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Cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W single output POE DCDC-Converter TRACO THN30 Generic muRata MEJ1DxxxxSC, 19.5x9.8x12.5mm, 5.2kVDC Isolated, 2W, SIP package style, https://power.murata.com/data/power/ncl/kdc_mej1.pdf Abracon Miniature Ceramic Smd Crystal ABM3 http://www.abracon.com/Resonators/abm3.pdf, 5.0x3.2mm^2 package Abracon Miniature Ceramic Smd Crystal ABM8AIG https://abracon.com/AIGcrystals/ABM8AIG.pdf, 3.2x2.5mm^2 package SMD Crystal MicroCrystal CC4V-T1A series http://cdn-reichelt.de/documents/datenblatt/B400/CC4V-T1A.pdf, hand-soldering, 5.0x1.9mm^2 package SMD SMT SPST EVQPUL EVQPUC SMD SMT mems oscillator Analog BGA-49, 6.25x6.25mm, 49 Ball, 7x7 Layout, 0.4mm Pitch, https://pdfserv.maximintegrated.com/package_dwgs/21-100489.PDF WLCSP-25, 5x5 raster, 2.097x2.493mm package, pitch 0.8mm; http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf#p495 TFBGA-216, 15x15 raster, 13x13mm package, pitch 0.4mm; see section 6.3 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for ECP5 FPGAs, based on SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W DCDC-Converter, http://power.murata.com/data/power/ncl/kdc_nma.pdf Murata NMAxxxxSC footprint based on the larger board underneath the smaller board. #Kicad 7 From 97a7a0b59762910e1238688f287f725f632d4e8f Mon Sep 17 00:00:00 2001 Subject: [PATCH] schematics tweaks README.md Normal file Unescape Hardware/Panel/precadsr-panel-Gerbers/precadsr-panel-PasteBottom.gbp Normal file View File footprint "Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles_Shaft_Centered" (version 20211014) (generator pcbnew Show-stopping bugs needing bodges: Errant connection between R25 and R1. This needs to be fixed elsewhere ec67859b1c Start of LM13700 version to see why 2dd0b8c0c736720a0b064bbe1304dc9562beb260 init 969311f00cbb6d6ece9a25b5fb1d4e2884e468c0 Module Spellbook Pages Fab Plant Research Pages Fab Plant Research Table of Contents PSU (power.

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