To reduce the spurii due to quantization distortion. Here is an explanation, in Section 4

http://www.analog.com/static/imported-files/tutorials/450968421DDS_Tutorial_rev12-2-99.pdf

Regards,

Javier

El 20/06/2011 17:39, Luis Cupido escribió:
Well, if we really need to filter it out
we better filter the MSB and square it
again...

Why having a DAC for ???

Right ?

Luis Cupido.
ct1dmk.

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Javier Herrero                            EMAIL: jherr...@hvsistemas.com
Chief Technology Officer
HV Sistemas S.L.                          PHONE:         +34 949 336 806
Los Charcones, 17                         FAX:           +34 949 336 792
19170 El Casar - Guadalajara - Spain      WEB: http://www.hvsistemas.com


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