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wcore_usb [2017/09/09 10:47]
latigid_on [Schematic]
wcore_usb [2018/12/18 09:36] (current)
latigid_on [BOM v1.0]
Line 18: Line 18:
 The left-hand side connects to the 3.5mm socket. The idea is to use the tip of a stereo jack as an interface to a gate (i.e. from a modular synth). As the DIN pins normally expect negative-going signals, the classic S-trig converter is applied: The left-hand side connects to the 3.5mm socket. The idea is to use the tip of a stereo jack as an interface to a gate (i.e. from a modular synth). As the DIN pins normally expect negative-going signals, the classic S-trig converter is applied:
  
-{{::​wcore:​usb:​strig.png?​nolink&​200|}}+{{::​wcore:​usb:​strig.png?​nolink&​400|}}
  
 To use the socket for another purpose (audio input or output?), feel free to omit the diode and transistor, and to bridge the collector and base pins. To use the socket for another purpose (audio input or output?), feel free to omit the diode and transistor, and to bridge the collector and base pins.
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 ===== BOM v1.0 ===== ===== BOM v1.0 =====
 +
 +**Please find the current BOM on [[http://​midiphy.com]]. The table below is depreciated and will not be updated.**
  
 ^Type     ​^Qty ^Value  ​  ​^Package ^Parts^Mouser^Reichelt^Conrad^Other^Notes^ ^Type     ​^Qty ^Value  ​  ​^Package ^Parts^Mouser^Reichelt^Conrad^Other^Notes^
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 ===== Assembly ===== ===== Assembly =====
  
 +Solder the SMT parts first. Ensure the TVS diode is aligned with the larger pin on the larger pad and that the wide edge of the body fits between the silkscreen indicators:
  
 +{{:​wcore:​usb:​tvs.png?​nolink&​200|{{:​wcore:​usb:​tvs.png?​nolink&​400|}} \\
 +//Note this is the board viewed from the bottom; the larger pin is on the bottom-left.//​
  
 +To have a through-hole USB A socket, the pins are quite close together. Be careful to avoid bridges when soldering and **test with a multimeter to ensure no adjacent pins are connected afterwards!**
  
 +It goes without saying, but ensure none of the metal parts are touching (e.g. the outside of the USB sockets with J7, the 1N4148 diode with the mounting brackets etc.).
  
  
wcore_usb.1504954032.txt.gz ยท Last modified: 2017/09/09 10:47 by latigid_on