HardLabs

Snark barker mini

computerguy096·snark-barker-mini·kicad/SnarkBarker.kicad_pcb

Snark barker mini PCB layout, top view — open source board by computerguy096

About the Snark barker mini PCB

Snark barker mini is an open source PCB design by computerguy096, published on GitHub under the CC-BY-SA-4.0 license. It is a 4-layer board measuring 103.7 × 78.5 mm, with 175 components from 64 distinct parts.

Other key parts include the L7805, L7905, DAC0808, AT89LP51 and 74LS32. By type, the board carries 75 capacitors, 55 resistors, 33 ICs, 5 jumpers, 2 transistors and 2 diodes.

It belongs with the audio designs in this gallery.

From the project

A miniaturized version of the Snark Barker

The Snark Barker Mini is a function compatible clone of the original Snark Barker, made by schlae. It implements all the features of the original Sound Blaster:

- OPL2 FM synth - digital sound playback and recording - gameport with MIDI IN/OUT - SAA1099 (Creative Music System) synth

The only major difference is the lack of a volume potentiometer. Due to the card's size and parts availability contraints, the volume is pre-set at max output, but this should not be a problem for speaker systems which have adjustable volume.

Snark barker mini, from the project README
From the project README

Main components on the Snark barker mini

L7805L7905DAC0808AT89LP5174LS3274LS7474LS12574LS374YM3014SAA1099YM381274LS13974LS0874LS13874LS245NE55674LS14LM324LM393LM4880MX

Snark barker mini bill of materials (BOM)

175 components, 64 distinct parts.

QtyPartRefs
1
L7805
U1
1
L7905
U2
1
DAC0808
U3
1
AT89LP51
U4
3
74LS32
U5, U14, U25
4
74LS74
U6, U23, U27, U28
1
74LS125
U7
2
74LS374
U8, U9
1
YM3014
U10
2
SAA1099
U11, U12
1
YM3812
U13
1
74LS139
U15
3
74LS08
U16, U24, U26
2
74LS138
U17, U18
2
74LS245
U19, U20
2
NE556
U21, U22
1
74LS14
U29
2
LM324
U30, U31
1
LM393
U32
1
LM4880MX
U33
Show 44 more
QtyPartRefs
2
2N3904
Q1, Q2
1
12MHz
Y1
1
Prog
J1
1
I/O ADDX
JP1
1
IRQ
JP2
1
Gameport enable
JP3
1
DMA Enable
JP4
1
DSP PWR
JP5
1
8-bit ISA slot
SL1
2
1N4148
D1, D2
2
30p
C1, C2
5
330p
C3, C4, C37, C46, C48
2
270p
C5, C7
1
470p
C6
1
680p
C8
4
10n
C9, C10, C11, C12
29
100n
C13, C14, C15, C19, C20, C21, C22, C41 +21
3
22n
C16, C17, C18
1
4.7n
C23
11
10uF
C24, C36, C39, C42, C54, C55, C57, C58 +3
3
1n
C25, C26, C38
3
2.2n
C27, C28, C47
3
1uF
C29, C30, C31
3
100uF
C32, C33, C43
2
100p
C34, C35
2
47p
C40, C44
6
4.7K
R1, R2, R4, R20, R48, R55
11
1K
R3, R5, R6, R7, R8, R9, R10, R11 +3
4
2k
R13, R14, R15, R16
1
47
R17
5
10K
R18, R19, R24, R25, R41
1
2.2K
R21
3
1.5K
R22, R23, R50
2
47K
R26, R27
3
27K
R28, R29, R54
2
15K
R30, R31
4
20K
R32, R33, R34, R35
3
68K
R38, R39, R52
3
470K
R40, R47, R53
2
470
R42, R44
1
33K
R43
2
39K
R45, R51
1
100K
R46
1
2.7K
R49

Snark barker mini design files

The KiCad project lives in the computerguy096/snark-barker-mini repository on GitHub; these links point at the commit this page was built from.

Snark barker mini: common questions

How big is the Snark barker mini PCB?

The Snark barker mini measures 103.7 × 78.5 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the Snark barker mini?

175 components, from 64 distinct parts. The full bill of materials is listed on this page.

Where can I download the Snark barker mini design files?

From the computerguy096/snark-barker-mini repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Snark barker mini design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which computerguy096 chose for the repository.

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