HardLabs

Crossover

maqifrnswa·scimpy·boards/crossover-old/crossover.kicad_pcb

Crossover PCB layout, top view — open source board by maqifrnswa

About the Crossover PCB

Crossover is an open source PCB design by maqifrnswa, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 185.4 × 105.4 mm, with 120 components from 25 distinct parts.

Other key parts include the TL072, TL074 and TDA7292. By type, the board carries 54 capacitors, 51 resistors, 6 ICs, 4 connectors and 2 diodes.

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

From the project

Scimpy Speaker Design Tool

.. image:: https://ci.appveyor.com/api/projects/status/nbab5l0lkaqwie2u?svg=true :width: 100 :target: https://ci.appveyor.com/project/maqifrnswa/scimpy :alt: Appveyor build status

Scimpy is an open-source, cross-platform loudspeaker design tool. Features include:

* Modeling speaker impedance, phase, SPL, and group delay from TS Parameters

* Measuring speaker impedance using your sound card as a signal generator and data acquisition system

Main components on the Crossover

TL072TL074TDA7292

Crossover bill of materials (BOM)

120 components, 25 distinct parts.

QtyPartRefs
1
TL072
U1
3
TL074
U2, U4, U6
2
TDA7292
U3, U5
2
CONN_01X03
P1, P2
2
CONN_01X04
P3, P4
1
DUAL_POT
RV1
2
1K POT
RV2, RV3
1
Diode_Bridge
D1
1
6.8V
D2
18
100n
C1, C3, C4, C6, C9, C14, C21, C26 +10
2
6800u
C2, C5
26
100n
C7, C8, C10, C11, C12, C13, C15, C16 +18
4
1u
C31, C37, C41, C42
4
1000u
C35, C39, C44, C47
8
2K2
R1, R37, R39, R40, R42, R43, R44, R45
2
1K 1W
R2, R3
20
R
R4, R5, R6, R7, R8, R9, R10, R11 +12
2
68K
R24, R30
2
1K5
R25, R32
4
4.8R
R26, R28, R31, R34
Show 5 more
QtyPartRefs
3
18K
R27, R33, R36
2
560R
R29, R35
4
Rph
R38, R41, R46, R47
2
Rbs1
R48, R50
2
Rbs2
R49, R51

Crossover design files

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

Crossover: common questions

How big is the Crossover PCB?

The Crossover measures 185.4 × 105.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Crossover?

120 components, from 25 distinct parts. The full bill of materials is listed on this page.

Where can I download the Crossover design files?

From the maqifrnswa/scimpy repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Crossover design in my own project?

Yes, under the terms of its GPL-3.0 license, which maqifrnswa chose for the repository.

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