I made an interesting discovery on the web today. There are a lot of companies making “Breakout Boards” and “SMT to DIP Adapters” but I’ve never found an assembled one for the MCP4728 DAC used in the TurboCPU’s CV/DAC option … until today!
From here: http://www.proto-advantage.com
I just ordered one assembled breakout board (DAC chip and pins installed) as well as just a blank board with machine pins. I will test them both out. If it all works out then this is a good place to order these parts from because making the CV Option is a major bottleneck for me.
Here are the parts I ordered:
MCP4728 Breakout Board, chip included, assembled.
Part Number: PA0027-MCP4728, MCP4728 Breakout Board
MCP4728 DAC breakout board, unassembled, DAC not included.
Part Number: PA0027, unassembled with machine pins, ROUND.
A few things to note about this right up front. Since the beginning of 2014 I have added a second area on the TurboCPU’s MIDI board to put the DAC chip on. The original area is the tiny MSOP-10 footprint, the new area is a 10-pin DIP footprint.
MIDI board showing both DAC locations (in red)
This has allowed me to order MSOP-10 to DIP adapter boards… which makes assembly a bit easier. To date I’ve been using adapters from
but this new discovery from Proto-Advantage is very exciting! Now, because I’ve also been installing a 10-pin DIP socket I think the round machine pins are the better way to go as I’ve never really liked the idea of jamming square wire-wrap pins into a DIP socket.
The other alternative is for me to leave off the DIP socket and just allow you to solder the Proto-Advantage fully assembled breakout board right on the PCB. Once I get these and test them out I’ll decide which route to go.