Optional connection to a powersupply unit (PSU). A 7V-10V transformer, or a wall adapter could be used.
At least 500 mA is recommended if 1k pots are used, and 50 mA if 10k pots are used.
Jumper J5 has to select the "Ext." routing if the analog domain should be powered by the external source. Note that the prefered solution is to power the module via J2 (resp. via the USB supply of the MBHP_CORE_LPC17 module).
The external supply option is only provided for the case that the USB based power source is too weak to supply the module.
Serial connection to core:J19.
Serial chain connection. (not supported by standard driver)
chip select jumper A jumper has to be connected to this port to select the first or second chip select line of J2 for accessing the ADC.
analog power select jumper A jumper has to be connected to this port to select the voltage source for the analog domain (ADC, 4051 multiplexers and pots). With "dig." power will be supplied via the serial port J2, with "ext." power can be supplied via J1
J6 J7 J8 J9 J10 J11 J12 J13
8 * 8 analog inputs and 5V (=Vd) / Ground (=Vs) connections. Please note: all unused analog inputs have to be clamped to ground (Vss), otherwise your MIDIbox will send out a lot of random MIDI events!
Size: 100mm x 80mm
Double sided PCB design.
Plated through holes.
Green LPI solder mask both sides.
Electroless nickle/immersion gold pad plating. (RoHS compliant)
White topside legend silkscreen.