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X 3mm MLF - 3x3x0.85 mm Body (http://ww1.microchip.com/downloads/en/DeviceDoc/20005010F.pdf 8-Lead Plastic Dual Flat, No Lead Package (MC) - 2x3x0.9 mm Body [QFN]; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f103tb.pdf LFBGA-144, 12x12 raster, 5.24x5.24mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32f446ze.pdf WLCSP-81, 9x9 raster, 4.4084x3.7594mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32l151cc.pdf WLCSP-64, 8x8 raster, 3.141x3.127mm package, pitch 0.4mm pad, based on https://www.schmitzbits.de/ms20.html which is good practice, but ho-dang what a mess From 7022ad9ddb43c592e11528a5ae21edf443c088e4 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Finished PCB, passes all passable DRCs created pull request 'Fix rail clearance issues, make all power traces large "rules": { PCB initial layout, no traces "copper_text_size_h": 1.5, "copper_text_size_v": 1.5, "copper_text_thickness": 0.3, PCB initial layout, no traces "silk_line_width": 0.15, "silk_text_italic": false, "silk_text_size_h": 1.0, "silk_text_size_v": 1.0, PCB initial layout, no traces "silk_text_size_h": 1.0, "silk_text_size_v": 1.0, "silk_text_thickness": 0.15, "silk_text_upright": false, "zones": { "min_clearance": 0.5 } }, updates to rev 2 beta master Binary files /dev/null and b/Docs/precadsr_layout_front.pdf differ Tayda 6096366E - 2 momentary pushbutton switches - 1 rotary switch, 5+ positions 10 LEDs - 6 sockets Potentiometers: One potentiometer for internal clock rate. - One potentiometer for internal clock rate. - One multi-pole rotary switch - 7mm, with 3-4mm extra space available mini toggle pushbuttons: ample space above 11.75mm (existing 1p12t rotaries, use 11.25mm holes to PCB edge 9.12mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 25-pin D-Sub connector straight vertical THT male pitch 2.77x2.84mm pin-PCB-offset 7.699999999999999mm mounting-holes-distance 33.3mm mounting-hole-offset 33.3mm 26-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.29x2.54mm, pin-PCB-offset 9.4mm, see http://docs-europe.electrocomponents.com/webdocs/1585/0900766b81585df2.pdf 44-pin D-Sub connector, solder-cups edge-mounted, male, x-pin-pitch 2.77mm, distance of mounting holes 63.5mm, distance of mounting holes 47.1mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector, solder-cups edge-mounted, female, x-pin-pitch 2.77mm, distance of mounting holes to PCB edge 4.9399999999999995mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector edge mount solder cup female x-pin-pitch 2.77mm mounting holes 47.1mm, distance of mounting holes to PCB for holding three chips (two 74s, one 72) Noise MK's S&H not strictly.

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