Uberamp1
About the Uberamp1 PCB
Uberamp1 is an open source ESP32 PCB design by DeepSOIC, published on GitHub. It is a 2-layer board measuring 130 × 82 mm, with 520 components from 99 distinct parts.
Its main chip is the ESP32-WROOM-32E-N16, from the ESP32 family. Other key parts include the TPA3255DDVR, OPA1642, OPA1642AIDR, AK4454VN and ua78l05acpke6. By type, the board carries 237 resistors, 154 capacitors, 32 ICs, 24 diodes, 10 inductors and 9 connectors.
It belongs with the iot & wireless and audio designs in this gallery.
From the project
8-channel tpa3255 amp with dsp (adau1701) and bluetooth (esp32)
output channels: 8 independent() single-ended power outputs (TPA3255) + 2 headphone-amplified output channels + 2 non-amplified adau1701 dacs independent 8 single-ended outputs can be arbitrarily combined into btl or even 3-phase-like arrangements. BTL protections of the tpa chip can be enabled with solder bridges on the board two tpa3255 amps with full coverage of their supply range and peak output current() easy-to-program yet flexible adau1701 dsp chip, with self-boot memory on the board low-noise AK4454 dacs allow to use the full 113db() of dynamic range of the TPA3255 2 "feedbass"…
Main components on the Uberamp1
Uberamp1 bill of materials (BOM)
520 components, 99 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | TPA3255DDVR TPA3255 | tssop44-powerpad | IC1, IC2 |
| 6 | OPA1642 | SOIC-8 | U1, U2, U3, U4, U5, U6 |
| 2 | OPA1642AIDR OPA1642 | SOIC-8 | U7, U8 |
| 2 | AK4454VN AK4454 | QFN-8p8p-5x5mm | U9, U14 |
| 2 | ua78l05acpke6 L78L05_SOT89 | SOT-89-3 | U10, U13 |
| 4 | NE5532DR OPA1642 | SOIC-8 | U11, U12, U16, U17 |
| 1 | OPA2322AIDR OPA2322 | SOIC-8 | U15 |
| 2 | LMR36520 | SOIC-8-ppad | U18, U19 |
| 1 | L7812CV LM7812_TO220 | TO-220-3_Vertical | U20 |
| 1 | KC2016K24.5760C10E00 24.576MHz | K2016_kyocera_xosc | U21 |
| 1 | adau1701 ADAU1701 | LQFP-48_adi | U22 |
| 2 | MC33275ST-3.3 MC33275 | SOT-223-3_TabPin2 | U23, U24 |
| 1 | tps3824-50 | SOT-23-5 | U25 |
| 1 | ESP32-WROOM-32E-N16 ESP32-WROOM-32D | ESP32-WROOM-32D | U26 |
| 1 | SN74LV4040ARGYR 4040 | texas_R-PVQFN-N16 | U27 |
| 1 | LMZM23601V3SILR LMZM23601 | LMZM23601 | U28 |
| 1 | MAX97220B max97220 | qfn_4p4p_3x3mm | U29 |
| 1 | M24128-**DW M24128 (128kbit) | TSSOP-8_STM | U30 |
| 1 | MMBT2907A Q_PNP_BCE | SOT23-3_PO123 | Q1 |
| 2 | Q_NPN_BCE | SOT23-3_PO123 | Q2, Q3 |
Show 79 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | Conn_Coaxial | mmcx_f_vert | J2, J9 |
| 1 | BM03B-GHS-TBT pots | JST_GH_BM06B-GHS-TBT_1x06-1MP_P1.25mm_Vertical | J3 |
