D-Lev Engineering CodexAug 27, 2024
At long last, beginning work on new multi-board I/O assembly with option for dual modular DAC, buffered balanced output, and 12Wpc speaker output with USB Power Delivery. With many many thanks to @sidprice and @jaxter184 on the overall systems design and architecture planning back in January, as well as Raph A., and Kate W. from the NYC Resistor community.
Evan KahnAug 27, 2024
Show threadD-Lev Engineering Codex
When (if) these boards work, they will feature a few original circuits:
- flexible power supply: standard 5V USB, or a barrel jack adapter or 12V USB-C/PD
- Dual, modular ESS DACs; the secondary DAC is optional, and drives an offboard, isolated balanced stereo out
- 93% efficient, class D speaker amp that can drive up to 12 watts per channel into a 4-ohm load, with a 3-9V input voltage range; based on a relatively new IC from Diodes Incorporated
- Onboard USB/Serial and USB/MIDI conversion
Aug 27, 2024 at 2:28pmWeb
Show threadD-Lev Engineering CodexAug 27, 2024
@ Theremin people: these are not quite ready to productize / sell yet.
However: if you have an electrical engineering / embedded systems background and I've talked to you at some point in the past three years about participating / contributing to the project, now may be a good time to get involved. -ESK