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Project

Projecttitel: VDD 3505-01 Five buffered Voltages

Status: READY

Startdate: 05.Jan.2018

Duedate: --

Manufacture link: DIYsynth.de

 

 

 

Specs:

The module provides five independent buffered control voltages from -5V to 5V. The outputs are buffered to reduce voltage influences induced by load changes at the individual outputs.

Typical use cases of an voltage module are

  • offset voltages for other modules like VCAs or VCFs
  • Wide range tuning of VCOs

As part of the "01" sub-series the PCB is compatible to Eurorack as well as MOTM. (-12/12V & -15V/15V) Supported Power Header formats are 10/16 pin Euro and MTA 156. The module is protected by rectifiers and provides power capacitors.

You won't find the usual filter resistors or beads, because there won't be voltages spikes induced by this module. The linear regulator and the caps are just fine. Since there is nearly no power soak at the reference voltage, the OpAmps will prevent voltage interference from the distribution board. 

 

BOM:

Five Voltages.csv

IDID-PCBCasetypeAmountDesignatorSource
1D1,D2D_DO-41_SOD81_P10.16mm_Horizontal21N4001 
2IC Socket1pin-vdd41pindiysynth.de
3C1,C2CP_Radial_D5.0mm_P2.00mm210µFdiysynth.de
4C3,C4CP_Radial_D5.0mm_P2.00mm21µFdiysynth.de
5C5,C6,C7,C8,C9,C10,C11,C12C_Disc_D5.0mm_W2.5mm_P2.50mm8100nFdiysynth.de
6J1MTA-100-3p1CV1 100KB 
7J2MTA-100-3p1CV2 100KB 
8J3MTA-100-3p1CV3 100KB 
9J4MTA-100-3p1CV4 100KB 
10J5MTA-100-3p1CV5 100 KB 
11J11MTA-100-2p1CV4 
12J12MTA-100-2p1CV5 
13J13MTA-100-2p1CV1 
14J14MTA-100-2p1CV2 
15J15MTA-100-2p1CV3 
16P2Pin_Header_Straight_2x08_Pitch2.54mm1EURO - optional 
17R1,R2,R3,R4,R5,R11,R12,R13,R14,R15,R16,R17Resistor 1% THT121K 
18R6,R7,R8,R9,R10Resistor 1% THT5100K 
19U1,U3,U5DIP-8_W7.62mm3TL082 
20U2TO-92_Inline_Wide17805 
21P1MTA1561MOTM -optinal 
22J6Cliff13841Out-CV1disynth.de
23J7Cliff13841Out-CV2disynth.de
24J8Cliff13841Out-CV3disynth.de
25J9Cliff13841Out-CV4disynth.de
26J10Cliff13841Out-CV-5disynth.de

 

Schematics:

 

Five Voltages.pdf

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