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Minima PAMP

nradulovic·hw_minima·minima_amp/minima.kicad_pcb

Minima PAMP PCB layout, top view — open source board by nradulovic
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About the Minima PAMP PCB

Minima PAMP is an open source PCB design by nradulovic, published on GitHub. It is a 2-layer board measuring 70 × 50 mm, with 28 components from 19 distinct parts.

Other key parts include the LM1875. By type, the board carries 9 capacitors, 7 resistors, 3 connectors, 2 diodes and 1 IC.

It belongs with the audio designs in this gallery.

From the project

LM1875 based audio power amplifier

.. contents:: Table of Contents :depth: 3

This document shall describe rationales used to design and build audio power amplifier using LM1875 integrated circuit.

The amplifier architecture consists of the following sections:

Input circuit Power amplifier * Power supply

All sections are located on separate PCB boards.

Input circuit ==================================

Main components on the Minima PAMP

LM1875

Minima PAMP bill of materials (BOM)

28 components, 19 distinct parts.

QtyPartRefs
1
LM1875
TI:LM1875T/NOPB
U1
1
input
Phoenix: 1843619 (MCV 1,5/ 3-G-3,81)
J1
1
output
Phoenix: 1803426 (MCV 1,5/ 2-G-3,81)
J2
1
powersupply
Phoenix: 1803439 (MCV 1,5/ 3-G-3,81)
J3
1
2n2
SR211A222JAR
Clp1
1
220p
AVX:SR211A221JAR
Czi1
1
2u
Ld1
1
4.7
Vishay:PR02000204708JA100
Rd1
2
100
TE Connectivity:LR0204F100R
Rlp1, Rzi1
2
1N5404
ON Semiconductor:1N5404RL
D1, D2
2
470u
Rybicon:16YXJ470M8X11.5
C1, C3
1
220n
WIMA:MKS2D032201C00KSSD
C2
4
470u
Rybicon:16YXJ470M8X11.5
C4, C5, C7, C8
2
100n
WIMA:MKP2D031001F00KSSD
C6, C9
2
200
TE Connectivity:LR1F499R
R1, R4
2
3k6
TE Connectivity:LR1F7K5
R2, R5
1
100k
TE Connectivity:LR0204F100K
R3
1
4.7
Vishay:PR02000204708JA100
R6
1
10
TE Connectivity:LR1F10R
R7

Minima PAMP design files

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

Minima PAMP: common questions

How big is the Minima PAMP PCB?

The Minima PAMP measures 70 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Minima PAMP?

28 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the Minima PAMP design files?

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

Can I use the Minima PAMP design in my own project?

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

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