| 1 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | extra_input | JST_GH_BM05B-GHS-TBT_1x05-1MP_P1.25mm_Vertical | J5 |
| 2 | AudioJack4 | Jack_3.5mm_PJ320D_Horizontal | J6, J8 |
| 1 | BM03B-GHS-TBT serial | JST_GH_BM06B-GHS-TBT_1x06-1MP_P1.25mm_Vertical | J7 |
| 1 | Conn_XT_Sink | AMASS_XT30U-M_1x02_P5.0mm_Vertical | J10 |
| 38 | 10u | C_0603 | CR0, CR1, CRB0, CRB1, CRD0, CRD1, CRD2, CRD3 +30 |
| 2 | 1u | C_0603 | CU10, CU13 |
| 1 | GRM21BD72A225ME1L 2.2uF 100V | C_0805_2012Metric | CU18_0 |
| 1 | TCTAL1C336M8R 33uF 16V | C_1206_pol | CU18_2 |
| 2 | TC33X-2-103E 10k | TC33X-2 trimpot | RV1, RV2 |
| 2 | PV37X202C01B00 2k | PV37X | RV3, RV4 |
| 1 | ref | pad_1.2x1.5 | s45 |
| 2 | clipping | D_0805 | LED1, LED4 |
| 2 | fault | D_0805 | LED2, LED3 |
| 16 | RBR1VWM60ATR D_Schottky | D_0805 | D1, D2, D3, D4, D5, D6, D7, D8 +8 |
| 2 | P1CH7.0A-AU_R1_000A1 12Vbr | D_SOD-323 | D17, D23 |
| 1 | blue/white | D_0805 | D18 |
| 4 | ESD5B5V0WT 5V | D_SOD-523_bidi | D19, D20, D21, D22 |
| 1 | 824520511 51V (60Vbr) | D_SMB | D24 |
| 8 | SPM12565VT-100M-D 10uH 14A | SPM12565VT-D-vertical | L1, L2, L3, L4, L5, L6, L7, L8 |
| 1 | SPM6545VT-330M-D 33uH 3A | SPM6545_horz | L9 |
| 1 | ECS-MPI4040R2-100-R 10uH 3A | ECS_MPI4040 | L10 |
| 38 | 10u | C_0603 | C1, C2, C13, C15, C16, C17, C18, C37 +30 |
| 11 | 1u | C_0603 | C3, C9, C12, C14, C42, C43, C45, C50 +3 |
| 2 | 100p | C_0603 | C4, C39 |
| 8 | 4.7n | C_0603 | C5, C6, C7, C8, C35, C36, C40, C41 |
| 4 | 2.2u | C_0603 | C10, C11, C51, C52 |
| 8 | 33n | C_0603 | C19, C20, C21, C22, C54, C55, C57, C58 |
| 8 | CL32B106KMVNNWE 10u 63V | C_1210_3225Metric | C23, C24, C25, C26, C53, C56, C59, C60 |
| 8 | CB052D0105KBC 1uF 63V | CB052D0105KBC film cap | C27, C28, C29, C30, C61, C62, C63, C64 |
| 8 | C0603X103K2RECTU 10nF 63V | C_0603 | C31, C32, C33, C34, C65, C66, C67, C68 |
| 2 | tbd | C_0805_2012Metric | C69, C74 |
| 2 | 1nF | C_0805_2012Metric | C70, C75 |
| 2 | 100nF | C_0603 | C71, C73 |
| 2 | FCA1206C334M-H2 0.33uF | C_1206_3216Metric | C72, C76 |
| 4 | A759EK477M0JAAE016 470uF 6.3V | CP_Radial_D8.0mm_P3.50mm | C80, C81, C105, C110 |
| 8 | GCM1885C1H392GA16D 3.9n | C_0603 | C84, C85, C87, C89, C111, C112, C117, C118 |
| 16 | VJ0603A471GXXCW1BC 470pF | C_0603 | C86, C88, C90, C91, C92, C93, C94, C95 +8 |
| 4 | 100n | C_0603 | C123, C126, C144, C156 |
| 2 | 1uF | C_0603 | C124, C125 |
| 4 | URZ1J221MHD1TO 220uF 65V | CP_Radial_D12.5mm_P5.00mm | C127, C128, C132, C162 |
| 4 | TCTAL1C336M8R 33uF 16V | C_1206_pol | C129, C130, C131, C142 |
| 1 | 3.3n | C_0603 | C138 |
| 1 | 56n | C_0603 | C139 |
| 1 | 22p | C_0603 | C140 |
