UDSP
About the UDSP PCB
UDSP is an open source PCB design by ohdsp, published on GitHub under the TAPR-OHL-1.0 license. It is a 4-layer board measuring 50 × 50 mm, with 177 components from 50 distinct parts.
Other key parts include the ADAU1452WBCPZ, M95M01-RMN6TP, TLV1117LV33DCY, NB3L553 and NCP308SNADJT1G. By type, the board carries 79 resistors, 52 capacitors, 20 connectors, 5 ICs, 4 test points and 4 diodes.
From the project
A smaller DSP board supporting ADAU1450, ADAU1451, ADAU1452, ADAU1462, ADAU1466 - open source hardware
Main components on the UDSP
UDSP bill of materials (BOM)
177 components, 50 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ADAU1452WBCPZ | IC-LFCSP72-HANDFIT | U201 |
| 1 | M95M01-RMN6TP | IC_SOIC_8 | U202 |
| 1 | TLV1117LV33DCY | IC-SOT-223 | U301 |
| 1 | NB3L553 | IC_SOIC_8 | U501 |
| 1 | NCP308SNADJT1G | IC-SOT23-6 | U601 |
| 1 | 24M576 | XTAL_3.2x2.5_4PIN | X201 |
| 3 | CONN_4X1 CONN_4x1 | CONN_SIL_4_1MM | P201, P510, P511 |
| 1 | CONN_2x1 | CONN-2WAY-2.54mm-3.81mm-SPACING | P301 |
| 6 | CONN_3X1 CONN_3x1 | CONN_SIL_3_1MM | P401, P402, P506, P507, P508, P509 |
| 8 | CONN_5X1 CONN_5x1 | CONN_SIL_5_1MM | P501, P502, P503, P504, P512, P513, P514, P515 |
| 1 | CONN_02X05 | CONN_DIL_2X5_BOX_1MM | P505 |
| 1 | CONN_2x1 | CONN_SIL_2_1MM | P601 |
| 4 | MNT_HOLE | FID-1MM-3MM | FID301, FID302, FID303, FID304 |
| 1 | CONN_2x1 | CONN_SIL_2_1MM | JP201 |
| 4 | MNT_HOLE | MNT_HOLE_3.2mm | MNT301, MNT302, MNT303, MNT304 |
| 1 | FSMSM | SW_TACT_SMD_FSMSM | SW601 |
| 3 | PIN | TP-1mm | TP201, TP202, TP602 |
| 1 | PIN | TP-TH-1mm | TP502 |
| 1 | NJT4030PT3G | IC-SOT-223 | TR201 |
| 1 | B240A | DIODE-SMA | D301 |
Show 30 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LED 0603 | SMD-0603-LED | D302 |
| 2 | 1N5819HW | DIODE-SOD-123 | D303, D304 |
| 1 | 600R@100MHz | SMD-0805 | L301 |
| 1 | 22U 22u | CAP-SMD-SIZE-B | C201 |
| 22 | 100n | SMD-0603 | C203, C204, C206, C208, C210, C215, C216, C217 +14 |
| 8 | 10N 10n | SMD-0603 | C205, C207, C209, C211, C220, C403, C603, C604 |
| 1 | 5n6 | SMD-0603 | C212 |
| 1 | 150P 150p | SMD-0603 | C213 |
| 1 | 10u | SMD-0805 | C214 |
| 5 | 100P 100p | SMD-0603 | C219, C228, C301, C401, C501 |
| 3 | 10u | SMD-0603 | C221, C231, C232 |
| 2 | 33P 33p | SMD-0603 | C222, C227 |
| 1 | 10u | CAP-SMD-SIZE-B | C302 |
| 1 | 22U 22u | SMD-0805 | C303 |
| 3 | 22u | SMD-0603 | C306, C402, C502 |
| 2 | 10U 10u | SMD-0603 | C310, C601 |
| 1 | 1n | SMD-0603 | C504 |
| 3 | 1K | SMD-0603 | R201, R207, R501 |
| 30 | 22 | SMD-0603 | R202, R208, R209, R210, R211, R212, R213, R216 +22 |
| 17 | 0 | SMD-0603 | R203, R204, R205, R502, R503, R504, R506, R507 +9 |
| 1 | 4k3 | SMD-0603 | R206 |
| 4 | 1 | SMD-0603 | R214, R222, R401, R533 |
| 5 | 10K | SMD-0603 | R217, R220, R223, R405, R602 |
| 4 | N/F | SMD-0603 | R218, R221, R225, R609 |
| 4 | 100 | SMD-0603 | R219, R604, R605, R606 |
| 1 | 47 | SMD-0603 | R301 |
| 1 | 470 | SMD-0603 | R302 |
| 6 | 4K7 | SMD-0603 | R505, R509, R513, R517, R521, R525 |
| 1 | 18K7 | SMD-0603 | R601 |
| 2 | 2K2 | SMD-0603 | R603, R608 |
UDSP design files
The KiCad project lives in the ohdsp/uDSP repository on GitHub; these links point at the commit this page was built from.
UDSP: common questions
How big is the UDSP PCB?
The UDSP measures 50 × 50 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the UDSP?
177 components, from 50 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 UDSP design files?
From the ohdsp/uDSP repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the UDSP design in my own project?
Yes, under the terms of its TAPR-OHL-1.0 license, which ohdsp chose for the repository.