4ms SCM Plus [SCM+]

 The SCM Plus is a clock multiplier with eight gate outputs and complex beat manipulation features. It combines the classic Shuffling Clock Multiplier (SCM) and SCM Breakout (SCMBO) into a single module using higher precision hardware than its predecessors.

SCM Plus User Manual v1.0

Features

• Eight gate outputs, each multiplying up to x32
• Five slipped/shuffled/skipped clock outputs and three steady clock outputs
• Five knobs with CV jacks:
• Rotate shifts multiply-by amount
• Slip causes particular beats to land ahead in time
• Shuffle selects which beats are affected by Slip
• Skip omits certain beats in a pattern
• Pulse Width controls width of output pulses
• Resync trigger input resets the slip/shuffle/skip counters
• 4x Fast button and gate jack increase multiply-by amount by a factor of four
• Mute button and gate jack stop all outputs
• Save Clock feature restores last saved tempo when powering up
• Clock Bus jumper allows module to receive tempo from other modules over the power bus
• Free Run jumper allows unit to operate without an external clock
• LED dimmer trimpot allows for custom LED brightness
• 12HP Eurorack module

Specs

• Electrical and Mechanical Specifications
  • 12HP Eurorack format module
  • 0.95” (24mm) maximum depth (includes power cable)
  • 16-pin Eurorack power header
• Power consumption
  • +12V: 52mA max
  • -12V: 15mA
• Clock Input
  • 2.5V threshold
  • 40kHz maximum
• Clock Outputs
  • 12V gate outputs, rise/fall time approximately 1us
  • 40kHz maximum
  • Jitter (x1 output): max 30µs < 120BPM, max 5µs >= 120BPM
  • Latency (clock in to x1 output): 8µs worst-case, 3.5µs typical
• CV Inputs:
  • Rotate, Slip: Knob attenuates jack signal. Full range: 0V to +3.3V
  • Shuffle, Skip, PW: Knob offsets jack signal. Full range: -5V to +5V
• Gate Inputs:
  • 4x Fast, Mute: 2.5V threshold. Button toggles state.