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3.0, http://www.ti.com/lit/ds/symlink/lm75b.pdf VSSOP-8 3.0 x 2.0mm, orientation marker at anode, https://dammedia.osram.info/media/resource/hires/osram-dam-5824137/SFH%204257_EN.pdf LED PLCC-2 SMD TOPLED LED PLCC-2 SMD package for Osram SFH9x0x series of boards, https://learn.adafruit.com/adafruit-feather/feather-specification Footprint for Mini-Circuits case MMM168 (https://ww2.minicircuits.com/case_style/MMM168.pdf Footprint for Mini-Circuits case TTT167 (https://ww2.minicircuits.com/case_style/TTT167.pdf Footprint for Mini-Circuits case CD542 (https://ww2.minicircuits.com/case_style/CD542.pdf) using land-pattern PL-049, including GND-connections and vias (https://ww2.minicircuits.com/pcb/98-pl049.pdf Ai Thinker Ra-01 LoRa module wireless zigbee 802.15.4 flash crypto ATSAMR21G18 AT45DB041E TECC508A U.Fi Class 4 Bluetooth Module with on-board Fireball/Fireball.kicad_pcb | 7889 Fireball/Fireball.kicad_sch | 48 dd8c61c34f A couple more minor clearance tweaks couple more GND-stitch vias eb8580ef62 Undo converting GND to GND_JMP and fix everything that broke From 969311f00cbb6d6ece9a25b5fb1d4e2884e468c0 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Notes from MK's PCB livestream - avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals - make power connection traces larger; MK uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some supporting components. ~$6 in parts, mostly down to PCB edge 4.9399999999999995mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 44-pin D-Sub connector horizontal angled 90deg THT female pitch 2.77x2.84mm pin-PCB-offset 9.9mm mounting-holes-distance 33.3mm mounting-hole-offset 33.3mm 26-pin D-Sub connector horizontal angled 90deg THT male pitch 2.77x2.84mm pin-PCB-offset 14.56mm mounting-holes-distance 33.3mm mounting-hole-offset 33.3mm 26-pin D-Sub connector horizontal angled 90deg THT female pitch 2.77x2.54mm pin-PCB-offset 9.4mm 37-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.77x2.84mm, pin-PCB-offset 9.9mm, distance of mounting holes 47.1mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.29x2.54mm, pin-PCB-offset 9.4mm, see http://docs-europe.electrocomponents.com/webdocs/1585/0900766b81585df2.pdf 15-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch.

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