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MicroLink

brucemack·microlink·hw/ML3/ML3.kicad_pcb

MicroLink PCB layout, top view — open source board by brucemack
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About the MicroLink PCB

MicroLink is an open source PCB design by brucemack, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 130 × 56 mm, with 63 components from 43 distinct parts.

Other key parts include the TLV9164PWR, LTV-356T, LM1117MP-3.3, MCP4725A0T-E/CH and LM4040D30IDBZR. By type, the board carries 24 resistors, 18 capacitors, 6 ICs, 4 connectors, 4 diodes and 2 switches.

It belongs with the rf & radio designs in this gallery.

From the project

An open source EchoLink/AllStarLink implementation that runs on a simple microcontroller.

This file contains the details for the version 3 (ML3) of the MicroLink hardware. This is the first version that has a real enclosure so we are paying more attention to mechanical detail.

DRC Notes: * There are 12 warnings: "Silkscreen clipped by board edge."

Main components on the MicroLink

TLV9164PWRLTV-356TLM1117MP-3.3MCP4725A0T-E/CHLM4040D30IDBZR

MicroLink bill of materials (BOM)

63 components, 43 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TLV9164PWR
LMV324 (Actually LTV9161)
U1
2
LTV-356T
U2, U5
1
LM1117MP-3.3
NCP1117-3.3_SOT223
U3
1
MCP4725A0T-E/CH
MCP4725xxx-xCH
U4
1
LM4040D30IDBZR
LM4040DBZ-3
U7
1
DMG2305UX-13
Diodes Incorporated
Q1
1
DE9_RECEPTACLE
DE9_Receptacle
J1
1
PJ-102AH
J2
1
CONN_01X20
Conn_01x20
J3
1
CONN_01X02
Conn_01x02
J4
2
50K
10k
RV1, RV2
1
C7203003
~
S1
1
TS04-66-55-BK-160-SMT
SW0
2
Transformer_1P_1S
T1, T2
1
C84256
Red
D1
1
BAT54S
D2
1
C84259
Blue
D3
1
C2297
Green
D4
2
22U
10u
C1, C2
2
22N
22n
C3, C26
Show 23 more
QtyPartRefs
2
10N
10n
C4, C27
7
47U
47u
C5, C7, C8, C9, C11, C19, C20
3
0.1U
0.1u
C6, C18, C21
1
C22320
47u (Optional DC Block)
C10
1
47U
1u
C17
2
1.5K
1.5k
R1, R15
2
2.7K
2.7k
R2, R16
1
C17477
0R
R3
1
620
570
R4
2
2.2K
10k
R5, R6
1
220
200
R8
1
1k
R9
1
C17629
330k 1%
R10
1
C17589
270k 1%
R11
2
2.2K
2.2k
R12, R13
3
100
220
R17, R20, R22
1
C17477
0R
R18
1
220
R19
1
4.7
R21
1
0R
R23
1
C58595
1k
R24
1
39K
33k
R25
1
C17888
0R
R26

MicroLink design files

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

MicroLink: common questions

How big is the MicroLink PCB?

The MicroLink measures 130 × 56 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MicroLink?

63 components, from 43 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 MicroLink design files?

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

Can I use the MicroLink design in my own project?

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

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