jimlux at earthlink.net
Tue Jun 21 18:26:36 UTC 2011
On 6/21/11 9:38 AM, David Martindale wrote:
> 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)..
Yes..mea culpa, miserere mei
coffee had not been fully metabolized.
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