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BackHttps://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=265, NSMD pad definition Appendix A BGA 900 1 FB900 FBG900 FBV900 Kintex-7 and Zynq-7000 BGA, 22x22 grid, 23x23mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=95, NSMD pad definition Appendix A BGA 1760 1 FF1761 FFG1761 Virtex-7 BGA, 42x42 grid, 42.5x42.5mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=306, NSMD pad definition (http://www.ti.com/lit/ds/symlink/ts5a3159a.pdf Texas Instruments (see http://www.ti.com/lit/ds/symlink/lm5118.pdf HSOIC, 8 Pin (https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BME680-DS001-00.pdf#page=44), generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55935-0410, with PCB trace layout created pull request 'More schematics' (#3) from schematic into main Merge pull request 'new_footprints' (#5) from new_footprints into main afea9d5a2cf23e2a33a2927086270d4d602f5a2b Final revision; added custom DRC as project file c4e1c30b9b Add jlc constraints DRC; replace order number text Add jlc constraints DRC; replace order number text 613d1b6f7ef8de710893bbeb40d56c8d26d50247 @circuitlocution.com created pull request synth_mages/MK_VCO#4 24955050f1 Merge pull request 'new_footprints' (#5) from new_footprints into main Reviewed-on: https://gitea.circuitlocution.com/synth_mages/MK_VCO/pulls/2 From 972d8b1e0797912e848110b19e1af10ed411bbbb Mon Sep 17 00:00:00 2001 Subject: [PATCH] Footprint selection, some PCB layout choices From c6741b48f0ef8a6e69ecbca1a47bc4f4b481e2a3 Mon Sep 17 00:00:00 2001 Subject: [PATCH 09/13] Notes from MK's PCB livestream Footprints: - avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals 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 7.5mm holes, not 6mm - alpha pots - 9.8mm, +2mm - rotary - 11.5mm, +3.5mm -- biggest by far, maybe 12.6mm? SR2511 series are 11.43? Maybe more? Distance between pcb and front panel, steel retention lug, horizontal PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch 1.25u plate Cherry MX keyswitch, 1.50u, PCB mount, https://www.neutrik.com/en/product/nc3mamh-ph speakON Combo, 2 pole combination of speakON socket and 6.35mm (1/4in) switching stereo jack without switching contact, vertical PCB mount, https://www.neutrik.com/en/product/nc3fbh2 B Series, 3 pole female XLR receptacle, grounding: mating connector shell to pin1 and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc4mbh B Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/ncj10fi-v-0 Combo I series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, vertical PCB contacts (4 switching contacts), https://www.neutrik.com/en/product/nl4md-v-s speakON Chassis Connectors, 2 pole chassis connector, black D-size flange, self tapping screw holes (A-screw), vertical PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc3fbv2-da B Series, 3 pole female XLR receptacle, grounding: without ground/shell contact, vertical PCB contacts (4 switching contacts), https://www.neutrik.com/en/product/nl4md-v-s speakON Chassis Connectors, 4.
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