Bernhard Wörndl-A.

... electronics and stuff

[Bernhard Wörndl-A. @berniwa]

@tobjectpascal @Cody_Hubman @ElectronicsbyJH Using single-failure tolerant resistors and Y capacitors can count as "isolation" (if done correctly). Usually for most powerline communication standards, you would use a isolation transformer and a X-class capacitors. An optocoupler usually difficult for sinus signals.

[Bernhard Wörndl-A. @berniwa]

@MarcoReps Its pretty interessting in Austria. Until a few years ago, DHL Express was really unusable. Then they sold their non-express business to the Austrian Postal service and suddenly express works like a charm. Unless you send to Germany (just use UPS for that).

[Bernhard Wörndl-A. @berniwa]

@QVHenkel There is just one small catch, the AM69 only supports DDR4 and I'm not sure if there will be CAMM2 DDR4.

[Bernhard Wörndl-A. @berniwa]

@Mirko_DIY @QVHenkel Do you know the differential coplanar waveguide? Works wonders ;-)

[Bernhard Wörndl-A. @berniwa]

@sad_electronics @jrsikken @ghidraninja Please don't do that to me. I'm 100% interested (both). I'll talk to me finance girls if I get a christmas present.

[Bernhard Wörndl-A. @berniwa]

@Mstr_Kensgold @QVHenkel Having a framebuffer in the MCU allows you to shutdown the main RAM during sleep. Having a graphics accelerator with proper DMA allows you to update the display (time) with minimal real "compute". So most energy efficient system, is one that doesn't use the CPU at all.

[Bernhard Wörndl-A. @berniwa]

@Mstr_Kensgold @QVHenkel NXP? ;-) Our customer wanted an MCU based-solution - so one major factor was a good GUI design tool.
Therefore the MCU vendor has actually been set by the software teams preferences. Especially for smartwatches we selected an MCU with enough internal memory to run the framebuffer

[Bernhard Wörndl-A. @berniwa]

@Mstr_Kensgold @QVHenkel We actually never used a metric like that. For such system, it is much more important to have a SOC, that allows you to offload operations (DMA, graphics acceleration, framebuffer handling, ...) so you use it as little as possible.

[Bernhard Wörndl-A. @berniwa]

@xiroicat @QVHenkel Sorry, open now

[Bernhard Wörndl-A. @berniwa]

@sad_electronics @DanielBogdanoff That is for 200MHz 2-channel. I think this really is a hard sell.

[Bernhard Wörndl-A. @berniwa]

@StonedEdgeMods Be carefull: you are missing a solid ground below some pairs, so the impedance will probably be off quite a bit. Depending on the length an resolutiom it could be fine.

[Bernhard Wörndl-A. @berniwa]

@bencrawford_15 @TXInstruments Why not increase the aperture? BGAs don't really mind, if the pad sizes are moderately larger (or smaller) than their counterpart. What IC is it?

[Bernhard Wörndl-A. @berniwa]

@sad_electronics C7 will explode during ESD testing, as it will directly see 4-8kV.
FB8 should be avoided at any cost.

[Bernhard Wörndl-A. @berniwa]

@will_whang The IMX8M Quad was released in 2017, so this really was the same era.

[Bernhard Wörndl-A. @berniwa]

@jrsikken True. The question is how much that matters in the grand scheme. Not having a band (that the radio supports) will matter. Btw. we made a nice multiband pcb antenna design (for NB) a while back that I could share.

[Bernhard Wörndl-A. @berniwa]

@jrsikken Any reason, why not to go multiband?

[Bernhard Wörndl-A. @berniwa]

@sad_electronics WeEn is actually a joint venture of Nexperia ;-)

[Bernhard Wörndl-A. @berniwa]

@jrsikken Yeah, RS485 is pretty nice when it comes to EMI, as long as you use Full-Failsafe transceivers - that FTDI doesnt use in their cables xD @jrsikken how do the TEM results compare to chamber results? Is it a viable option?