some questions sigma-delta DAC

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lcking

Joined: 12 Sep 2002
Posts: 34

12 Jun 2003 16:41 sigma delta dac dem

Where can I download some paper about the theory of DEM techniques for Sigma-delata DAC?
and, who can explain the encode rule of the signed thermometer code?

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svicent

Joined: 11 Jul 2001
Posts: 413
Helped: 23

12 Jun 2003 17:52

You can get information:

1 Elektroda forum. Search sigma delta

2 XILINX application note XAPP154.PDF "Virtex ynthesizable Delta-Sigma DAC"

3 Circuit Cellar #140 March 2002, pag 52..59 "Balancing D/A Conversion on One Pin

nk_me

Joined: 13 Sep 2003
Posts: 1

13 Sep 2003 4:38 Re: some questions sigma-delta DAC

DEM is relatively easy to understand.
Many papers are available.
it is difficult to determine the structure of the system,
especially the structure of the modulator.