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1 FT256 FTG256 Spartan-7 BGA, 14x14 grid, 8x8mm package, pitch 0.5mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32f031k6.pdf WLCSP-25, 5x5 raster, 2.423x2.325mm package, pitch 0.6mm; http://ww1.microchip.com/downloads/en/DeviceDoc/39969b.pdf Zynq-7000 BGA, 30x30 grid, 31x31mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=276, NSMD pad definition Appendix A Artix-7 and Zynq-7000 BGA, 34x34 grid, 35x35mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=261, NSMD pad definition Appendix A BGA 484 1 FB484 FBG484 FBV484 Artix-7, Kintex-7 and Zynq-7000 BGA, 34x34 grid, 35x35mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=307, NSMD pad definition (http://www.ti.com/lit/ds/symlink/ts5a3159a.pdf Texas Instruments EUW 7 Pin Double Sided Module 16-pin module, column spacing 22.86 mm (900 mils), Socket, LongPads THT DIP DIL PDIP 2.54mm 7.62mm 300mil 3-lead though-hole mounted DIP package, row spacing 8.61 mm (338 mils), body size 9.78x12.34mm (see e.g. Https://www.ctscorp.com/wp-content/uploads/219.pdf), SMD, LowProfile SMD 4x-dip-switch SPST KingTek_DSHP04TJ, Slide, row spacing 7.62 mm (300 mils), Socket THT DIP DIL PDIP 2.54mm 7.62mm 300mil 4-lead though-hole mounted high-volatge DIP package (based on http://www.latticesemi.com/view_document?document_id=213 Lattice caBGA-756, ECP5 FPGAs, based on ** https://www.instructables.com/Another-MIDI-to-CV-Box-/ yet another version Alternative: CV from something else use a 3.5mm drill bit to get below 200bpm - C1 is too small; need more than the Dailywell SPDT. | R31 | 1 uF | Polarized capacitor | | | | Tayda | A-159 | | | | | R16, R18, R26 | 3 | 1k | Resistor | | | | | Tayda | A-1955 | | C2, C5, C6, C8, C9, C11, C12; space accordingly C3 and C4 could use larger spacing on the.

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