3
1
Back

Another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another fairly simple one, using Arduino (nano or uno) + MCP4725 (DAC). ** https://hkadesign.org.uk/monotronkb.html for yet another version Alternative: CV from something else VCF MK's Diode Ladder VCF Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on http://www.latticesemi.com/view_document?document_id=213 Lattice caBGA-756, ECP5 FPGAs, 27.0x27.0mm, 756 Ball, 32x32 Layout, 0.8mm Pitch, https://www.st.com/resource/en/datasheet/stm32h7b3ri.pdf ST TFBGA-257, 10.0x10.0mm, 257 Ball, 19x19 Layout, 0.8mm Pitch, https://www.infineon.com/cms/en/product/packages/PG-LFBGA/PG-LFBGA-292-11/ LFBGA-100, 10x10 raster, 4.775x5.041mm package, pitch 0.65mm; see section 6.6 of http://www.st.com/resource/en/datasheet/DM00273119.pdf X1-WLB0909, 0.89x0.89mm, 4 Ball, 2x2 Layout, 0.35mm Pitch, https://www.st.com/resource/en/datasheet/stm32h7a3ai.pdf ST WLCSP-156, ST die ID 469, 4.02x4.27mm, 81 Ball, 9x9 Layout, 0.4mm Pitch, https://www.nxp.com/docs/en/package-information/SOT1963-1.pdf ST LFBGA-354, 16.0x16.0mm, 354 Ball, 19x19 Layout, 0.5mm Pitch, http://www.ti.com/lit/ds/symlink/tps63000.pdf 3x3mm Body, 0.5mm Pitch, https://www.diodes.com/assets/Datasheets/AP22913.pdf WLCSP-4, 0.64x0.64mm, 4 Ball, 2x2 Layout, 0.5mm Pitch, https://www.st.com/resource/en/datasheet/stm32mp151a.pdf ST LFBGA-448, 18.0x18.0mm, 448 Ball, 22x22 Layout, 0.8mm Pitch, https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-bga/05081600_0_bga49.pdf https://www.analog.com/media/en/technical-documentation/product-information/assembly-considerations-for-umodule-bga-lga-package.pdf BGA 324 0.8 GateMate FPGA Maxim WLP-12, W121H2+1, 2.008x1.608mm, 12 Ball, 4x3 Layout, 0.4mm Pitch, https://www.st.com/resource/en/datasheet/stm32g031y8.pdf ST WLCSP-20, ST die ID 468, 3.15x3.13mm, 49 Ball, 7x7 Layout, 0.8mm Pitch, https://www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/4gb_ddr3l.pdf#page=27 FBGA-96, 14.0x8.0mm, 96 Ball, 9x16 Layout, 0.8mm Pitch, https://www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/4gb_ddr3l.pdf#page=23 FBGA-96, 13.5x7.5mm, 96 Ball, 9x16 Layout, 0.8mm Pitch, https://www.st.com/resource/en/datasheet/stm32mp151a.pdf ST TFBGA-361, 12.0x12.0mm, 361 Ball, 23x23 Layout, 0.5mm Pitch, https://www.st.com/resource/en/datasheet/stulpi01a.pdf TFBGA-64, 8x8 raster, 5x5mm package, pitch 0.5mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32l152zc.pdf WLCSP-64, 8x8 raster, 3.141x3.127mm package, pitch 0.4mm; see section 7.2 of http://www.st.com/resource/en/datasheet/stm32f207vg.pdf VFBGA-49, 7x7, 5x5mm package, pitch 0.8mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32l152zd.pdf WLCSP-64, 8x8 raster, 5x5mm package, pitch 0.5mm; see section 7.1 of http://www.st.com/resource/en/datasheet/DM00282249.pdf WLCSP-90, 10x9 raster, 4.223x3.969mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/DM00257211.pdf WLCSP-64, 8x8 raster, 5x5mm package, pitch 0.65mm UFBGA-32, 6x6, 4x4mm package, pitch 0.4mm; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f411vc.pdf.

New Pull Request