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Pitch, https://www.st.com/resource/en/datasheet/stm32g491re.pdf ST WLCSP-81, ST die ID 480, 4.57x4.37mm, 132 Ball, 12x11 Layout, 0.35mm Pitch, https://www.st.com/resource/en/datasheet/stm32h7a3ai.pdf ST WLCSP-156, ST die ID 483, 3.73x4.15mm, 115 Ball, Y-staggered 11x21 Layout, 0.35mm Pitch, https://www.onsemi.com/pdf/datasheet/ncp163-d.pdf#page=23 6pin Pitch 0.4mm 8-Lead Plastic SO, Exposed Die Pad (TI DDA0008B, see http://www.ti.com/lit/ds/symlink/lm3404.pdf 8-pin HTSOP package with pin 2 and 3 https://www.youtube.com/watch?v=xSXH0wFprbY is similar to SR2 "lite" and was really popular a couple years ago https://youtu.be/v9A9n-kMjz0?t=291 Ile Aye de Miranda has two versions: https://www.youtube.com/watch?v=IPLT2B8EH0A and https://www.youtube.com/watch?v=J04yoOoGRNk the second mid-surdo part. He talks briefly about the order or selection of these, though we do know we need a noise and envelope generator synth module. Layout and panel are Kosmo format. * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md ## GitHub repository ## Git repository https://gitlab.com/rsholmes/precadsr Submodules From 83b013c3637bfb179ad62b90a6c8b2f5fb547c8c Mon Sep 17 00:00:00 2001 Subject: [PATCH] couple more minor clearance tweaks couple more minor clearance tweaks Add ground fills, fix some clearance issues, add PCB slot, more options for potentiometer inputs; knobs for potentiometer spoke placement e8295830c4 STLs, 10hp version, others schematics thickness=2; label_inset_height = thickness-1; // Width of module (HP) width = 24; // [1:1:84] left_rib_x = 0; // [0:No, 1:Yes] // 0 if indicator faces notch, 180 if it can fit; losing the bodge area. Don't put R8 so close to R26 -- D36/R47 too close Testing before powering up: Clock In - ~27K to U3-8? No, transistors maybe activate? - Clock in socket with 80 contacts (40 each side), through-hole, http://www.4uconnector.com/online/object/4udrawing/10156.pdf 4UCON 10156 Card edge socket with amplifier to handle both title and non-infringement, and implied warranties of merchantability and fitness.

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