[time-nuts] cordic

David Martindale dave.martindale at gmail.com
Tue Jun 21 16:38:58 UTC 2011

16 bits in is 64K *entries* of 16 bits each, a total of 1 megabit of
ROM.  The usual 90/180 degree folding could reduce that to 256 kbit.


On Tue, Jun 21, 2011 at 7:49 AM, Jim Lux <jimlux at earthlink.net> wrote:
> So then, it's a trade between a big ROM LUT or a bunch o'gates for CORDIC.
>  And for big N the bunch o'gates is probably going to be easier: 16 bit
> phase and wanting 16 bits out would be a 64kbit ROM (assuming you didn't do
> the usual thing of only needing 1/4 cycle)..

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