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Total 4 documents matching your query.

1. Re: LF: Simple PIC based DDS for VLF (score: 1): Author: Andy Talbot <[email protected]>; Date: Sun, 6 Feb 2011 12:05:33 +0000; That's a very good point - having suffered this FSK-losing-coherence problem once before. It could all be done inside the PIC, maintaining two accumulators and then using one or the other to addres; /rsgb_lf_group-archives/html/rsgb_lf_group/2011-02/msg00102.html (12,918 bytes)
2. LF: Simple PIC based DDS for VLF (score: 1): Author: Andy Talbot <[email protected]>; Date: Sat, 5 Feb 2011 18:57:34 +0000; 9kHz OPs may be interested in this DDS suitable for audio/ VLF using just a 16F628 PIC, , R-2R ladder and op-amp filter. It can generate frequencies up to about 40kHz with typical DDS high resoluti; /rsgb_lf_group-archives/html/rsgb_lf_group/2011-02/msg00434.html (10,030 bytes)
3. Re: LF: Simple PIC based DDS for VLF (score: 1): Author: wolf_dl4yhf <[email protected]>; Date: Sun, 06 Feb 2011 12:47:52 +0100; Thanks Andy, nice project.. maybe I should dig out the PIC programmer again... ! One suggestion for VLFers: A PIC doesn't cost a fortune. Build two of these generators, and clock them with the same s; /rsgb_lf_group-archives/html/rsgb_lf_group/2011-02/msg00451.html (10,993 bytes)
4. Re: LF: Simple PIC based DDS for VLF (score: 1): Author: Andy Talbot <[email protected]>; Date: Sun, 6 Feb 2011 13:53:48 +0000; All done.... 5 minutes to do the PIC code, .. and an hour or so to test and update the documentation. http://www.g4jnt.com/PIC_DDS.zip now also contains PIC code " cohFSKsrc " that generates F; /rsgb_lf_group-archives/html/rsgb_lf_group/2011-02/msg00874.html (14,674 bytes)

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