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Back- variable resist +6k between U2-8 and U2-9 Reset Sw - when pressed, short +12V and the MCP4922 DAC (others may work). Probably can build our own based on https://www.analog.com/media/en/technical-documentation/data-sheets/199399fc.pdf TO-92 2-pin variant by Heraeus, drill 0.75mm (see NXP sot054_po.pdf to-92 sc-43 sc-43a sot54 PA33 transistor TO-92 2-pin leads in-line, narrow, oval pads, drill 0.75mm (https://www.diodes.com/assets/Package-Files/TO92S%20(Type%20B).pdf TO-92S_Wide package, drill 0.75mm (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot361-1_po.pdf TSSOP, 28 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-0108.PDF), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-131-02-xxx-DV-BE, 31 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py 20-Lead Frame Chip Scale Package - 4x4x0.9 mm Body [UQFN]; (see Microchip Packaging Specification 00000049BS.pdf MSOP, 12 Pin (https://ww1.microchip.com/downloads/aemDocuments/documents/APID/ProductDocuments/DataSheets/MIC2207-2MHz-3A-PWM-Buck-Regulator-DS20006470A.pdf#page=22), generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55935-1510, with PCB locator, 5 Pins (https://www.molex.com/pdm_docs/sd/026604020_sd.pdf), generated with kicad-footprint-generator PCB Mount Receptacle, Vertical, Board-to-Board, 38 Position, 24.003mm / .64mm [.945in] Centerline, Header Only, Palladium Nickel (https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F5767171%7FB2%7Fpdf%7FEnglish%7FENG_CD_5767171_B2.pdf%7F5767171-1#page=2 Molex Mini-Universal MATE-N-LOK, old mpn/engineering number: 1-770874-x, 2 Pins (http://www.molex.com/pdm_docs/sd/559350210_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py DFN, 6 Pin (https://www.jedec.org/sites/default/files/docs/MO-193D.pdf variant BA), generated with kicad-footprint-generator Harwin Male Horizontal Surface Mount Slide Switch, right-angle, https://www.ckswitches.com/media/1424/pcm.pdf 0 4 2 Button_Switch_SMD SW_SPST_EVQPE1 Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000C374.pdf SMD SMT crystal Abracon ABM10 Abracon Miniature Ceramic Smd Crystal ABM3 http://www.abracon.com/Resonators/abm3.pdf, hand-soldering, 5.0x3.2mm^2 package Fox TXCO temperature compensated oscillator SMD Crystal EuroQuartz MQ series http://cdn-reichelt.de/documents/datenblatt/B400/MQ.pdf, hand-soldering, 7.0x5.0mm^2 package FOX SMD Crystal Oscillator Seiko Epson MC-406 https://support.epson.biz/td/api/doc_check.php?dl=brief_MC-306_en.pdf, 9.6x4.1mm^2 package SMD Crystal EuroQuartz X22 series http://cdn-reichelt.de/documents/datenblatt/B400/DS_X22.pdf, hand-soldering, 2.5x2.0mm^2 package crystal Epson Toyocom TSX-3225 series https://support.epson.biz/td/api/doc_check.php?dl=brief_fa-238v_en.pdf, 3.2x2.5mm^2 package SMD Crystal SERIES SMD2520/4 http://www.newxtal.com/UploadFiles/Images/2012-11-12-09-29-09-776.pdf, 2.5x2.0mm^2 package crystal Epson Toyocom FA-238 series https://support.epson.biz/td/api/doc_check.php?dl=brief_fa-238v_en.pdf, 3.2x2.5mm^2 package SMD Crystal Oscillator Seiko Epson MC-405 https://support.epson.biz/td/api/doc_check.php?dl=brief_MC-306_en.pdf, 9.6x4.1mm^2 package crystal Epson Toyocom TSX-3225 series https://support.epson.biz/td/api/doc_check.php?dl=brief_fa-238v_en.pdf, hand-soldering, 3.2x2.5mm^2.
- 0.195255 -2.81323e-07 vertex 3.42107 -0.0197401.
- Https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=277, https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=296, https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=91, NSMD pad definition Appendix A.