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Sonus7 rev1

BasementCircuits·Sonus7·PCBs/sonus7_filter_comparator_rev1/sonus7_rev1.kicad_pcb

Sonus7 rev1 PCB layout, top view — open source board by BasementCircuits

About the Sonus7 rev1 PCB

Sonus7 rev1 is an open source PCB design by BasementCircuits, published on GitHub under the CERN-OHL-W-2.0 license. It is a 2-layer board measuring 200 × 87.8 mm, with 257 components from 31 distinct parts.

Other key parts include the TLC272. By type, the board carries 113 resistors, 49 capacitors, 42 ICs, 16 connectors, 14 test points and 8 diodes.

It belongs with the audio and test & measurement designs in this gallery.

From the project

Analog seven-band spectrum bargraph with op amps.

Each band has a spacing of 1.25 octaves. The bands are: 63 Hz, 160 Hz, 400 Hz, 1.25 kHz, 2.5 kHz, 6.25 kHz, 16 kHz.

The filters are second-order Multiple Feedback bandpass filters using TLC272 opamps. The VU-meters consist of a logaritmic comparator array, also using TLC272 opamps. The project is inspired by a reel of 2000 TLC272 bought cheaply at an auction.

Sonus7 rev1, from the project README
From the project README

Main components on the Sonus7 rev1

TLC272

Sonus7 rev1 bill of materials (BOM)

257 components, 31 distinct parts.

QtyPartRefs
42
TLC272
U1, U2, U3, U4, U5, U6, U7, U8 +34
1
IRLML6402
Q1
1
Conn_01x04
J1
1
DC-Jack
J2
7
Conn_02x05_Counter_Clockwise
J3, J5, J7, J9, J11, J13, J15
7
Conn_01x02
J4, J6, J8, J10, J12, J14, J16
7
R_U
RV1, RV3, RV5, RV7, RV9, RV11, RV13
7
R_L
RV2, RV4, RV6, RV8, RV10, RV12, RV14
7
TP_BP
TP1, TP3, TP5, TP7, TP9, TP11, TP13
7
TP_PEAK
TP2, TP4, TP6, TP8, TP10, TP12, TP14
7
1N4148
D1, D2, D3, D4, D5, D6, D7
1
8.2V
D8
14
C
C1, C2, C7, C8, C13, C14, C19, C20 +6
28
100n
C3, C4, C5, C9, C10, C11, C15, C16 +20
7
220n
C6, C12, C18, C24, C30, C36, C42
7
13k
R1, R59, R68, R77, R86, R95, R104
7
9.1k
R2, R60, R69, R78, R87, R96, R105
7
6.2k
R3, R61, R70, R79, R88, R97, R106
7
4.3k
R4, R62, R71, R80, R89, R98, R107
7
3k
R5, R63, R72, R81, R90, R99, R108
Show 11 more
QtyPartRefs
7
2.2k
R6, R64, R73, R82, R91, R100, R109
7
1.6k
R7, R65, R74, R83, R92, R101, R110
7
1.1k
R8, R66, R75, R84, R93, R102, R111
7
750k
R9, R67, R76, R85, R94, R103, R112
7
R1
R10, R17, R24, R31, R38, R45, R52
7
R3
R11, R18, R25, R32, R39, R46, R53
14
100k
R12, R13, R19, R20, R26, R27, R33, R34 +6
7
R2
R14, R21, R28, R35, R42, R49, R56
7
160k
R15, R22, R29, R36, R43, R50, R57
7
220k
R16, R23, R30, R37, R44, R51, R58
1
100R
R113

Sonus7 rev1 design files

The KiCad project lives in the BasementCircuits/Sonus7 repository on GitHub; these links point at the commit this page was built from.

Sonus7 rev1: common questions

How big is the Sonus7 rev1 PCB?

The Sonus7 rev1 measures 200 × 87.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Sonus7 rev1?

257 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the Sonus7 rev1 design files?

From the BasementCircuits/Sonus7 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Sonus7 rev1 design in my own project?

Yes, under the terms of its CERN-OHL-W-2.0 license, which BasementCircuits chose for the repository.

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