MIDIbox Hardware Platform
R3 AIN Module

Click here for documentation for past revisions

Live Board Map:

Move your mouse around over the image below to see info on the parts.

Parts List:

MBHP AIN Orderlist (last update: 06-2006)
| Loc.  | Description                        | Qty | Mouser Part #    |
| IC1-4 | CD 4051 BE                         |  4  | 511-4051         |
| IC1-4 | IC-Sockets for multiplexers        |  4  | 571-3902614      |
| C1-4  | Ceramic Cap 100nF=.1uF "104"       |  4  | 80-C412C104K5R   |
| Jxx-- | 2-row DIL Headers (68 pins)        |  1  | 517-2380-6221TN  |
1.  The above pinheader counts are for recommended configuration, other loadings
    will change this count.  See the live board map above for the recommended
    connector placement.

PCBs and Kits are available: Click to order.

PCB Quick View:


# Location Detail Description                              
Analog inputs of the 4051 multiplexers. Have to be connected with the sliders of pots/faders, or can also be used as CV input (0V/5V), see also the MIDIbox Extensions Page. All unused analog inputs have to be clamped to ground (Vss), otherwise your MIDIbox will send out a lot of random MIDI events!
J5 Interface to J5 of the core module. J5:Vs and J5:Vd are the power pins, J5:A0..J5:A3 are the analog outputs of the multiplexers. If you leave out a 4051, clamp the appr. analog input (J5:A0, ... J5:A3) to ground in order to avoid random MIDI events.
J6 Interface to J6 of the core module. These are the address pins of the multiplexers which allow the MIDIbox to select one of eigth inputs, the appr. signal will be routed to the output of the 4051. Connection matrix: AINX4 J6:A -> CORE J6:RC AINX4 J6:B -> CORE J6:SC AINX4 J6:C -> CORE J6:SI The other two pins of J6 of the core module (J6:Vd and J6:Vs) don't have to be connected with the AINX4 module.
Power supply pins for the pots/faders.
Remember to avoid ground loops!


Changes from R2 PCB:
Double sided PCB design.
Plated through holes.
Green LPI solder mask both sides.
HASL pad plating.
White topside legend silkscreen.
All jumpers eliminated.
2x5 DIL pinheader footprint, pads and holes added to all connections.
Bypass caps added.

For complete technical info and instructions see www.midibox.org

Last update: 06-30-2006 by SmashTV

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