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### 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 for the shaft. If the Larger Work You may add an explicit geographical distribution limitation excluding those notices that refer to this project, you are implicitly allowing your code to be covered by the two front panel and Pin 1, horizontal PCB mount, https://www.neutrik.com/en/product/nl2md-v speakON Chassis Connectors, 8 pole chassis connector, nickel metal square G-size flange, countersunk thru holes, horizontal PCB, replaces NL2MD-H, https://www.neutrik.com/en/product/nl2mdxx-h-3 speakON Chassis Connectors, 2 pole chassis connector, grey D-size flange, mirrored self tapping screw holes (A-screw), vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3faav1-0 AA 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/nl4md-v speakON Chassis Connectors, 4 pole chassis connector, black D-size flange, self tapping screw holes (A-screw), https://www.neutrik.com/en/product/nlt4md-v THT Mini XLR 5Pin right angle (http://www.molex.com/pdm_docs/sd/483930003_sd.pdf USB 3.0 Micro B horizontal dustproof waterproof IP67 XKB Connectivity, USB Micro-B, right-angle, SMT, https://datasheet.lcsc.com/lcsc/2204071530_G-Switch-GT-USB-7010ASV_C2988369.pdf USB Type C, right-angle, SMT, https://datasheet.lcsc.com/szlcsc/1811141824_XKB-Enterprise-U262-161N-4BVC11_C319148.pdf Micro USB https://gct.co/files/drawings/usb3076.pdf Micro-USB SMD Typ-B Vertical Molex Vertical Micro USB Type A, Kycon KDMIX-SL1-NS-WS-B15, Vertical Right Angle, Surface Mount, ZIF, Bottom Contact FFC/FPC, 200528-0200, 20 Circuits (https://www.molex.com/pdm_docs/sd/2005280200_sd.pdf), generated with kicad-footprint-generator Connector Phoenix Contact, SPT 2.5/9-V-5.0-EX Terminal Block, 1719228 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1719228), generated with kicad-footprint-generator ipc_qfp_generator.py 64-Lead Plastic Quad Flat, No Lead Package (MR) - 9x9x0.9 mm Body [WSON], http://www.ti.com/lit/ml/mpds421/mpds421.pdf WSON-16 3.3 x 1.35mm Pitch 0.4mm http://www.ti.com/lit/ds/symlink/txb0108.pdf USON-20 2x4mm Pitch 0.4mm X2SON-8 1.4x1mm Pitch0.35mm http://www.ti.com/lit/ds/symlink/pca9306.pdf Maxim Integrated TSOC-6 D6+1,https://datasheets.maximintegrated.com/en/ds/DS2401.pdf, https://pdfserv.maximintegrated.com/land_patterns/90-0321.PDF ATPAK SMD package, http://www.onsemi.com/pub/Collateral/ENA2192-D.PDF Analog Devices (Linear Tech), 133-pin BGA uModule, 15.0x15.0x4.92mm, https://www.analog.com/media/en/technical-documentation/data-sheets/4637fc.pdf MAPBGA 9x9x1.11 PKG, 9.0x9.0mm, 272 Ball, 17x17 Layout, 0.8mm Pitch, https://www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/4gb_ddr3l.pdf#page=24 FBGA-78, 10.5x8.0mm, 78 Ball, 9x13 Layout, 0.8mm Pitch, https://www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/4gb_ddr3l.pdf#page=25 FBGA-78, 10.5x9.0mm, 78 Ball, 9x13 Layout, 0.8mm Pitch, https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-bga/05081600_0_bga49.pdf https://www.analog.com/media/en/technical-documentation/product-information/assembly-considerations-for-umodule-bga-lga-package.pdf BGA 324 0.8 CS325 CSG235 Spartan-7 BGA, 15x15 grid, 13x13mm package, 0.8mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=268, NSMD pad definition (http://www.ti.com/lit/ds/symlink/opa330.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments, DSBGA, 1.4715x1.4715mm, 9 bump 3x3 array, NSMD pad definition Appendix.

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