Qsd2
About the Qsd2 PCB
Qsd2 is an open source PCB design by Greg-R, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 100 × 75 mm, with 68 components from 28 distinct parts.
Other key parts include the SN74LVC1G14DBV, SN74CBT3253, MC74LCX74DR2G, AD8226ARZ-R7 and AP7343. By type, the board carries 31 capacitors, 20 resistors, 10 ICs, 5 connectors and 1 test point.
From the project
The documentation for this design is located here:
Main components on the Qsd2
Qsd2 bill of materials (BOM)
68 components, 28 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | SN74LVC1G14DBV | SOT-23-5 | U1, U2, U11 |
| 1 | SN74CBT3253 | SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | MC74LCX74DR2G | SOIC-14_3.9x8.7mm_P1.27mm | U4 |
| 2 | AD8226ARZ-R7 | R_8_ADI | U5, U6 |
| 1 | AP7343 | SOT-23-5 | U7 |
| 1 | UA78M05IDCYR | DCY0004A_N | U9 |
| 1 | GALI-39 | SOT-89-3 | U10 |
| 2 | 5-1814832-1 TE Connectivity AMP Connectors | RF_SMA_Vertical_5-1814832-1 | J1, J2 |
| 1 | Conn_02x08_Odd_Even | IDC-Header_2x08_P2.54mm_Vertical | J3 |
| 1 | SJ-3524-SMT | CUI_SJ-3524-SMT | J4 |
| 1 | B4B-XH-A(LF)(SN) B4B-XH-A_LF__SN_ JST Sales America Inc. | PinHeader_1x4_P2.5mm_Drill1.1mm | J5 |
| 1 | TestPoint | PinHeader_1x01_P2.54mm_Vertical | TP3 |
| 1 | ADT4-6T+ | Mini-Circuits_CD637_H5.23mm | TR1 |
| 12 | 0.1uF | C_1206_3216Metric | C1, C3, C5, C6, C8, C10, C11, C22 +4 |
| 2 | 0.01uF | C_1206_3216Metric | C2, C32 |
| 4 | 10uF | C_1206_3216Metric | C4, C7, C29, C30 |
| 2 | 2200pF | C_1206_3216Metric | C12, C14 |
| 5 | 1uF | C_1206_3216Metric | C15, C23, C24, C26, C27 |
| 4 | 470pF | C_1206_3216Metric | C16, C17, C18, C19 |
| 2 | DNP | C_1206_3216Metric | C20, C21 |
Show 8 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 270 | R_1206_3216Metric | R1, R2, R3 |
| 2 | 20 | R_1206_3216Metric | R4, R6 |
| 3 | 1k | R_1206_3216Metric | R5, R7, R28 |
| 2 | 4.7k | R_1206_3216Metric | R8, R17 |
| 6 | 100 | R_1206_3216Metric | R9, R10, R11, R12, R13, R14 |
| 1 | 2k | R_1206_3216Metric | R15 |
| 1 | 2.2k | R_1206_3216Metric | R18 |
| 2 | 10k | R_1206_3216Metric | R23, R24 |
Qsd2 design files
The KiCad project lives in the Greg-R/qsd2 repository on GitHub; these links point at the commit this page was built from.
- Layoutqsd2.kicad_pcb
- Schematicqsd2.kicad_sch
Qsd2: common questions
How big is the Qsd2 PCB?
The Qsd2 measures 100 × 75 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Qsd2?
68 components, from 28 distinct parts. The full bill of materials is listed on this page.
Where can I download the Qsd2 design files?
From the Greg-R/qsd2 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Qsd2 design in my own project?
Yes, under the terms of its GPL-3.0 license, which Greg-R chose for the repository.