synth_tools

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Replace C10 with 100K resistor, and bridge out R44 with a capacitor / resistor pair, see Fireball's hard sync to schematic, laid out PCB with exploratory 8hp layout 0d3d72c49e606725216a5a9a4217e6c039d5a574 2bd01a1ff2d30ca3cff647bbf3b80645437cc07c Add schematic, start on PCB choices could also do all-different colors, but unfortunately Mouser only has A1Ms in orange. *** Expensive, about $3 in parts (no ICs), and a "work based on https://www.analog.com/media/en/technical-documentation/data-sheets/8063fa.pdf Altera BGA-36 V36 VBGA BGA-48 - pitch 0.8 mm Highspeed card edge connector for 1.6mm PCB's with 20 contacts (polarized Highspeed card edge connector for 1.6mm PCB's with 70 contacts (polarized conn samtec card-edge socket high-speed 0.8 mm Highspeed card edge connector for 1.6mm PCB's with 05 contacts (polarized conn samtec card-edge socket high-speed 0.8 mm BGA-64, 10x10 raster, 8x8mm package, 0.5mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=260, NSMD pad definition Appendix A BGA 484 0.8 RS484 Artix-7 BGA, 22x22 grid, 23x23mm 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, DSBGA, 1.5195x1.5195x0.600mm, 8 ball 3x3 area grid, YBJ0008 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, 1.36x1.86mm, 10 bump 3x4 (perimeter) array, NSMD pad definition Appendix A BGA 484 0.8 SBG485 SBV485 LFCSP, exposed pad, thermal vias, DDA0008J (http://www.ti.com/lit/ds/symlink/tps5430.pdf 8-pin HTSOP package with missing pin 7 removed (Microchip Packaging Specification 00000049BS.pdf QFN Microchip 8E 16 QFN, 44 Pin, dual row female, vertical entry, PN:G125-FVX1005L0X Harwin Gecko Connector, 6 pins, pitch 5.08mm, hole diameter 1.3mm, length 11.3mm, width 2.8mm Capacitor C, Disc series, Radial, pin pitch=15.24*22.86mm^2, , length*width=38.099999999999994*20.32mm^2, Bourns, 8100, http://datasheet.octopart.com/8120-RC-Bourns-datasheet-10228452.pdf L_CommonMode_Toroid Vertical series Radial pin pitch 20mm length 12mm diameter 10.5mm width 5.0mm Capacitor C, Disc series, Radial, pin pitch=6.35*6.35mm^2, , length*width=9.14*9.14mm^2, Pulse, LP-25, http://datasheet.octopart.com/PE-54044NL-Pulse-datasheet-5313493.pdf Inductor Radial series Radial pin pitch 10.00mm diameter 14.2mm Neosid SD14 Inductor, Radial series, Radial, pin pitch=10.00mm, , length*width=11.5*2mm^2, Capacitor, https://en.tdk.eu/inf/20/20/db/fc_2009/MKT_B32560_564.pdf C Rect series Radial pin pitch 7.62mm length 3.04mm diameter 1.6mm wire loop as test point, loop diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00298_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00292 pitch 5.08mm length 10mm width 3.0mm solder Pin_ diameter 1.3mm.

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