Osa103k
About the Osa103k PCB
Osa103k is an open source PCB design by k3it, published on GitHub. It is a 2-layer board measuring 82.6 × 53 mm, with 267 components from 63 distinct parts.
Other key parts include the AD8009ARZ, AD9288BST-40, AT45DB041D-SU, LP2985-1.8 and XC6SLXN-TQG144. By type, the board carries 112 capacitors, 110 resistors, 14 inductors, 11 ICs, 8 diodes and 6 connectors.
It belongs with the test & measurement and rf & radio designs in this gallery.
From the project
Software Defined Multifunctional Measurment Device - VNA, Oscilloscope, Antenna Analyzer, Signal Generator, etc
- Some years ago, I entered the OSA103 schematic, published by the device's author, into KiCad, and routed and created the PCB. I was able to assemble the device and was in the process of debugging it. It was a personal project undertaken out of pure curiosity and to learn KiCad. Unfortunately, my vision started to deteriorate to the point where troubleshooting a small SMD board was no longer enjoyable, and I ultimately abandoned the project. I am releasing all of the files from the project directory, including the gerbers, in case someone finds them useful.
Main components on the Osa103k
Osa103k bill of materials (BOM)
267 components, 63 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AD8009ARZ | SOIC-8_3.9x4.9mm_Pitch1.27mm | U1 |
| 1 | AD9288BST-40 | LQFP-48_7x7mm_Pitch0.5mm | U2 |
| 1 | AT45DB041D-SU | SOIC-8_3.9x4.9mm_Pitch1.27mm | U3 |
| 1 | LP2985-1.8 | SOT-23-5 | U4 |
| 1 | XC6SLXN-TQG144 | TQFP-144_20x20mm_Pitch0.5mm | U5 |
| 1 | 74LVC1GU04 | SOT-23-5 | U6 |
| 1 | 74LVC2G14 | SOT-23-6 | U7 |
| 1 | TPS60403_DBV_5 | SOT-23-5 | U8 |
| 1 | TPS62200DBV | SOT-23-5 | U9 |
| 1 | LDK130-08_SOT23_SOT353 | SOT-23-5 | U10 |
| 1 | FT232RL | SSOP-28_5.3x10.2mm_Pitch0.65mm | U11 |
| 3 | BC846 | SOT-23 | Q1, Q2, Q3 |
| 1 | VTCXO-14 | Crystal_SMD_SeikoEpson_TSX3225-4pin_3.2x2.5mm | X1 |
| 2 | Conn_Coaxial | Molex_SMA_Jack_Edge_Mount | J1, J2 |
| 2 | Conn_01x03 | Pin_Header_Straight_1x03_Pitch2.54mm | J3, J6 |
| 1 | Conn_01x07 | Pin_Header_Straight_1x07_Pitch2.54mm | J10 |
| 1 | USB_OTG | USB_Micro-B | J12 |
| 1 | 20k | Potentiometer_Trimmer_Vishay_TS53YJ | RV18 |
| 1 | 1k | Potentiometer_Trimmer_Vishay_TS53YJ | RV24 |
| 6 | BAV99 | SOT-23 | D1, D2, D5, D6, D7, D8 |
Show 43 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | red | LED_0805 | D3 |
| 1 | green | LED_0805 | D4 |
| 4 | 560n | Neosid_Inductor_SM-NE29_SMD1008 | L1, L2, L3, L4 |
| 3 | BLM21PG221 | R_0805 | L5, L9, L12 |
| 6 | BLM21AG102 | R_0805 | L6, L7, L8, L11, L13, L14 |
| 1 | 10uH | CDRH3D16 | L10 |
| 24 | 10uF | C_0805 | C1, C6, C10, C13, C24, C33, C40, C42 +16 |
| 6 | 22uF | C_1206 | C2, C71, C76, C78, C81, C84 |
| 4 | 15p | C_0603 | C3, C15, C34, C35 |
| 2 | 470p | C_0805 | C4, C14 |
| 3 | 2.2p | C_0603 | C5, C38, C39 |
| 44 | 1uF | C_0603 | C7, C8, C19, C20, C21, C22, C23, C30 +36 |
| 4 | NI | C_0603 | C9, C16, C17, C54 |
| 15 | 0.1uF | C_0603 | C11, C12, C25, C26, C29, C31, C36, C46 +7 |
| 1 | 3..10p | C_Trimmer_Murata_TZC3 | C18 |
| 2 | 6.2p | C_0603 | C27, C28 |
| 2 | 47p | C_0603 | C103, C105 |
| 4 | 3.6p | C_0805 | C106, C107, C108, C109 |
| 1 | 10nF | C_0603 | C112 |
| 2 | 49.9 1% | R_1206 | R1, R6 |
| 6 | 1 | R_0603 | R2, R3, R35, R78, R79, R80 |
| 3 | 2k 1% | R_0603 | R4, R88, R89 |
| 3 | 10 | R_0603 | R5, R10, R85 |
| 5 | 82 | R_0603 | R7, R8, R15, R16, R71 |
| 5 | 910 | R_0603 | R9, R12, R27, R63, R86 |
| 2 | 270 | R_0603 | R11, R21 |
| 7 | 10k | R_0603 | R13, R49, R62, R69, R72, R90, R91 |
| 1 | 390 | R_0603 | R14 |
| 2 | 20k | R_0603 | R17, R20 |
| 2 | NI | R_0603 | R19, R68 |
| 2 | 200 | R_0603 | R22, R23 |
| 18 | 470 1% | R_0603 | R25, R37, R50, R51, R52, R53, R54, R55 +10 |
| 16 | 240 1% | R_0603 | R26, R30, R31, R34, R38, R39, R40, R41 +8 |
| 2 | 2M | R_0603 | R28, R67 |
| 4 | 5.1k | R_0603 | R29, R75, R76, R82 |
| 1 | 8.2k | R_0603 | R32 |
| 1 | 10nF | C_0603 | R33 |
| 7 | 24.9k 1% | R_0603 | R36, R73, R74, R94, R95, R96, R97 |
| 3 | 15 | R_0603 | R64, R92, R93 |
| 6 | 68 | R_0603 | R66, R70, R77, R83, R84, R87 |
| 1 | 7.5k | R_0603 | R81 |
| 4 | 75k 1% | R_0805 | R98, R99, R100, R101 |
| 7 | 150 | R_Array_Convex_4x0603 | RN1, RN2, RN3, RN4, RN5, RN6, RN7 |
Osa103k design files
The KiCad project lives in the k3it/osa103-mini repository on GitHub; these links point at the commit this page was built from.
Osa103k: common questions
How big is the Osa103k PCB?
The Osa103k measures 82.6 × 53 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Osa103k?
267 components, from 63 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 Osa103k design files?
From the k3it/osa103-mini repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Osa103k design in my own project?
The repository has no license, so all rights stay with k3it. Use it as a reference, and ask the author before reusing the design.
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