A-190-8 USB/Midi-to-Sync Interface
Vorankündigung / preliminary
Prototype 1
 

Module A-190-8 is a Midi/USB to Sync interface. The main application of the module is the control of clocked A-100 modules like sequencers (A-155),  sequencer controllers (A-154), trigger divider (A-160 or A-163), trigger sequencer (A-161) and similar units. It may be used also to reset or sync LFOs (e.g. A-145, A-147, A-143-4) or to trigger envelope generators (A-140, A-141, A-143-1, A-143-2) with a fixed clock rate.

These are the most important features of the module:

  • Midi input (recognizes only Midi realtime messages clock, start, stop and continue)
  • USB input for Midi via USB
  • Clock outputs:
    • 96: outputs the Midi clock 1:1 (96 pulses per measure/ppm or 24 pulses per quarter note/ppq)
    • 32: outputs the Midi clock divided by 3 (32 pulses per measure/ppm or 8 pulses per quarter note/ppq)
    • 16: outputs the Midi clock divided by 6 (16 pulses per measure/ppm or 4 pulses per quarter note/ppq)
    • 8: outputs the Midi clock divided by 12 (8 pulses per measure/ppm or 2 pulses per quarter note/ppq)
    • 1: outputs a pulse at the start of each measure
    • Start: outputs a pulse at each Midi Start or Continue message
    • Stop: outputs a pulse at each Midi Stop message
    • Reset: outputs a pulse at each Midi Start message that follows a Midi Stop message
    • Start/Stop (normal): turns to high at each Midi Start or Continue message, turns to low at each Midi Stop message
    • Start/Stop (inverse): same as above but inverted polarity
  • LED displays for clock 16, "1" and start/stop
  • output voltages can be selected between +5V and +12V by means of an internal jumper
  • firmware updates via USB (provided that there will be updates available)
Prototype 2

This is the second version of the planned module based on the discussion in the A-100 Yahoo group http://groups.yahoo.com/group/doepfer_a100.

Compared to the first version the WAIT function input has been added. Whenever the Wait button is operated or a positive voltage is applied to the Wait input the module waits for the next measure start until the clock signals are generated. Because two output sockets fall away the Start/Stop and the inverted Start/Stop outputs have been removed. Within the A-100 these signals are not required. An internal jumper is used to define if the Start output generates only a short pulse as soon as a Midi start message is received or if it remains in the high state until a Midi stop signal is received. To control the sequencer modules A-155 or A-154 both versions will work because only the rising edge of the start signal is used. To control DIN SYNC equipment the "long" version has to be chosen (i.e. the signal remains high until a stop is recognized). If the inverted version of a signal is required the trigger modifier A-165 may be used.

These are the most important features of this version of the module:

  • Midi input (recognizes only Midi realtime messages clock, start, stop and continue)
  • USB input for Midi via USB
  • Clock outputs:
    • 96: outputs the Midi clock 1:1 (96 pulses per measure/ppm or 24 pulses per quarter note/ppq)
    • 32: outputs the Midi clock divided by 3 (32 pulses per measure/ppm or 8 pulses per quarter note/ppq)
    • 16: outputs the Midi clock divided by 6 (16 pulses per measure/ppm or 4 pulses per quarter note/ppq)
    • 8: outputs the Midi clock divided by 12 (8 pulses per measure/ppm or 2 pulses per quarter note/ppq)
    • 1: outputs a pulse at the start of each measure
    • Start: outputs a pulse at each Midi Start or Continue message or generates a gate signal that remains in the high state until a Midi Stop message occurs (selectable via jumper)
    • Stop: outputs a pulse at each Midi Stop message
    • Reset: outputs a pulse at each Midi Start message that follows a Midi Stop message
    • Wait button
    • Wait control input, can be selected by means of a jumper between Gate function or Switch function: in Gate mode the positive edge of a gate signal is used to init the Wait state, in Switch mode an external switch that connects to GND is used to init the Wait state (equivalent to Switch-Trigger)
  • LED displays for clock, "1" and start (display of Start depends upon the chosen Start mode, see above)
  • output voltages can be selected between +5V and +12V by means of an internal jumper (for DIN Sync applications +5V has to be used !) 
  • firmware updates via USB (provided that there will be updates available) 

We cannot yet specify a definite release date but hope that it will be available about summer 2013.
But this release date is still without obligation !
Breite/Width: 6 TE / 6 HP / 30.0 mm
Tiefe/Depth: ? mm (gemessen an Rückseite der Frontplatte / measured from the rear side of the front panel)
Strombedarf/Current: ? mA
Preis / Price: ~ Euro 120.00 
Liefertermin / date of delivery ca. Sommer 2013 / summer 2013
All features, specifications, prices, date of delivery are still without obligation
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