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BackV1 and v2
Added schmancy pcb for v2 front panel b77534e3fc83cf3f21d8c938a2ebb93ca539acd3 updated README.md 3d0ca7fdf6e2ad8d7864221e585c668e46544055 Update README.md 83b013c3637bfb179ad62b90a6c8b2f5fb547c8c Update README.md Update README.md 3d0ca7fdf6e2ad8d7864221e585c668e46544055 Update README.md Don't put R8 so close to R26 D36/R47 too close - Clock Out - 1K to U3-7 Feed of " /arrasta" 77735c00cc3285131373f5cfc61b82eab5963d12 Update README.md * [Schematic](Docs/precadsr.pdf) * PCB layout: make power connection traces larger; MK uses (and runs about $100 on ebay); Korg lists Trade-Up Music as a full bridge rectifier; could use fewer caps that way main MK_SEQ/Panels/10_step_seq.scad 387 lines // PWM duty // pots (all p160s): font_for_label = "Futura XBlk BT:style=Extra Black") { // slightly complicated; the link is to say, a work based on http://www.latticesemi.com/view_document?document_id=213 BGA 0.8mm 9mm 121 BGA-132 11x17 12x18mm 1.0pitch Altera BGA-144 M144 MBGA Altera BGA-153 M153 MBGA Altera VBGA V81 BGA-81 Altera BGA-100 M100 MBGA 121-ball, 0.8mm BGA (based on http://www.latticesemi.com/view_document?document_id=213 BGA 0.8mm 9mm 121 BGA-132 11x17 12x18mm 1.0pitch Altera BGA-144 M144 MBGA Altera BGA-153 M153 MBGA Altera BGA-153 M153 MBGA Altera BGA-153 M153 MBGA Altera UBGA U324 BGA-324 BGA-624, 25x25 grid, 21x21mm package, pitch 0.4mm; see section 7.1 of http://www.st.com/resource/en/datasheet/DM00282249.pdf WLCSP-90, 10x9 raster, 4.223x3.969mm package, pitch 0.8mm; https://www.nxp.com/docs/en/package-information/SOT1529-1.pdf Altera BGA-672 F672 FBGA WLP-15, 3x5 raster, 2.28x3.092mm package, pitch 0.4mm; see section 7.4 of http://www.st.com/resource/en/datasheet/DM00366448.pdf WLCSP-168, 12x14 raster, 4.891x5.692mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32f051t8.pdf UFBGA-100, 12x12 raster, 5.24x5.24mm package, pitch 0.4mm; see section 6.1 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf WLCSP-64, 8x8 raster, 3.141x3.127mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32l152zc.pdf UFBGA 132 Pins, 0.5mm Pitch, S-PVSON-N10, DRC, http://www.ti.com/lit/ds/symlink/tps61201.pdf 3x3mm Body, 0.65mm Pitch, S-PVSON-N8, http://www.ti.com/lit/ds/symlink/opa2333.pdf 3x3mm Body, 0.5mm Pitch, https://www.st.com/resource/en/datasheet/stm32g473pb.pdf ST UFBGA-129, 7.0x7.0mm, 129 Ball, 13x13 Layout, 0.5mm Pitch, https://www.st.com/resource/en/datasheet/stm32wb55vc.pdf Texas Instruments HSOP 9, 1.27mm pitch, 4.0mm pin length, double rows Through hole angled socket strip, 2x28, 2.54mm pitch, 8.51mm socket length, single row Through hole Samtec HPM power header series 11.94mm post length THT 1x08 2.00mm single row (from Kicad 4.0.7), script generated Through hole pin header THT 2x06 2.00mm double row Through hole angled pin header THT 2x20 2.54mm double row Through hole angled pin header THT 2x24 2.00mm double row Through hole straight pin header, 1x26, 2.00mm pitch, 6.35mm socket.- DirectFET MD MOSFET Infineon DirectFET.
- Connector, M20-89005xx, 5 Pins per row (https://www.hirose.com/product/document?clcode=CL0537-0694-9-81&productname=DF12C(3.0)-50DS-0.5V(81)&series=DF12&documenttype=2DDrawing&lang=en&documentid=0000994748), generated.