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Dist amp

thinkfat·dist-amp

Dist amp PCB layout, top view — open source board by thinkfat
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About the Dist amp PCB

Dist amp is an open source PCB design by thinkfat, published on GitHub. It is a 4-layer board measuring 63.5 × 100 mm, with 37 components from 14 distinct parts.

Other key parts include the MC78M09_TO252 and MAX4022ESDT. By type, the board carries 16 capacitors, 9 resistors, 6 connectors, 2 ICs, 2 inductors and 1 test point.

It belongs with the audio designs in this gallery.

From the project

10MHz Distribution Amplifier (4 channels)

This repository contains a 10MHz Distribution Amplifier (4 channels). It's use is mainly in electronics labs or ham radio shacks for distributing a 10MHz frequency standard (GPSDO, Rb atomic clock).

The circuit is based on a design by W. H. Rech, DF9IC, with minor modifications by myself.

The doc folder contains the schematic in PDF format. It also contains S11/S21 measurements done with a NanoVNA V2plus4 (nanovna-saver screenshot):

Main components on the Dist amp

MC78M09_TO252MAX4022ESDT

Dist amp bill of materials (BOM)

37 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MC78M09_TO252
U1
1
MAX4022ESDT
U2
5
Conn_Coaxial
J1, J2, J3, J4, J5
1
PJ-037BH
J6
1
TestPoint_2Pole
TP1
1
1N4148WS
D1
2
1u
L1, L2
10
100N
100n
C1, C4, C5, C6, C7, C9, C10, C11 +2
3
10U
10u
C2, C3, C8
2
220P
220p
C13, C15
1
470P
470p
C14
6
49.9
R1, R3, R5, R6, R7, R9
2
10K
10k
R2, R4
1
4K7
4k7
R8

Dist amp design files

The KiCad project lives in the thinkfat/dist-amp repository on GitHub; these links point at the commit this page was built from.

Dist amp: common questions

How big is the Dist amp PCB?

The Dist amp measures 63.5 × 100 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Dist amp?

37 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Dist amp design files?

From the thinkfat/dist-amp repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Dist amp design in my own project?

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

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