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LFO. Photos Build notes GitHub repository https://github.com/holmesrichards/precadsr Submodules git clone git@gitlab.com:rsholmes/precadsr.git git submodule update Find and replace last few thin traces, fix teardrops and gnd fill f63cfba954 Embiggen traces, add teardrops updated C5 footprint & tracing; schematic annotation updates the potentiometer pads and thermal vias; see figure 8.2 of https://www.silabs.com/documents/public/data-sheets/efm8bb1-datasheet.pdf 20-Lead Plastic Thin Quad Flatpack (MW) - 10x10x1.0 mm Body [VDFN] (see Microchip Packaging Specification 00000049BS.pdf DCB Package 8-Lead Plastic Dual Flat, No Lead Package, 1.2x1.8x1.55 mm Body [SOIC], pin 7 removed (Microchip Packaging Specification 00000049BS.pdf DFN package size 0604 3 pins LED, diameter 5.0mm, 2 pins, 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, hole diameter 0.7mm THT rectangular pad as test Point, diameter 4.0mm 2 pins Red 5381 Series LED Amber 5381 Series LED Green 5381 Series LED Amber 5381 Series LED A20 Olinuxino LIME2, 1.2GHz, 512-1024MB RAM, Micro-SD, NAND or eMMC, 1000Mbit Ethernet A20 Olimex Olinuxino LIME2 development board Common footprint for ECP5 FPGAs, 27.0x27.0mm, 756 Ball, 32x32 Layout, 0.8mm Pitch, https://www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/4gb_ddr3l.pdf#page=26 ST uTFBGA-36, 0.25mm pad, 3.6x3.6mm, 36 Ball, 6x6 Layout, 0.5mm Pitch, https://www.st.com/resource/en/datasheet/stm32mp151a.pdf ST TFBGA-225, 13.0x13.0mm, 225 Ball, 15x15 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 CS324 CSG324 BGA 324 0.8 CSGA324 Artix-7, Kintex-7 and Zynq-7000 BGA, 26x26 grid, 27x27mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=289, NSMD pad definition Appendix A Zynq-7000 BGA, 26x26 grid, 27x27mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=278, https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=92, NSMD pad definition (http://www.ti.com/lit/ds/symlink/txs0104e.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments DSBGA BGA YFF S-XBGA-N5 Texas Instruments, DSBGA, 0.9x1.4mm, 6 bump 2x3 (perimeter) array, NSMD pad definition Appendix A Zynq-7000 BGA, 22x22 grid, 19x19mm package, 0.8mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=78, NSMD pad definition Appendix A Zynq-7000 BGA, 26x26 grid, 27x27mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=297, NSMD pad definition Appendix A BGA 1156 1 FF1156 FFG1156 FFV1156 Virtex-7 BGA, 42x42 grid, 45x45mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=264, NSMD pad definition Appendix A BGA 484 1 FG484 FGG484 Artix-7 BGA, 18x18 grid, 15x15mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=265, NSMD pad definition Appendix A BGA 256.

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