Datasheet

PedalSync™

Tru-Foot

LFO chip MV-55(B)

Datasheet - p.8

PedalSync_MV-55_MV-55B_Tru-Foot_LFO_Datasheet.doc DRAFT v9.1

Waveform Select switch and LEDs

See the LFO Output section, above.

Control Voltage (CV) Input

In Pot mode, a Control Voltage (CV) can be used to continuously control the tempo. Have the control

voltage trigger a 4066 CMOS Quad Bilateral Switch and ground pin 11 (the Tap button input). In the

alternative, consider an optocoupler or transistor.

The ideal CV signal will have a 50% duty cycle At the downbeat, pin 11 should be grounded. If this

is not the case, invert your CV signal.

The LFO adjusts immediately upon the latest tap.

Program Defaults

• Not Bypassed, LFO output on

• Pot/Tap mode

• Sine wave

• 50% Duty Cycle

• Offset = zero

• 1:1 Ratio

• Speed - 120 bpm

MIDI - Backward Compatibility

The exclusive MIDI channel for the PedalSync system is MIDI Channel 15.

MIDI Program

Change messages sent on any other channel will be ignored by the chip.

The Tru-Foot LFO chip also responds to standard MIDI Start, Stop, and Clock messages.

Note that in Clock mode, the chip will not function properly outside of the 24-240 bpm range limits.