MCC-3 -- MIDI Clock Converter
The MCC-3 converts incoming MIDI timing clocks to a simple pulse
output suitable for synchronizing non-MIDI sequencers or drum machines,
for generating a click track, arpeggiator clock or driving a tap-tempo
device based on the incoming MIDI clock tempo.
The 24 pulse-per-quarter-note MIDI clock rate can be scaled to a lower
rate by a selectable divisor (2,
3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96 or 192) or scaled to the same or higher
rate by multiplying by 1, 2 or 4.
In addition to clock rate conversion, the MCC-3 also uses MIDI Song Start
and
Song Stop messages to control a Run/Stop footswitch control. This control
output produces a momentary pulse when the song starts, and again when the song
stops. This can be useful for controlling drum machines with a start/stop
footswitch input.
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The Clock and Run/Stop outputs each use a 1/4 inch TS jack for a normally
high
(+5 volt) signal that pulses low when active. These outputs are compatible
with systems that pull the output to a higher voltage level as well.
The MIDI In jack recognizes MIDI System Clock, Song Start, Continue and Stop
messages.
The MIDI Thru jack can be used to chain additional MIDI devices.
The power supply can be any DC source of +7 to +30 volts. The power connector
is a standard 2.1mm DC jack.
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Ordering Options
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Standard MCC-3: MIDI In, MIDI Thru, Clock pulse output, Run/Stop pulse
output
Includes: MCC-3, 120V AC adapter and printed instructions.
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In stock:
$150.00.
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MCC-3s: DIN Sync Input version: DIN Sync In, MIDI Out, Clock pulse
output, Run/Stop pulse output
The MCC-3s converts DIN Sync (AKA Sync-24 or Roland Sync) timing clocks to a
digital pulse output or MIDI clock output.
Includes: MCC-3s, 120V AC adapter and printed instructions.
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In stock:
$150.00.
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MCC-3m: DIN Sync Output version: MIDI In, DIN Sync Out, Clock pulse
output, Run/Stop pulse output
Like the standard MCC-3, except the MIDI Thru jack becomes a DIN-Sync output
jack.
Includes: MCC-3m, 120V AC adapter and printed instructions.
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In stock:
$150.00.
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Specifications
- Inputs: DC power in jack (120V AC adapter included), MIDI In DIN jack
- Outputs: MIDI Thru DIN jack, pulse output 1/4 inch TS phone jack,
start/stop output 1/4 inch TS jack.
- Indicators: Green LEDs for rate/power on indication, yellow LEDs
for output pulse indication and run/stop state.
- Enclosure: 1.52 x 5.57 x 6.5 inches, vinyl-covered steel and aluminum.
- Power consumption: Less than 1 watt.
- Pulse output: Open collector (with internally switchable
pullup resistor). Pulse high time = 20ms.
- User controls: Rate select pushbuttons: Divide MIDI clock rate
by the product of any combination of 1, 2, 3, 4 and 8
(1, 2, 3, 4, 6,
8, 12, 16, 24, 32, 48, 64, 96 or 192) or multiply rate by 1, 2 or 4.
May also be ordered as an assembled circuit board without the enclosure
or power supply for $80. Other customizations are possible. Contact
Electrongate for more information.
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