FrequencyCounter
About the FrequencyCounter PCB
FrequencyCounter is an open source PCB design by LUMERIIX, published on GitHub. It is a 4-layer board measuring 130 × 90 mm, with 125 components from 57 distinct parts.
Other key parts include the TPS650250, LP3871, MCP4725, NFM18PS and WE-TVS-824011. By type, the board carries 52 capacitors, 35 resistors, 12 ICs, 4 connectors, 4 diodes and 3 inductors.
It belongs with the test & measurement and usb & debug tools designs in this gallery.
From the project
FPGA based frequnecy counter hard- and software repository
VHDL Abstraction VHDL FrequencyCounter Abstraction ### C-Code The C-Code is the Programm Code for the implemented VHDL CPU ZPU or a so called SOC(System-on-a-Chip). The C-Code implements the Protocol for the communication over uart and i2c. The ZPU also controls the entire VHDL Components and handles the data. The Code is obviously written in C and is based on a state-machine. The C-Code is converted in a dualported-RAM (VHDL Component) which is located in the VHDL Project and is connected to the Wishbone-Bus of the ZPU.
Main components on the FrequencyCounter
FrequencyCounter bill of materials (BOM)
125 components, 57 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS650250 | QFN-32-1EP_5x5mm_Pitch0.5mm | U1 |
| 1 | LP3871 | SOT-223-5 | U2 |
| 1 | MCP4725 | SOT-23-6_Handsoldering | U3 |
| 1 | NFM18PS | NFM18PS | U4 |
| 1 | WE-TVS-824011 | SOT-23-5 | U5 |
| 1 | FT2232D | LQFP-48_7x7mm_Pitch0.5mm | U6 |
| 1 | 6MHZ_CRYSTAL 6MHz_Crystal | Crystal_SMD_HC49-SD | U7 |
| 1 | AT93C46DN-SH | SOIC-8_3.9x4.9mm_Pitch1.27mm | U8 |
| 1 | LTC6957-3 | DFN-12-1EP_3x3mm_Pitch0.45mm | U9 |
| 1 | MC12093 | SOIC-8_3.9x4.9mm_Pitch1.27mm | U10 |
| 1 | TX176 tx176 | tx176 | U11 |
| 1 | TLV3501 | SOIC-8-N | U12 |
| 1 | BC846B | SOT-23 | Q1 |
| 1 | HEADER_2X10PF-R2.54 Stiftleiste_2x10Pm_R2.54 | Stiftleiste_2x10Pm_R2.54 | X1 |
| 1 | USB_B | USB_B_liegen_SMD | J1 |
| 3 | CONN_COAXIAL | bncf-horizontal | J2, J3, J4 |
| 8 | 1u | Cap_0603_HandSoldering_1 | C_I2C_1, C_I2C_2, C_JTAG_1, C_JTAG_2, C_RS2232_1, C_RS2232_2, C_TP_1, C_TP_2 |
| 1 | AOCJY1-100MHZ AOCJY1-100MHz | Crystal_smd_4pin_20.8x13.2 | G1 |
| 1 | WBC16-1T | wbc-16-1T | T1 |
| 2 | HSMS-281C-TR1G | SOT-323_SC-70_Handsoldering | V1, V2 |
Show 37 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | xc6slx9_144 | TQFP-144_20x20mm_Pitch0.5mm | xc6slx9_1 |
| 3 | LED | Mini_TopLed_SMD | D1, D2, D11 |
| 1 | BAV99 | SOT-23 | D3 |
| 3 | 2.2U 2.2u | LPS5030 | L1, L2, L3 |
| 9 | 10U 10u | Cap_0603_HandSoldering_1 | C1, C2, C3, C4, C5, C6, C9, C10 +1 |
| 10 | 100N 100n | Cap_0603_HandSoldering_1 | C7, C19, C23, C39, C42, C43, C44, C45 +2 |
| 1 | 1u | Cap_0603_HandSoldering_1 | C8 |
| 13 | 4.7U 4.7u | Cap_0603_HandSoldering_1 | C11, C12, C13, C14, C15, C16, C17, C20 +5 |
| 10 | 0.47U 0.47u | Cap_0603_HandSoldering_1 | C18, C22, C25, C26, C28, C29, C31, C32 +2 |
| 2 | 33N 33n | Cap_0603_HandSoldering_1 | C36, C37 |
| 2 | 27P 27p | Cap_0603_HandSoldering_1 | C40, C41 |
| 1 | 100p | Cap_0603_HandSoldering_1 | C48 |
| 1 | 1n | Cap_0603_HandSoldering_1 | C49 |
| 2 | 100n | Cap_0603_HandSoldering_1 | C50, C52 |
| 1 | 100P 47p | Cap_0603_HandSoldering_1 | C51 |
| 2 | 180K 180k | R_0603_HandSoldering | R1, R4 |
| 2 | 100K 100k | R_0603_HandSoldering | R2, R5 |
| 2 | R | R_0603_HandSoldering | R3, R20 |
| 1 | 20K 20k | R_0603_HandSoldering | R6 |
| 1 | 22K 22k | R_0603_HandSoldering | R7 |
| 3 | 4.7K 4.7k | R_0603_HandSoldering | R8, R9, R11 |
| 2 | 10K 10k | R_0603_HandSoldering | R10, R28 |
| 2 | 1k | R_0603_HandSoldering | R12, R16 |
| 1 | 150K 150k | R_0603_HandSoldering | R13 |
| 3 | 680R | R_0603_HandSoldering | R14, R15, R39 |
| 2 | 680R 2k | R_0603_HandSoldering | R17, R22 |
| 2 | 330R 3.3k | R_0603_HandSoldering | R18, R19 |
| 1 | 100k | R_0603_HandSoldering | R21 |
| 1 | 10k | R_0603_HandSoldering | R23 |
| 1 | 470R | R_0603_HandSoldering | R24 |
| 2 | 27R | R_0603_HandSoldering | R25, R26 |
| 1 | 1.5K 1.5k | R_0603_HandSoldering | R27 |
| 1 | 2.2K 2.2k | R_0603_HandSoldering | R29 |
| 2 | 100R | R_0603_HandSoldering | R30, R33 |
| 1 | 560R | R_0603_HandSoldering | R31 |
| 1 | 47R | R_0603_HandSoldering | R32 |
| 1 | 50R | R_0603_HandSoldering | R34 |
FrequencyCounter design files
The KiCad project lives in the LUMERIIX/FrequencyCounter repository on GitHub; these links point at the commit this page was built from.
FrequencyCounter: common questions
How big is the FrequencyCounter PCB?
The FrequencyCounter measures 130 × 90 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the FrequencyCounter?
125 components, from 57 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 FrequencyCounter design files?
From the LUMERIIX/FrequencyCounter repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the FrequencyCounter design in my own project?
The repository has no license, so all rights stay with LUMERIIX. Use it as a reference, and ask the author before reusing the design.
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