer
> clocking, is not useful for my
> application
> (physical modeling), because I want the create very
> short delays, so the
> upper
> clock rate limit is a factor here.
> 
> I guess (a) has no benefits except less loading of
> the clock generator.
> 
> (b) looks trivial - might give 3dB SNR improovement
> over (a))
> 
> (c) is said to give cancellation of even order
> distortion
> 
> (d) most interesing version - but is it the best
> solution?
> 
> Any ideas?
> 
> JH.
> 
>