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vetal-esher / 18bit-DIT

Adding digital output for old synths
MIT License
13 stars 0 forks source link

Enhancement: IC options #1

Open lje opened 1 year ago

lje commented 1 year ago

The AK4103AVF seems to be discontinued and out of stock. Will you update the project to other IC options like WM8804G?

vetal-esher commented 1 year ago

May be, although i don't have any WM8804 and working now on another project about DIT-ting MT32. So, AK4103 is out of stock? That's pity, is was fine chip with 18bit support.

lje commented 1 year ago

Digikey states obsolete/out-of-stock. I had no luck finding one on Aliexpress or eBay as well. Same for TC9271N. The 16bit TC9231N can still be bought easily, as well as the WM8804G. This is the situation for Germany/Europe at least, it may be different on other continents.

Out of curiosity, I'm looking forward to your MT32 project. I only got an SC88VL myself and know the japanese 16bit option you linked as well, but are looking to get/make an 18bit mod for it.

vetal-esher commented 1 year ago

MT32-DIT is based on Gowin FPGA (as the cheapest solution) and DIT4192, the only thing stopping me from publishing it is that the project is not ready yet in software stage. PS. due to war sanctions, Digikey, Mouser and others have banned russian IPs, so i don't know the availability of DIT4192 too. WM8804 can be found at Aliexpress, so i need to order some of them

lje commented 1 year ago

Mouser doesn't even know the AK4103 (searched for AK4103, AK4103A and AK4103AVL). DIT4192 is available on both Digikey and Mouser.

vetal-esher commented 1 year ago

Btw, AK4103 is now available at Aliexpress, at least one seller has it.

vetal-esher commented 1 year ago

Digikey states obsolete/out-of-stock. I had no luck finding one on Aliexpress or eBay as well. Same for TC9271N. The 16bit TC9231N can still be bought easily, as well as the WM8804G. This is the situation for Germany/Europe at least, it may be different on other continents.

Out of curiosity, I'm looking forward to your MT32 project. I only got an SC88VL myself and know the japanese 16bit option you linked as well, but are looking to get/make an 18bit mod for it.

I have published MT32-DIT project, it is not done yet, but the hardware part is finished. Project will be updated when the progress goes forward.

lje commented 1 year ago

I found a seller for the AK4103 on Aliexpress now, thanks. Thanks to your Gerber files, I've ordered PCBs at JLCPCB now. Since they currently offer assembly basically for free, I'll have them solder the capacitors and resistores as well (I've added a suitable BOM and CPL to this comment). I'll have to manually solder the AK4103 and the PE-65612NL.

I noticed that they have a WM8804G in their parts library. In case you create modified version of this project using a WM8804G, people could order PCBs with all the SMD parts pre-soldered, leaving only the PE-65612NL for manual soldering.

JLCPCB-BOM.csv JLCPCB-CPL.csv