MK3 Integrated MIDI Keyboard Control Circuit



Features

* Professional feature set with minimal external components required

* Four keyboard zones with independent MIDI Program, key range, volume, velocity curve,
    modulation, and transpose settings.

* MIDI input with merge function

* Supports preset storage with 32 memory locations

* Easy interface to FATAR keyboard assemblies (49, 61, 76, 88 key)
    with support for pressure sensor.

* Transmits Pitch, Mod, and Channel Pressure (Aftertouch) and any standard controller message.

* Transmits MIDI Sustain (damper) message

* 40-pin plastic DIP


Description

The FM-MK3 is an integrated microcontroller for MIDI keyboard applications. A minimum of external components is required to build a full-featured four-zone MIDI master keyboard for consumer or professional use.

All master keyboard functions may be quickly and easily accessed with 10 switches and two control sliders. Three LED digits are used to display the current preset number and zone parameters.

Analog inputs are provided for pitch, modulation, aftertouch sensor, voltage pedal, and control sliders. An external nonvolatile memory provides storage for 32 presets. Preset memory may be loaded or saved via MIDI system-exclusive messages.

A single +5V supply is required. The on-chip clock generator is controlled by an external crystal.


Price and availability

The FM-MK3 is available from stock at a price of US$8 each (for 100 piece order). An evaluation kit (one MK3 sample plus technical documentation) is available at a cost of US$35 (US$45 for shipment outside of the U.S.).




© 1998 Forte Music. Specifications subject to change without notice.