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Eurorack-2164-Quad-Exponential-VCA

DIYSynthMNL·Eurorack-2164-Quad-Exponential-VCA·kicad/AS2164-Quad-Exponential-VCA.kicad_sch

Eurorack-2164-Quad-Exponential-VCA
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About the Eurorack-2164-Quad-Exponential-VCA PCB

Eurorack-2164-Quad-Exponential-VCA is an open source PCB design by DIYSynthMNL, published on GitHub. It is a board, with 113 components from 36 distinct parts.

Other key parts include the TL074, AS2164 and TL072. By type, the board carries 48 resistors, 22 capacitors, 15 diodes, 14 connectors, 5 ICs and 1 jumper.

It belongs with the audio designs in this gallery.

From the project

This is a Quad Exponential VCA based on the AS2164 Chip

A Eurorack Quad Exponential VCA based on the AS2164 chip — four high-performance VCAs in a single PDIP-16 package, drop-in compatible with the SSI/SSM 2164 family. 120 dB control range, 0.07 dB channel-to-channel gain matching, and a single MODE pin that selects between Class A (low distortion, high idle current) and Class AB (low power, moderate distortion).

Main components on the Eurorack-2164-Quad-Exponential-VCA

TL074AS2164TL072

Eurorack-2164-Quad-Exponential-VCA bill of materials (BOM)

113 components, 36 distinct parts.

QtyPartRefs
3
TL074
U1, U2, U4
1
AS2164
U3
1
TL072
U5
1
CV1
J1
1
Audio_in_1
J2
1
Audio_out_1
J3
1
CV2
J4
1
Audio_in_2
J5
1
Audio_out_2
J6
1
CV3
J7
1
Audio_in_3
J8
1
Audio_out_3
J9
1
CV4
J10
1
Audio_in_4
J11
1
Audio_out_4
J12
1
EuroPower_JST_3P
J13
1
EURO_PWR_16P
J14
1
Mix/VCA4
JP1
4
100K
RV1, RV3, RV5, RV7
4
50K
RV2, RV4, RV6, RV8
Show 16 more
QtyPartRefs
4
LED_Bi
D1, D2, D3, D4
9
BAT42
D5, D8, D9, D10, D11, D12, D13, D14 +1
2
~
D6, D7
10
100pF
C1, C2, C4, C5, C7, C8, C10, C11 +2
4
470pF
C3, C6, C9, C12
6
100nF
C13, C14, C16, C17, C18, C20
2
22uF
C15, C19
4
~
R1, R11, R21, R31
17
100K
R2, R7, R8, R12, R17, R18, R22, R27 +9
4
68K
R3, R13, R23, R33
8
1M
R4, R5, R14, R15, R24, R25, R34, R35
4
240K
R6, R16, R26, R36
4
1K
R9, R19, R29, R39
4
470R
R10, R20, R30, R40
1
7K5
R41
2
10K
R47, R48

Eurorack-2164-Quad-Exponential-VCA design files

The KiCad project lives in the DIYSynthMNL/Eurorack-2164-Quad-Exponential-VCA repository on GitHub; these links point at the commit this page was built from.

Eurorack-2164-Quad-Exponential-VCA: common questions

How many components are on the Eurorack-2164-Quad-Exponential-VCA?

113 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the Eurorack-2164-Quad-Exponential-VCA design files?

From the DIYSynthMNL/Eurorack-2164-Quad-Exponential-VCA repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Eurorack-2164-Quad-Exponential-VCA design in my own project?

The repository has no license, so all rights stay with DIYSynthMNL. Use it as a reference, and ask the author before reusing the design.

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