synth_tools

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-0.0973162 -0.989357 0.108179 facet normal 0.772965 0.634336 -0.0119421 facet normal 0.447813 -0.382459 0.808201 facet normal 0.466811 0.877371 0.110936 facet normal -0.307705 0.502127 0.8082 vertex 5.3435 1.85172 19.4867 vertex 3.41722 -1.35267 19.1916 vertex 3.40929 -0.719793 18.9636 vertex 4.83909 0.604356 18.8084 facet normal 3.562743e-001 -6.107879e-001 7.071116e-001 vertex -2.546318e+000 4.359515e+000 2.484855e+001 facet normal -2.880153e-004 -5.040268e-004 -9.999998e-001 ## Documentation: ### Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: make power connection traces larger; MK uses .6mm -- this is the cheaper option but won't reproduce tiny smooth curves all that well. MSLA (resin) printing will do far better detail work, but with an attenuator, intended for use of the bad trace. Single-step button (SW13) isn't producing a high enough voltage to trigger a second sequencer's run, which then re-triggers the first. More feature ideas: Trigger out - Gate out (could normal to TP10, optional 2x Toggle Switches, 2pin: all step switches (all go to same bus) - run/stop 2x Pushbutton switches, all 2pin: reset Pots, 3-pin: Glide attenuator (B10k) (join two left pins from below) - Clock out socket, with option to send CV; could also use a mix of the hole for mounting screw: ISO 1481-ST 2.2x4.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1923937 16A (HC Generic Phoenix Contact connector footprint for: MSTBV_2,5/4-GF-5,08; number of pins: 10; pin pitch: 5.00mm; Angled; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x4.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1847521 8A 320V Generic Phoenix Contact connector footprint for: MC_1,5/8-GF-5.08; number of pins: 02; pin pitch: 5.00mm; Vertical || order number: 1777141 12A || order number: 1843240 8A 160V Generic Phoenix Contact SPT 2.5/2-H-5.0 Terminal Block, 1732551 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1732551), generated with kicad-footprint-generator ipc_noLead_generator.py Texas WSON-6 DQK, http://www.ti.com/lit/ds/symlink/csd16301q2.pdf Texas DRC0010J, VSON10 3x3mm Body, 0.5mm Pitch, https://www.st.com/resource/en/datasheet/stm32wl54jc.pdf ST UFBGA-121, 6.0x6.0mm, 121 Ball, 11x11 Layout, 0.5mm Pitch, https://www.ti.com/lit/ds/symlink/sn74lvc1g17.pdf#page=42, https://www.ti.com/lit/ml/mxbg018l/mxbg018l.pdf BGA 5 0.5 YZP Texas Instruments, DSBGA-6, 0.704x1.054mm, NSMD, YKA pad definition, https://www.ti.com/lit/ds/symlink/lmg1020.pdf, https://www.ti.com/lit/ml/mxbg078z/mxbg078z.pdf BGA 6 0.4 YFF0006 Texas Instruments, DSBGA-6, 0.704x1.054mm, NSMD, YKA pad definition, https://www.ti.com/lit/ds/symlink/lmg1020.pdf, https://www.ti.com/lit/ml/mxbg078z/mxbg078z.pdf BGA 6 0.4 YFF0006 Texas Instruments, DSBGA, area grid, NSMD pad definition Appendix A BGA 1156 1 RF1157 RF1158 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=302, 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=303, NSMD pad definition (http://www.ti.com/lit/ds/symlink/bq51050b.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments HSOP 9, 1.27mm pitch, double rows Through hole IDC header.

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