[sdiy] Interesting blog with Roland Alpha Juno details

[Mike Bryant]

Yes but nobody stocks the useful state machine ones.

________________________________
From: Neil Johnson <neil.johnson71 at gmail.com>
Sent: 04 November 2024 17:42
To: Mike Bryant <mbryant at futurehorizons.com>
Cc: Synth-diy <synth-diy at synth-diy.org>; Peter Pearson <electrocontinuo at gmail.com>
Subject: Re: [sdiy] Interesting blog with Roland Alpha Juno details

Those look like Renesas GreenPAKs:
https://www.renesas.com/en/products/programmable-mixed-signal-asic-ip-products/greenpak-programmable-mixed-signal-products

I've still got the Silego eval board somewhere....

(Silego -> Dialog -> Renesas)

Neil


On Mon, 4 Nov 2024 at 17:13, Mike Bryant <mbryant at futurehorizons.com<mailto:mbryant at futurehorizons.com>> wrote:
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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________________________________
From: Neil Johnson <neil.johnson71 at gmail.com>
Sent: 04 November 2024 17:42
To: Mike Bryant <mbryant at futurehorizons.com>
Cc: Synth-diy <synth-diy at synth-diy.org>; Peter Pearson <electrocontinuo at gmail.com>
Subject: Re: [sdiy] Interesting blog with Roland Alpha Juno details

Those look like Renesas GreenPAKs:
https://www.renesas.com/en/products/programmable-mixed-signal-asic-ip-products/greenpak-programmable-mixed-signal-products

I've still got the Silego eval board somewhere....

(Silego -> Dialog -> Renesas)

Neil


On Mon, 4 Nov 2024 at 17:13, Mike Bryant <mbryant at futurehorizons.com<mailto:mbryant at futurehorizons.com>> wrote:
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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