Sahs
About the Sahs PCB
Sahs is an open source PCB design by ntua-el20199, published on GitHub. It is a 2-layer board measuring 157 × 71 mm, with 30 components from 17 distinct parts.
Other key parts include the LM324AN, 74HC00N, 74HCT74N and SN74HC14N. By type, the board carries 12 resistors, 5 ICs, 4 diodes, 3 connectors, 3 capacitors and 1 transistor.
From the project
This project encompasses the design, simulation, and documentation of a Phase-Locked Loop (PLL) circuit. It includes PCB layouts created with KiCad and circuit simulations performed with LTSpice.
This project encompasses the design, simulation, and documentation of a Phase-Locked Loop (PLL) circuit. It includes PCB layouts created with KiCad and circuit simulations performed with LTSpice.
PCB/: Contains all KiCad project files related to the Printed Circuit Board (PCB) design of the PLL. PCB/prototype/: KiCad project files for a prototype version of the PLL PCB. PCB/testing/: KiCad project files used for testing purposes. PCB/simulatorkicad/`**: KiCad projects tailored for circuit simulation, integrating SPICE models.
Main components on the Sahs
Sahs bill of materials (BOM)
30 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM324AN | N14 | U1 |
| 1 | 74HC00N | SOT27-1_NEX | U2 |
| 2 | 74HCT74N | SOT27-1_NEX | U3, U6 |
| 1 | SN74HC14N | N14 | U4 |
| 1 | JANTX2N2907A | TO-18TO-206AA_MCH | Q2 |
| 3 | Screw_Terminal_01x02 | TerminalBlock_Altech_AK300-2_P5.00mm | J1, J2, J3 |
| 1 | BS170 | TO-92_Inline | BS170 |
| 1 | 2N2222A | TO-18_STM | CR2 |
| 4 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4 |
| 1 | 1n | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1 |
| 1 | 470n | C_Rect_L7.0mm_W6.0mm_P5.00mm | C2 |
| 1 | 47n | C_Disc_D3.0mm_W1.6mm_P2.50mm | C3 |
| 3 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3 |
| 1 | 56k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 3 | 27k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5, R6, R7 |
| 3 | 33k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8, R9, R10 |
| 2 | 47k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R11, R12 |
Sahs design files
The KiCad project lives in the ntua-el20199/PLL repository on GitHub; these links point at the commit this page was built from.
- LayoutPCB/prototype/sahs.kicad_pcb
- SchematicPCB/prototype/sahs.kicad_sch
Sahs: common questions
How big is the Sahs PCB?
The Sahs measures 157 × 71 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Sahs?
30 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the Sahs design files?
From the ntua-el20199/PLL repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Sahs design in my own project?
The repository has no license, so all rights stay with ntua-el20199. Use it as a reference, and ask the author before reusing the design.
