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4 layers170 × 100 mmMaster Timing Card, the printed circuit board in 3D

Master Timing Card

M0WUT/Master-Timing-Reference1
Open in PCBKitView on GitHub.kicad_pcb
Size
170 × 100 mm
Copper layers
4
Thickness
1.61 mm
Parts
417
Nets
468
Pads
1,724
Tracks, vias
2,808, 800
Pours
42
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
6 Nov 2023
Updated
9 May 2026

Overview

Master Timing Card is an open-source printed circuit board by M0WUT, from the M0WUT/Master-Timing-Reference repository on GitHub. It is a 4-layer board of 170 × 100 mm with 417 parts on 468 nets, routed with 2,808 tracks and 800 vias.

It is built around the SN74LVC1G125DBV, MAX3483ESA+T and RC32504A000GNK#BB0, with the LT8650SEV#PBF, TPS79301DBV and LT3045IDD#PBF among its other parts. Its parts include 161 capacitors, 117 resistors, 21 diodes, 12 ICs and 8 inductors.

Main components

12

README

README.md

Artefacts: https://m0wut.github.io/Master-Timing-Reference/

Parts

417
QtyValueFootprintReferences
77100nCapacitor_SMD:C_0402_1005MetricC12, C100, C101, C102, C103, C104, C105, C106, C107, C115, C116, C117, C118, C119, C120, C121 +61
231k8Inductor_SMD:L_0402_1005MetricFB1, FB10, FB11, FB12, FB13, FB14, FB15, FB16, FB17, FB20, FB21, FB22, FB23, FB24, FB25, FB26 +7
1710uCapacitor_SMD:C_0603_1608MetricC1, C11, C15, C23, C28, C32, C33, C41, C42, C43, C49, C85, C91, C128, C134, C135 +1
1733RResistor_SMD:R_0402_1005MetricR13, R49, R50, R54, R55, R56, R57, R58, R59, R66, R67, R68, R69, R75, R77, R79 +1
1610uCapacitor_SMD:C_0402_1005MetricC65, C66, C67, C68, C69, C70, C71, C86, C108, C109, C110, C111, C112, C113, C114, C129
14100RResistor_SMD:R_0402_1005MetricR12, R16, R18, R19, R20, R21, R22, R23, R34, R35, R44, R84, R87, R92
13100pCapacitor_SMD:C_0402_1005MetricC25, C26, C29, C31, C39, C46, C47, C84, C87, C89, C127, C130, C132
1110kResistor_SMD:R_0402_1005MetricR43, R45, R47, R48, R60, R74, R78, R82, R85, R94, R98
114k7Resistor_SMD:R_0402_1005MetricR7, R8, R10, R11, R17, R25, R26, R76, R96, R112, R113
101k0Resistor_SMD:R_0402_1005MetricR1, R2, R3, R4, R6, R27, R36, R80, R89, R90
105V0Diode_SMD:D_SOD-523D1, D2, D3, D4, D5, D7, D8, D11, D18, D19
94n7Capacitor_SMD:C_0402_1005MetricC54, C79, C80, C81, C82, C122, C123, C124, C125
9TC2-72T+RF_WUT:MiniCircuits_AT1521T1, T2, T3, T4, T5, T6, T7, T8, T9
73V3Diode_SMD:D_SOD-523D6, D9, D10, D12, D15, D16, D22
7GreenLED_SMD:LED_0603_1608MetricLD3, LD4, LD5, LD6, LD7, LD8, LD9
60R0Resistor_SMD:R_0402_1005MetricR14, R15, R24, R33, R99, R100
61uCapacitor_SMD:C_0402_1005MetricC7, C90, C133, C149, C161, C162
6600RInductor_SMD:L_0603_1608MetricFB2, FB3, FB18, FB19, FB27, FB28
66R8Resistor_SMD:R_0402_1005MetricR29, R30, R114, R115, R116, R117
415kResistor_SMD:R_0402_1005MetricR101, R102, R103, R111
422kResistor_SMD:R_0402_1005MetricR41, R70, R72, R83
422uCapacitor_SMD:C_1206_3216MetricC4, C5, C9, C10
447uCapacitor_SMD:C_1206_3216MetricC155, C156, C157, C158
4TPD4E05U06DQADiode_WUT:TPD4E05U06DQAD14, D17, D20, D21
4~TestPoint:TestPoint_Pad_D1.0mmTP1, TP2, TP3, TP4
310RResistor_SMD:R_0402_1005MetricR64, R65, R81
32.7mm NPTHMountingHole:MountingHole_2.7mmLAYOUT1, LAYOUT2, LAYOUT3
32u2Inductor_WUT:Coilcraft_XEL4030L6, L7, L8
3TI TPS79301DBVPackage_TO_SOT_SMD:SOT-23-6U4, U7, U8
2100kResistor_SMD:R_0402_1005MetricR104, R105
