synth_tools

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Normal -0.0914209 -0.463058 0.8816 facet normal -4.657759e-001 -8.129502e-001 3.495208e-001 vertex 3.443523e+000 2.653236e+000 2.475471e+001 facet normal -0.0729941 -0.976261 0.203926 vertex -1.01854 -7.22332 7.61242 vertex -5.83103 4.37272 7.67586 vertex -7.22332 -1.01854 7.61242 facet normal -2.880153e-004 -5.040268e-004 -9.999998e-001 ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md) How to use GitHub repository * [https://github.com/holmesrichards/precadsr](https://github.com/holmesrichards/precadsr ## Submodules This repo uses submodules aoKicad and Kosmo_panel. To clone: submodules avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals vias connect through the board, cross at 90° to minimize capacitance between traces - .3mm for non-power lines, .6mm if carrying power MK uses a ground plane. - when pressed, short +12V and the MCP4922 DAC (others may work). Probably can build our own based on SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W single output DC/DC Murata MGJ2DxxxxxxSC, 19.5x9.8x12.5mm, 5.2kVDC Isolated, 1W, dual output, SIP package style, https://power.murata.com/data/power/ncl/kdc_mej1.pdf muRata MEJ1SxxxxSC, 19.5x9.8x12.5mm, 5.2kVDC Isolated, 1W, single output, http://www.cincon.com/upload/media/data%20sheets/Data%20Sheet%20(DC)/C%20CASE/SPEC-EC6C-V12.pdf DCDC-Converter CINCON EC6Cxx single output DC/DC, http://power.murata.com/data/power/ncl/kdc_cre1.pdf Isolated 1W or 2W Single Output SM DC/DC Converters https://www.murata.com/products/productdata/8807031865374/kdc-nxe1.pdf#page=8 https://www.murata.com/products/productdata/8807031898142/kdc-nxe2.pdf#page=9 Isolated 1W single output Power Module uPOL MUN12AD03 Meanwell DCDC non-isolated converter SIP module, http://www.meanwell.com/webapp/product/search.aspx?prod=nid30 Isolated 1W single output POE DCDC-Converter TRACO TEN20 Generic, https://assets.tracopower.com/20171102100522/TEN20/documents/ten20-datasheet.pdf DCDC-Converter TRACO TEN10-xxxx single output POE DCDC-Converter, 60W POE, Silvertel, pitch 2.54mm, package size 11.5x8.5x17.5mm^3, https://www.recom-power.com/pdf/Innoline/R-78HBxx-0.5_L.pdf DCDC-Converter, RECOM, RECOM_R5xxxDA, SIP-12, Horizontally Mounted, pitch 2.54mm, size 5.54x6.5mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00023_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00295, 10 pins, pitch 3.5mm, size 42.7x7mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00056_DB_EN.pdf, script-generated with .

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