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6 layers55 × 95 mmEcho r1-rev1, the printed circuit board in 3D

Echo - Open Hardware Music Player

Size
55 × 95 mm
Copper layers
6
Thickness
1.05 mm
Parts
154
Nets
211
Pads
805
Tracks, vias
2,428, 507
Pours
44
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
22 Feb 2025
Updated
17 Oct 2026

Overview

Echo r1-rev1 is an open-source printed circuit board by amachronic, from the amachronic/echoplayer repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 6-layer board of 55 × 95 mm with 154 parts on 211 nets, routed with 2,428 tracks and 507 vias.

It is built around the TLV320AIC3104EVM, USB3320C-EZK and SY7200AABC, with the TF-115, LM66100DCK and TP4057 among its other parts. Its parts include 59 capacitors, 31 resistors, 16 diodes, 14 switches and 10 ICs. It belongs with the STM32 boards of this library.

Main components

12

README

README.md

NOTICE

Development has moved to SourceHut.

Parts

154
QtyValueFootprintReferences
32100 nFCapacitor_SMD:C_0402_1005MetricC10, C11, C13, C14, C15, C16, C17, C18, C19, C21, C22, C23, C24, C25, C26, C32 +16
13100 kΩResistor_SMD:R_0402_1005MetricR1, R2, R4, R10, R13, R18, R19, R20, R21, R22, R26, R30, R32
10CESD3V3AP-ESPackage_TO_SOT_SMD:SOT-23D1, D2, D3, D4, D6, D7, D8, D9, D10, D11
510 µFCapacitor_SMD:C_0603_1608MetricC47, C49, C51, C54, C60
51N5819WSDiode_SMD:D_SOD-323D12, D13, D14, D15, D16
54.7 µFCapacitor_SMD:C_0603_1608MetricC5, C8, C29, C57, C58
41 µFCapacitor_SMD:C_0402_1005MetricC6, C7, C12, C20
410 kΩResistor_SMD:R_0402_1005MetricR3, R11, R12, R16
422 µFCapacitor_SMD:C_0805_2012MetricC1, C2, C3, C4
4AO3401APackage_TO_SOT_SMD:SOT-23Q2, Q5, Q6, Q7
4M2_ScrewMountingHole:MountingHole_2.2mm_M2H3, H4, H5, H6
3174 kΩResistor_SMD:R_0603_1608MetricR5, R31, R33
21 µHechoplayer:L_0806_2016MetricL1, L2
210 µFCapacitor_SMD:CP_Elec_4x5.4C55, C56
22.2 kΩResistor_SMD:R_0402_1005MetricR9, R23
22.2 µFCapacitor_SMD:C_0603_1608MetricC33, C34
2390 kΩResistor_SMD:R_0603_1608MetricR7, R34
24 pF/NP0Capacitor_SMD:C_0402_1005MetricC28, C31
25 pF/NP0Capacitor_SMD:C_0402_1005MetricC27, C30
25.1 kΩResistor_SMD:R_0402_1005MetricR14, R15
286.6 kΩResistor_SMD:R_0603_1608MetricR6, R8
2NetTie_2echoplayer:NetTie_0.15mm_SMDNT1, NT2
2TPS62A01DRLRPackage_TO_SOT_SMD:SOT-563U2, U3
11 MΩResistor_SMD:R_0402_1005MetricR25
110 nF/NP0Capacitor_SMD:C_0603_1608MetricC52
110 ΩResistor_SMD:R_0402_1005MetricR24
14.7 µHechoplayer:L_0806_2016MetricL3
18.06 kΩResistor_SMD:R_0402_1005MetricR17
1Aechoplayer:Switch_ContactPad_10x3mm_CrossSW5
1AFD01-S35FCC-00echoplayer:Conn_Jushuo_AFD01-S35FCC-00_RTLJ6
1Bechoplayer:Switch_ContactPad_10x3mm_CrossSW6
1DPAD←echoplayer:Switch_ContactPad_10x3mm_CrossSW3
1DPAD↑echoplayer:Switch_ContactPad_10x3mm_CrossSW1
1DPAD→echoplayer:Switch_ContactPad_10x3mm_CrossSW4
1DPAD↓echoplayer:Switch_ContactPad_10x3mm_CrossSW2
1DPad_PivotMountingHole:MountingHole_4mmH1
1GT-BTP30003-xxxA-16Aechoplayer:Conn_GT-BTP30003-xxxxA-016AJ1
1HOLDechoplayer:Switch_SHOUHAN_MSK12C02-HBSW14
1HP_3.5mmechoplayer:Jack_3.5mm_HCTL_HC-PJ-320A-4P-DJ4
1LM66100DCKPackage_TO_SOT_SMD:Texas_R-PDSO-G6U1
1LO_3.5mmechoplayer:Jack_3.5mm_HCTL_HC-PJ-320A-4P-DJ5
1PESD3V3L2BTPackage_TO_SOT_SMD:SOT-23D5
1PM254-1-06-W-8.5Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_HorizontalJ7
1POWERechoplayer:Switch_XKB_TS-1010-C-ASW9
1SC-32S32.768kHz20PPM12.5pFCrystal:Crystal_SMD_3215-2Pin_3.2x1.5mmY1
1SELECTechoplayer:Switch_XUNPU_TS-1088-ARSW13
1STARTechoplayer:Switch_XUNPU_TS-1088-ARSW12
1STM32H743IGTxPackage_QFP:LQFP-176_24x24mm_P0.5mmU6
1SY7200APackage_TO_SOT_SMD:SOT-23-6U10
1TF-115echoplayer:microSD_XUNPU_TF-115J3
1TLV320AIC3104Package_DFN_QFN:Texas_RHB0032E_VQFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm_ThermalViasU9
1TP4057Package_TO_SOT_SMD:TSOT-23-6U5
1TYPE-C-31-M-12echoplayer:USB_C-Hroparts-TYPE-C-31-M-12J2
1USB3320C-EZKPackage_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm_ThermalViasU8
1VOL+echoplayer:Switch_XKB_TS-1010-C-ASW7
1VOL-echoplayer:Switch_XKB_TS-1010-C-ASW8
1Volume_PivotMountingHole:MountingHole_4mmH2
1W9825G6KH-xPackage_SO:TSOP-II-54_22.2x10.16mm_P0.8mmU7
1Xechoplayer:Switch_ContactPad_10x3mm_CrossSW10
1XC6206P33xMRPackage_TO_SOT_SMD:SOT-23-3U4
1XTM32024000JT00351001Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mmY2
1Yechoplayer:Switch_ContactPad_10x3mm_CrossSW11

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Questions

How big is the Echo r1-rev1 PCB?

It measures 55 × 95 mm and has 6 copper layers, 1.05 mm thick.

What parts does the Echo r1-rev1 use?

154 parts, built around the TLV320AIC3104EVM, USB3320C-EZK, SY7200AABC and TF-115. 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 Echo r1-rev1 KiCad files?

From the amachronic/echoplayer repository on GitHub, at the commit this page was made from: the board is r1-rev1/echo-r1-rev1.kicad_pcb and its schematic r1-rev1.1/audio.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Echo r1-rev1 design in my own project?

Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).