[sdiy] Interesting blog with Roland Alpha Juno details

[Mike Bryant]

Yes they're all on 65nm CMOS nowadays so current is more or less proportional to clock speed.

________________________________
From: grant musictechnologiesgroup.com <grant at musictechnologiesgroup.com>
Sent: 04 November 2024 17:45
To: Mike Bryant <mbryant at futurehorizons.com>; Synth-diy <synth-diy at synth-diy.org>; Peter Pearson <electrocontinuo at gmail.com>
Subject: Re[2]: [sdiy] Interesting blog with Roland Alpha Juno details

Thanks!  I will pass this info on. So, not being a PLD guy, I do recall them always being poo-pooed because of how much current they use.  Are this substantially better on that front? The quiescent  current looks really reasonable to me, but I don't have any frame of reference to compare to whatever todays version of a 22v10 is.

GB



------ Original Message ------
From "Mike Bryant" <mbryant at futurehorizons.com<mailto:mbryant at futurehorizons.com>>
To "Synth-diy" <synth-diy at synth-diy.org<mailto:synth-diy at synth-diy.org>>; "Peter Pearson" <electrocontinuo at gmail.com<mailto:electrocontinuo at gmail.com>>
Date 11/4/2024 9:10:21 AM
Subject Re: [sdiy] Interesting blog with Roland Alpha Juno details

Well it's not in DIP, but these might be worth looking at for small logic applications.
https://www.electronicsweekly.com/news/products/fpga-news/few-pin-programmable-logic-devices-have-coding-free-programming-2024-10/


> On Nov 1, 2024, at 1:32 PM, Tom Wiltshire <tom at electricdruid.net<mailto:tom at electricdruid.net>> wrote:
>
> So...can you have a guess what resolution the sawtooth output is?
>
> The clock to the DCO chip is the same 12MHz clock used for the 8032 microprocessor. So if it's 12MHz sample rate, it's not half bad! It's like an early version of the Novation Peak!
>
> If we could get a nice little FPGA on a 24-pin DIP, it'd be nice to make a modern version of something like this. Maybe with SPI.
>
> Thanks,
> Tom
>

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