Hi,
I found two PLCC STEL 1175 in a rack mounted synthesizer I have.
I'd be willing to sell the chips.
Would they work?
Cheers,
Corby
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Hello,
I think that not as a direct replacement of the 1173. The 1175 has
32-bit phase increment resolution and 10-bit DAC output. The 1173 has
48/12 bit.
Regards,
Javier
On 14/05/2014 17:13, cdel...@juno.com wrote:
Hi,
I found two PLCC STEL 1175 in a rack mounted synthesizer I have.
Hi Corby,
Thanks very much for the offer, but it looks like it would still be a
big project to use an '1175 to replace an '1173. I think I'll have to pass.
The package difference (PLCC68 vs. PLCC44) would still require a
daughterboard of some sort. I've learned a little over the past week
Hi Ed,
You could probably use a 32 bit DDS, but there will be a whole bunch of
little trimmings you would have to do in the CPU code which would
require quite a bit of (interesting) work. I would say it would be
beyond the scope of most folks.
Cheers,
Magnus
On 05/14/2014 06:53 PM, Ed
Hi Magnus,
Yeah, I like a challenge, but let's keep things reasonable! :) The
package conversion is easy to accomplish, the FPGA would be a real
stretch for me, but reverse engineering the system code is more than I
want to tackle - although I have thought about it!
Ed
On 5/14/2014 11:17
Hi Ed,
Reverse-engineering it would be fun. It's not that much code.
Anyone got a EPROM dump lying around? :)
But regardless, just doing reverse engineering is not enough, one needs
to adjust frequency programming and possibly adjust some other parameters.
Reverse-engineering as such would
