promixe
Well-known member
UPDATE: in 2012 this project was (re)named THATDIP adapter that is housed in Lucidity Mic Preamp PCB (the support thread for which is HERE).
This thread here is a mini-diary of the R&D process for what has become Universal Mic Preamp Controller (UMPC) and Lucidity Digitally Controlled Preamps.
Another relevant thread on how Lucidity Preamps and UMPC system shaped themselves into their current forms is HERE.
Hi All,
I've designed this a while ago but just now had time to build a prototype:
Basically, this is a QFN to DIP32 adapter but with integrated bypass caps as close as possible to the package pins. I've also separated the power supply pins of the 1570 and 5171, so one could run the 1570 at +/-18V and 5171 at +/-17V to maximize headroom, etc... If you don't want to do this just connect the same supply to these pins and you're good to go.
For people not familiar with this killer mic pre chipset - check it out here - http://www.thatcorp.com/DigMicPre.shtml
Pinout below has original pin numbers in () as per THAT's datasheet. This is a 15.24mm wide DIP 32-pin package, very easy to pop into any breadboard, etc.
Given the DIY difficulties to work with QFN packages, would people here be interested if I offered this package for sale in the next month or so? It would be the entire assembled adapter as on the picture above:
THAT1570
THAT5171
0805 X7R bypass caps x6
0805 C0G bypass cap x1 (for RFI protection, per individual request could be omitted)
Gold plated pins for DIP socket
Thoughts?
This thread here is a mini-diary of the R&D process for what has become Universal Mic Preamp Controller (UMPC) and Lucidity Digitally Controlled Preamps.
Another relevant thread on how Lucidity Preamps and UMPC system shaped themselves into their current forms is HERE.
Hi All,
I've designed this a while ago but just now had time to build a prototype:
Basically, this is a QFN to DIP32 adapter but with integrated bypass caps as close as possible to the package pins. I've also separated the power supply pins of the 1570 and 5171, so one could run the 1570 at +/-18V and 5171 at +/-17V to maximize headroom, etc... If you don't want to do this just connect the same supply to these pins and you're good to go.
For people not familiar with this killer mic pre chipset - check it out here - http://www.thatcorp.com/DigMicPre.shtml
Pinout below has original pin numbers in () as per THAT's datasheet. This is a 15.24mm wide DIP 32-pin package, very easy to pop into any breadboard, etc.
Given the DIY difficulties to work with QFN packages, would people here be interested if I offered this package for sale in the next month or so? It would be the entire assembled adapter as on the picture above:
THAT1570
THAT5171
0805 X7R bypass caps x6
0805 C0G bypass cap x1 (for RFI protection, per individual request could be omitted)
Gold plated pins for DIP socket
Thoughts?