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Tda bridge

f4hpu·tda_bridge·kicad_prj/tda_bridge.kicad_pcb

Tda bridge PCB layout, top view — open source board by f4hpu

About the Tda bridge PCB

Tda bridge is an open source PCB design by f4hpu, published on GitHub. It is a 2-layer board measuring 175.2 × 125.4 mm, with 170 components from 56 distinct parts.

Other key parts include the TDA7293V and TL084. By type, the board carries 70 resistors, 47 capacitors, 18 diodes, 3 ICs, 3 transformers and 2 transistors.

It belongs with the audio designs in this gallery.

From the project

Bridgeable audio stereo amplifier, based on a pair of TDA7293 chips

This repository contains a KiCAD 6.0.9 project for an electronics board (hardware).

This electronics board is a bridgeable audio stereo amplifier, based on a pair of TDA7293 chips.

The schematics around the TDA7293 was inspired by ST datasheet and improved by Francis Ibre for better sound.

It includes onboard the same card both a power Supply and a watchdog to protect the loudspeakers against continuous voltage.

Tda bridge, from the project README
From the project README

Main components on the Tda bridge

TDA7293VTL084

Tda bridge bill of materials (BOM)

170 components, 56 distinct parts.

QtyPartRefs
2
TDA7293V
IC1, IC2
1
TL084
IC3
1
SE13
M30DC0
2
2N2907
Q1, Q2
2
BTOR1
X1, X2
1
SE13
P30DC0
4
MOUNT-PAD-ROUND3.6
H1, H2, H3, H4
1
Jumper
JP1
2
FINDER-30.22
K1, K3
16
SE13
PLEDCLIP1, PLEDCLIP2, PLEDCLIP3, PLEDCLIP4, POUTL1, POUTL2, POUTL3, POUTR1 +8
2
2N2219
T1, T2
1
BC517
T3
4
BYW29
D1, D2, D3, D4
4
BYW98-200
D5, D6, D11, D12
3
—
D7, D14, D15
2
1N4004
D8, D13
1
1N4148
D9
4
1N4148DO35-7
D16, D17, D18, D19
4
0.1nF
C1, C2, C5, C6
2
—
C3, C22
Show 36 more
QtyPartRefs
2
—
C4, C23
4
2200uF 40V
C7, C9, C25, C27
8
1OOnF 63VMKT
C8, C10, C15, C18, C24, C26, C28, C31
2
22000uF
C11, C12
2
0.1uF
C13, C14
4
10000uF 40V
C16, C17, C29, C30
2
100uF 63V Elna
C19, C32
2
22uF 35V
C20, C21
10
4.7uF 50V
C33, C34, C35, C36, C37, C38, C39, C40 +2
4
1uF 16V
C41, C42, C43, C44
1
10uF 25V
C45
4
0.1
R1, R2, R6, R7
2
1Meg
R3, R22
2
100
R4, R24
2
47k
R5, R25
2
600
R8, R28
2
10k
R9, R31
6
4.7, 5W
R10, R11, R12, R13, R14, R15
2
0.27 5W
R16, R35
2
0.27 1W
R17, R36
11
10k
R18, R19, R26, R50, R51, R52, R53, R54 +3
1
22k
R20
3
33k
R21, R48, R49
3
220
R27, R34, R45
4
82k
R30, R33, R37, R39
2
6.8k
R32, R38
1
220
R40
1
100k
R41
1
100k
R42
4
33k
R43, R44, R46, R47
4
50k
R58, R59, R60, R61
4
530k
R62, R63, R64, R65
1
2.2k
R66
1
2.2k
R67
3
68k
R68, R69, R74
2
330
R70, R72

Tda bridge design files

The KiCad project lives in the f4hpu/tda_bridge repository on GitHub; these links point at the commit this page was built from.

Tda bridge: common questions

How big is the Tda bridge PCB?

The Tda bridge measures 175.2 × 125.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Tda bridge?

170 components, from 56 distinct parts. The full bill of materials is listed on this page.

Where can I download the Tda bridge design files?

From the f4hpu/tda_bridge repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Tda bridge design in my own project?

The repository has no license, so all rights stay with f4hpu. Use it as a reference, and ask the author before reusing the design.

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