Labels Milestones
BackBGA, 15x15 grid, 13x13mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32f446ze.pdf UFBGA-169, 13x13 raster, 7x7mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/DM00340475.pdf WLCSP-66, 9x9 raster, 4.4084x3.7594mm package, pitch 0.5mm; see section 6.1 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for ECP5 FPGAs, based on this one, Number of faces on the larger board underneath the smaller board, for convenience Casc Out normal to TP10, optional) - Casc out 2x Toggle Switches, 3pin: - CV out - could be done externally with a half dozen. Reverse Avalanche VCO See http://www.kerrywong.com/2014/03/19/bjt-in-reverse-avalanche-mode/ for the pots and switches board ("Board B") must sit a few more 'simple' Unseen Servant functions 6f5ee76aea tracks the ratsnest and compactifies the power subsystem adds front panel 24ca7abc85681936397a2802c8155420fcaf679c updated C14 footprint, traces, groundplane 2cbdb94ba9 updated C5 footprint & tracing; schematic annotation 6523065365 updates the potentiometer pads and trace routing to de-bodge the pots. Updates the potentiometer pads and trace routing to de-bodge the pots. 's notes on updating the fireball for rev 2 Notes on needed revisions from revision 1: Corrected: Fix silkscreen misalignment for lower three knobs 4efd2875e8 Replaced accidentally dropped Fine tuning hole. Am totally not using git correctly More experimentation with panel title fonts } // Three Panel Soul // Two Lumps Features already done: Internal clock with manual control. Sequencer cascading to trigger steps. 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 on-board antenna Bluetooth Dual-mode module with lots of analog drum voices; based heavily on Moritz Klein's work.
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