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I2S Microphone: https://www.knowles.com/subdepartment/dpt-microphones/subdpt-sisonic-surface-mount-mems microphone MEMS I2S ICS-43434 TDK InvenSense MEMS I2S Microphone: https://www.knowles.com/subdepartment/dpt-microphones/subdpt-sisonic-surface-mount-mems microphone MEMS I2S SPH0645LM4H Knowles Sensirion, SHT40, SHT41, SHT45, DFN, 4 Pin (https://toshiba.semicon-storage.com/info/docget.jsp?did=12884&prodName=TLP291), generated with kicad-footprint-generator Molex PicoBlade series connector, LY20-22P-DLT1, 11 Circuits (https://www.molex.com/pdm_docs/sd/2005280110_sd.pdf), generated with kicad-footprint-generator Hirose DF11 through hole, DF11-4DP-2DSA, 2 Pins per row (http://www.molex.com/pdm_docs/sd/439151404_sd.pdf), generated with kicad-footprint-generator Mounting Hardware, inside blind hole M1.6, height 5, Wuerth electronics 9776080960 (https://katalog.we-online.com/em/datasheet/9776080960.pdf), generated with StandardBox.py) (Murata NCS1SxxxxSC https://power.murata.com/data/power/ncl/kdc_ncs1.pdf (Script generated with StandardBox.py) (http://www.altechcorp.com/PDFS/PCBMETRC.PDF Altech AK300 terminal block, pitch 5.0mm, 45 degree angled, see http://www.mouser.com/ds/2/16/PCBMETRC-24178.pdf Altech AK300 terminal block, pitch 5.08mm, revamped version of the 3-roll in MS3? TBD. Note: Mid-surdos start with MS3. After the first run PCBs as 1 nF. It should be 10 nF. Documentation ## Mechanical assembly Documentation # ---> KiCad # For PCBs designed using KiCad: https://www.kicad.org/ # Format documentation: http://kicad-pcb.org/help/file-formats/ # KiCad backups folders temp_* # Compressed files *.zip # Mac stuff *.DS_Store # Emacs temps *~ \#* # LTSpice Simulations/*.log Simulations/*.raw Simulations/*.txt Copper Layer Stackup: ============================================================= L1 : F.Cu front L2 : B.Cu back Drill file 'precadsr-panel.drl' contains T1 3.200mm 0.1260" (4 holes) T5 15.200mm 0.5984.

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