Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
Glad to hear I didn't screw up completely. Going to spend tomorrow morning placing/routing the PCB with the goal of submitting it to OSHPark for a run next week. Will report back once I have the gerber files.
Looks fine. Toch?
intron
What is Toch? Didn't see anything like that mentioned in the chip pinout, not sure if I'm missing something for the SPI connections?
Excellent point for the INCLK pin. I don't see myself driving the chip with an external clock source so I'll pull it to ground.
I used all 0603, and they're fine. My supply planes are nice and quiet.
I didn't fancy placing those tiny 0402 capacitors. Since I'm just doing a cheap OSHPark run of 3 boards, I hopefully won't lose too much if I run into issues.
This is my first attempt at a single-chip schematic. No joke, I was more or less copying the c-scape design for their initial test PCB. Electrically I think this is all correct? I'm going with the same decoupling capacitor values* that were mentioned in a post by intron.
Looks fine. Toch?
intron
What is Toch? Didn't see anything like that mentioned in the chip pinout, not sure if I'm missing something for the SPI connections?
Maybe add a solder jumper from INCLK to GND.
As far as calculating bypass caps, to do a proper job you need to know the layout of the board and the exact specifications of the capacitor. As they say: "ain't nobody got time for that!"
As far as calculating bypass caps, to do a proper job you need to know the layout of the board and the exact specifications of the capacitor. As they say: "ain't nobody got time for that!"
Excellent point for the INCLK pin. I don't see myself driving the chip with an external clock source so I'll pull it to ground.
since we're on the topic - I'm assume switching to 0603 size caps doesn't pose a problem, correct?
After hand soldering 150 0402 caps, I'm ready to not ever do that again
After hand soldering 150 0402 caps, I'm ready to not ever do that again
I used all 0603, and they're fine. My supply planes are nice and quiet.
I didn't fancy placing those tiny 0402 capacitors. Since I'm just doing a cheap OSHPark run of 3 boards, I hopefully won't lose too much if I run into issues.