210nCapacitor_SMD:C_0402_1005MetricC150, C151
210pCapacitor_SMD:C_0402_1005MetricC159, C160
210uCapacitor_SMD:C_1206_3216MetricC147, C148
2130RResistor_SMD:R_0402_1005MetricR38, R40
213kResistor_SMD:R_0402_1005MetricR42, R73
215pCapacitor_SMD:C_0402_1005MetricC14, C40
2180RResistor_SMD:R_0402_1005MetricR52, R53
218kResistor_SMD:R_0402_1005MetricR88, R93
21u0Inductor_SMD:L_0603_1608MetricL1, L2
220RResistor_SMD:R_0402_1005MetricR61, R63
2220pCapacitor_SMD:C_0402_1005MetricC152, C153
2220uCapacitor_WUT:Wurth_WCAP-HSG5_8x10.5mm_SMC144, C146
2330RResistor_SMD:R_0402_1005MetricR86, R91
247kResistor_SMD:R_0402_1005MetricR95, R110
247pCapacitor_SMD:C_0402_1005MetricC55, C57
256mResistor_SMD:R_1020_2550MetricR106, R107
25k1Resistor_SMD:R_0402_1005MetricR31, R32
25n1Inductor_SMD:L_0402_1005MetricL3, L4
260MHzCrystal:Crystal_SMD_2016-4Pin_2.0x1.6mmXT1, XT2
282RResistor_SMD:R_0402_1005MetricR37, R39
2DMN62D0U-7Package_TO_SOT_SMD:SOT-23Q1, Q2
2LT3045IDD#PBFPackage_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.65x2.38mm_ThermalViasU14, U16
2MMBT2907A-7-FPackage_TO_SOT_SMD:SOT-23Q3, Q4
2RC32504A000GNK#BB0RF_WUT:Renesas_QFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm_ThermalViasU13, U15
2SN74LVC1G125DBVPackage_TO_SOT_SMD:SOT-23-5U3, U9
11-2301994-2Connector_WUT:TE_1-2301994-2CN13
110MHzCrystal:Crystal_SMD_3225-4Pin_3.2x2.5mmOSC1
1120RResistor_SMD:R_0603_1608MetricR5
1120kResistor_SMD:R_0402_1005MetricR97
1140RResistor_SMD:R_0402_1005MetricR51
1150mResistor_SMD:R_0603_1608MetricR28
115VDiode_SMD:D_SOD-323ZD1
1160kResistor_SMD:R_0402_1005MetricR108
11AFuse:Fuse_0603_1608Metric_Pad1.05x0.95mm_HandSolderF1
122pCapacitor_SMD:C_0402_1005MetricC44
130kResistor_SMD:R_0402_1005MetricR109
1475RResistor_SMD:R_0402_1005MetricR46
147nInductor_SMD:L_0402_1005MetricL5
151RResistor_SMD:R_0402_1005MetricR62
1731385033Connector_WUT:BNC_Molex_731385033CN9
17k5Resistor_SMD:R_0402_1005MetricR71
190RInductor_WUT:L_CommonMode_Wurth_WE-CNSW_0805FL1
1Amphenol 86093488613755E1LFConnector_WUT:DIN41612_R_03x16_Receptacle_RA_Amphenol_86093488613755E1LFCN2
1Analog LT8650SEV#PBF IC_WUT:LQFN-32(28)-6EP_6x4mm_P0.5mm_EP1.1x1.33mmU18
1Analog MAX3483ESA+Package_SO:SOIC-8_3.9x4.9mm_P1.27mmU1
1B39162B8389P810RF_WUT:Qualcomm_B8389FL2
1CM4004016Modules_WUT:Raspberry-Pi-4-Compute-ModuleZF1
1CONSMA002-L-G Connector_WUT:SMA_Linx_CONSMA002-L-G_HorizontalCN12
1DS2431P+Package_SO_J-Lead:TSOC-6_3.76x3.94mm_P1.27mmU2
1G***kibuzzard-6592FD48kibuzzard-6592FD48

The 388 most common of 417 parts.

Questions

How big is the Master Timing Card PCB?

It measures 170 × 100 mm and has 4 copper layers, 1.61 mm thick.

What parts does the Master Timing Card use?

417 parts, built around the SN74LVC1G125DBV, MAX3483ESA+T, RC32504A000GNK#BB0 and LT8650SEV#PBF. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Master Timing Card KiCad files?

From the M0WUT/Master-Timing-Reference repository on GitHub, at the commit this page was made from: the board is Master Timing Card/Master Timing Card.kicad_pcb and its schematic Master Timing Card/Master Timing Card.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Master Timing Card design in my own project?

Its repository states no licence, so its author keeps all rights: ask M0WUT before reusing the design.

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