Pro Audio Design Forum

Keep in mind that the pad is not ground (there is no ground pin on the chip), but Vee (V-), so I'm not sure if extending it that much will not affect stuff above it. Wayne might clear that up more. Also, most PCB fabs have their basic annular ring spec at 12mil, which means that your via diameter ha...

promixe - Were you able to get any 5173 samples? Hi Wayne, I haven't been able to get to ordering these yet, unfortunately. I'm finishing up some projects that are taking up most of my time right now, and will give Tom a call as soon as I'm done with them. PS: Thanks for checking out Lucidity Pream...

also made a package for the DIL16 prototyping version of the 1570. You may be interested to know that I make prototyping adapters with 1570 and 5171 on board - http://diy.innersonix.com/shop/thatdip-adapter Unfortunately I don't use Eagle, so I can't suggest much, but it seems you figured it out al...

Hi, It's better to maximize the copper area under the chip to spread the heat better, therefore having the pad on the top and the bottom of the PCB joined by vias is a good start. My design has 4 vias to stitch the pads, not 5, the number doesn't matter that much at the end of the day. =) I have 4 t...

I don't think it's necessary to reverse-engineer the drivers. All you do is install them on your host and your device appears in the system as a simple COM serial port. Your application then uses it to communicate with the device as if it would through UART. It's very simple - I use it instead of JT...

JR, if you are asking with regards to your drum tuner I would either go with: - FTDI chip ($2/pc UART/SPI/I2C <-> USB very easy with ready-to-use drivers from the manufacturer). This could be rapidly prototyped. - Bluetooth (harder to develop IMO, IIRC you'd need FCC wireless approval, but then any ...

PS not to hijack but i am curious about IPAD, or mac/PC software to talk to digital controlled gadgets like this. I use WIZnet modules ( WIZ820io in particular ) in conjunction with AVR Xmega on the hardware side of things. On the software side I haven't started in depth yet (just preliminary proto...

Ok, I see your point about splitting Rg's. Do you think splitting Vcc/Vee for the chips is necessary as was done on the 1570/5171 adapter? As far as the adapter's intended purpose do you think many people will run 1570 at ±18V and 5171 at ±17V to get that little extra input headroom? The next form f...

thatdipmini_v1.JPG I call this THATDIP mini (as opposed to THATDIP full-featured 1570/5171 adapter I designed a while ago). It's 90% done. It is DIP-24 with 1570/5173 on-board and most essential pins routed out to make a great mic preamp in as tiny DIP package as possible. I will post more details ...

you could move the phantom resistors over to the XLR in fig 2 also, while it is not usual to leave unused inputs floating, Over time the caps will discharge to 0v due to internal leakage. Yes, but you see, the main reason for the double phantom resistors in figure 2 was that the caps do NOT dischar...