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Mdt chipdown

andykarpov·mdt-chipdown·pcb/revA/mdt-chipdown.kicad_pcb

Mdt chipdown PCB layout, top view — open source NXP board by andykarpov
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About the Mdt chipdown PCB

Mdt chipdown is an open source NXP PCB design by andykarpov, published on GitHub under the MIT license. It is a 2-layer board measuring 94 × 79.6 mm, with 61 components from 44 distinct parts.

Its main chip is the AMS1117-3.3, from the NXP family. Other key parts include the TPD3S014, C124407, PCM5102A and APS6404L-3SQR. By type, the board carries 22 capacitors, 14 resistors, 5 ICs, 4 diodes, 3 connectors and 2 fuses.

It belongs with the audio designs in this gallery.

From the project

MicroDEXED touch custom PCB

This is an attempt to create a custom PCB of the MicroDEXED Touch (MDT) project to satisfy my own requirements:

- No modules, all chips should be soldered on PCB - Avoid THT components as much as possible

Warning! Work in progress. The revB is untested and unreleased yet.

- Current tested revision: revA - Current dev revision: revB

- revA - initial revision - Note: Jumpers to select MIDI IN/OUT standard should be removed, instead of them please use 0 Ohm resistors - Latest revA contains the following changes: jumpers replaced with solder jumpers - The overall display height is slightly…

Mdt chipdown, from the project README
From the project README

Main components on the Mdt chipdown

TPD3S014AMS1117-3.3C124407PCM5102AAPS6404L-3SQR

Mdt chipdown bill of materials (BOM)

61 components, 44 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TPD3S014
AMS1117-3.3
U1
1
AMS1117-3.3
Teensy4.1
U2
1
C124407
PCM5102A
U3
1
PCM5102A
ILI9341 3.2" capacitive touch
U4
1
APS6404L-3SQR
W25Q128JVS
U5
1
C5156614
SPDIF IN
J1
1
C5156614
SPDIF OUT
J2
1
C5360898
G3
J3
1
Conn_01x11
BI1
1
C7435302
Rotary_Encoder_L
ENC1
1
C7435302
Rotary_Encoder_R
ENC2
2
C20812
2A
F1, F2
1
TLP2362
OC1
1
C125050
ON_OFF
SW1
1
C125050
PROGRAM
SW2
1
C53447038
LINE OUT
TRS1
1
C53447038
MIDI OUT
TRS2
1
C53447038
MIDI IN
TRS3
1
C2346
USB_HOST
USB1
1
C165948
USB
USB2
Show 24 more
QtyPartRefs
1
BAT54S
1N4148W
D1
1
SM6T6V8A
D2
1
LED1
LED
D3
1
LED2
LED
D4
5
10U
10u
C1, C4, C6, C14, C18
2
100UF
100uF
C2, C3
7
100N
100n
C5, C7, C8, C9, C12, C21, C22
1
100UF
2u2
C10
2
100N
10u
C11, C15
1
2U2
2n2
C13
1
2N2
2n2
C16
1
10U
100n
C17
1
2N2
100n
C19
1
10U
100uF
C20
2
5K1
5k1
R1, R2
2
47
R3, R7
1
220
R4
2
1k
R5, R9
1
470
1k
R6
2
470
R8, R13
1
10k
R10
1
470
10k
R11
1
470
0
R12
1
2M2
470
R14

Mdt chipdown design files

The KiCad project lives in the andykarpov/mdt-chipdown repository on GitHub; these links point at the commit this page was built from.

Mdt chipdown: common questions

What microcontroller does the Mdt chipdown use?

The Mdt chipdown is built around the AMS1117-3.3, from the NXP family.

How big is the Mdt chipdown PCB?

The Mdt chipdown measures 94 × 79.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mdt chipdown?

61 components, from 44 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 Mdt chipdown design files?

From the andykarpov/mdt-chipdown 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 Mdt chipdown design in my own project?

Yes, under the terms of its MIT license, which andykarpov chose for the repository.

Can I test firmware for the Mdt chipdown without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug NXP firmware against it before you order a PCB.

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