| 2 | 3n3 | C_0603 | C145, C148 |
| 4 | 5.6n | C_0603 | C158, C159, C160, C161 |
| 40 | RT0603DRD073K6L t2k | R_0603 | R1, R3, R4, R5, R53, R54, R55, R56 +32 |
| 12 | t2k | R_0603 | R2, R6, R63, R64, R71, R72, R82, R83 +4 |
| 4 | 2.7K | R_0603 | R7, R8, R37, R43 |
| 5 | 47k | R_0603 | R9, R19, R35, R46, R182 |
| 23 | 100 | R_0603 | R10, R34, R75, R100, R130, R131, R132, R133 +15 |
| 8 | t330 | R_0603 | R11, R12, R13, R14, R30, R31, R39, R40 |
| 8 | t10k | R_0603 | R15, R16, R17, R18, R32, R33, R41, R42 |
| 4 | 4.7k | R_0603 | R20, R21, R47, R48 |
| 12 | 3.3 | R_0603 | R22, R23, R26, R27, R28, R29, R44, R45 +4 |
| 2 | 27k | R_0603 | R24, R36 |
| 4 | 30k | R_0603 | R25, R38, R73, R101 |
| 2 | 240 | R_0603 | R74, R102 |
| 3 | 10 | R_0603 | R105, R156, R239 |
| 16 | RT0603DRE074K32L t4.32k | R_0603 | R106, R107, R112, R113, R118, R119, R120, R121 +8 |
| 16 | RT0603DRE076K8L t3.6k | R_0603 | R108, R111, R116, R117, R126, R127, R128, R129 +8 |
| 16 | RT0603DRD07150RL 150 | R_0603 | R109, R110, R114, R115, R122, R123, R124, R125 +8 |
| 30 | 10k | R_0603 | R134, R135, R136, R137, R138, R139, R140, R141 +22 |
| 2 | 3.3k | R_0603 | R181, R188 |
| 1 | 51k | R_0603 | R183 |
| 6 | 1k | R_0603 | R185, R203, R204, R211, R227, R236 |
| 1 | 475 | R_0603 | R186 |
| 1 | 7.5k | R_0603 | R187 |
| 5 | RT0603DRD0718KL t18k | R_0603 | R190, R224, R225, R231, R232 |
| 1 | 330k | R_0603 | R191 |
| 1 | 1000 | R_0603 | R196 |
| 2 | RT0603DRE076K8L t6.8k | R_0603 | R201, R206 |
| 2 | t1k | R_0603 | R202, R205 |
| 4 | t470 | R_0603 | R223, R233, R237, R238 |
| 2 | t560 | R_0603 | R226, R229 |
| 4 | t4.7k | R_0603 | R228, R230, R234, R235 |
Uberamp1 design files
The KiCad project lives in the DeepSOIC/uberamp1 repository on GitHub; these links point at the commit this page was built from.
- Layoutuberamp1.kicad_pcb
- Schematicuberamp1.kicad_sch
Uberamp1: common questions
What microcontroller does the Uberamp1 use?
The Uberamp1 is built around the ESP32-WROOM-32E-N16, from the ESP32 family.
How big is the Uberamp1 PCB?
The Uberamp1 measures 130 × 82 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Uberamp1?
520 components, from 99 distinct parts. The full bill of materials is listed on this page.
Where can I download the Uberamp1 design files?
From the DeepSOIC/uberamp1 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Uberamp1 design in my own project?
The repository has no license, so all rights stay with DeepSOIC. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Uberamp1 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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