HardLabs

Marzipan

Josephrp·meshtonic·firmwares/mayhem-firmware/hackrf/hardware/marzipan/marzipan.kicad_pcb

Marzipan PCB layout, top view — open source NXP board by Josephrp

About the Marzipan PCB

Marzipan is an open source NXP PCB design by Josephrp, published on GitHub under the Custom license license. It is a board measuring 120 × 75 mm, with 416 components from 151 distinct parts.

Its main chip is the LPC4320FBD144, from the NXP family. Other key parts include the SKY13350, RX_LOWPASS_FILTER, RFFC5072, RX_HIGHPASS_FILTER and SKY13317. By type, the board carries 170 capacitors, 99 connectors, 83 resistors, 23 ICs, 16 inductors and 9 diodes.

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

From the project

Meshtonic H4M Companion — ESP32-S3 carrier for PortaPack H4M / Mayhem with multi-slot LoRa and standalone Meshtastic

Copyright 2012 - 2016 Great Scott Gadgets

This is a free hardware design; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.

This design is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

Main components on the Marzipan

SKY13350RX_LOWPASS_FILTERRFFC5072RX_HIGHPASS_FILTERSKY13317MGA-81563LXES1TBCC2-004MAX2837MAX5864SI5351CW25Q80BVTPS62410LPC4320FBD144GSG-XC2C64A-7VQG100C

Marzipan bill of materials (BOM)

416 components, 151 distinct parts — part numbers from the project's BOM.

QtyPartRefs
7
SKY13350
U1, U2, U5, U6, U7, U10, U11
1
RX_LOWPASS_FILTER
U3
1
RFFC5072
U4
1
RX_HIGHPASS_FILTER
U8
3
SKY13317
U9, U12, U14
2
MGA-81563
U13, U25
1
LXES1TBCC2-004
U15
1
MAX2837
U17
1
MAX5864
U18
1
SI5351C
U19
1
W25Q80BV
U20
1
TPS62410
U21
1
LPC4320FBD144
U23
1
GSG-XC2C64A-7VQG100C
U24
5
MOSFET_P
Q1, Q2, Q3, Q4, Q5
1
GSG-XTAL4PIN
X1
1
MCU_XTAL
X2
1
RTC_XTAL
X3
1
USB-MICRO-B
J1
1
RF-SHIELD-FRAME
J2
Show 131 more
QtyPartRefs
1
RF-SHIELD-COVER
J3
6
MOUNTING_HOLE
J4, J5, J6, J7, J8, J9
1
GND_CLIP
J10
1
1V8
P1
1
CLKOUT
P2
1
GND
P3
1
ANTENNA
P4
1
LEDS
P5
1
GPO4
P6
1
GPO2
P7
1
VCC
P8
1
BASEBAND
P9
1
GPO1
P13
1
XCVR_CLKOUT
P14
1
INTR
P15
1
CLKIN
P16
1
GPO6
P17
1
OEB
P18
1
GPO3
P19
1
GPIO
P20
1
REF_IN
P21
1
I2S
P22
1
DBGEN
P23
1
TRST
P24
1
LPC_ISP
P25
1
LPC_JTAG
P26
1
MIXER_SDATA
P27
1
SD
P28
1
CPLD_JTAG
P29
1
BANK2_AUX
P30
1
MIXER_SCLK
P31
1
MIXER_ENX
P32
1
MIXER_RESETX
P33
1
MIX_BYPASS
P34
1
!MIX_BYPASS
P35
1
VAA
P36
1
SCL
P37
1
SDA
P38
1
SSP1_SCK
P39
1
SSP1_MOSI
P40
1
SSP1_MISO
P41
1
TX
P42
1
RX
P43
1
HP
P44
1
LP
P45
1
TX_MIX_BP
P46
1
RX_MIX_BP
P47
1
TX_AMP
P48
1
RX_AMP
P49
1
AMP_BYPASS
P50
1
!TX_AMP_PWR
P51
1
!RX_AMP_PWR
P52
1
CS_XCVR
P53
1
CS_AD
P54
1
TXENABLE
P55
1
RXENABLE
P56
1
XTAL2
P57
1
GCK1
P58
1
GCK2
P59
1
SGPIO_CLK
P60
1
DA0
P61
1
DA7
P62
1
DD0
P63
1
DD9
P64
1
DA4
P65
1
DD5
P66
1
RSSI
P67
1
SPIFI_CS
P68
1
VREGMODE
P69
1
EN_1V8
P70
1
ID
P71
6
GP_CLKIN
P72, P75, P76, P77, P78, P79
1
P1_2
P73
1
P1_1
P74
1
SHIELD
P80
1
SPIFI_SIO2
P81
1
SPIFI_SIO3
P82
10
GND
P83, P84, P85, P86, P87, P88, P89, P90 +2
1
VAL**
MARK1MM
1
DFU
SW1
1
RESET
SW2
1
MIX_IN_BALUN
T1
1
MIX_OUT_BALUN
T2
1
RX_BALUN
T3
1
TX_BALUN
T4
1
VAL**
TESTPOINT-30MIL-MASKONLY
3
GSG-DIODE-TVS-BI
D1, D3, D9
1
VAALED
D2
1
USBLED
D4
1
RXLED
D5
1
TXLED
D6
1
VCCLED
D7
1
1V8LED
D8
3
FILTER
FB1, FB2, FB3
5
DNP
L1, L4, L6, L8, L9
5
10uH
L2, L3, L5, L12, L13
1
6.2nH
L7
2
4u7
L10, L11
33
33pF
C1, C3, C5, C7, C10, C11, C16, C19 +25
10
10nF
C2, C4, C6, C87, C88, C89, C92, C93 +2
20
22pF
C8, C21, C32, C43, C48, C51, C84, C85 +12
57
100nF
C9, C17, C18, C20, C23, C25, C28, C31 +49
2
330pF
C12, C13
1
8p2
C14
2
180pF
C15, C112
4
47pF
C26, C27, C116, C156
11
100pF
C41, C42, C52, C68, C69, C70, C90, C159 +3
4
1uF
C53, C106, C161, C171
7
2.2uF
C72, C74, C76, C78, C80, C82, C124
3
330nF
C97, C98, C100
2
3pF
C104, C111
6
10uF
C105, C126, C127, C143, C145, C146
1
3.3nF
C114
4
18pF
C118, C157, C158, C164
1
DNP
C155
2
DNP
C169, C170
4
470
R1, R2, R72, R75
1
22k
R3
1
51k
R4
26
10k
R5, R6, R7, R11, R12, R24, R29, R36 +18
6
1k
R8, R9, R10, R13, R73, R76
4
4k7
R14, R15, R16, R17
4
1k8
R18, R27, R28, R74
22
39
R19, R30, R31, R32, R33, R34, R77, R78 +14
7
0
R20, R21, R22, R23, R57, R58, R62
2
475
R25, R26
1
DNP
R35
2
162k
R46, R55
1
330k
R47
1
715k
R56
1
12k
R69

Marzipan design files

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

Marzipan: common questions

What microcontroller does the Marzipan use?

The Marzipan is built around the LPC4320FBD144, from the NXP family.

How big is the Marzipan PCB?

The Marzipan measures 120 × 75 mm and is 1.6002 mm thick.

How many components are on the Marzipan?

416 components, from 151 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 Marzipan design files?

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

Can I use the Marzipan design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Marzipan 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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