Before
magic-alt·fpga-servo·docs/reviews/layout_entry_repair_2026-10-09/before.kicad_pcb
About the Before PCB
Before is an open source PCB design by magic-alt, published on GitHub. It is a 2-layer board measuring 130 × 95 mm, with 153 components from 69 distinct parts.
Other key parts include the FD6288T, INA241A2ID, ADS8588SIPM, AM26LV32EIPWR and SN74LVC2G08DCUR. By type, the board carries 49 capacitors, 37 resistors, 23 ICs, 8 transistors, 5 connectors and 4 diodes.
It belongs with the robotics & motion designs in this gallery.
From the project
FPGA-based single-axis PMSM/BLDC servo-drive daughterboard for the ALINX AX7010 / Zynq-7000 (2022 board, active PL connector J10).
FPGA-based single-axis PMSM/BLDC servo-drive daughterboard for the ALINX AX7010 / Zynq-7000 (2022 board, active PL connector J10).
新性能目标首选ADI AD7606C-16BSTZ(LCSC C5371769),8通道16位同时采样/1MSPS、0–5V高速模式典型1.7µs相位延迟,建议使用J10的四路DOUT并行串行读取(20MHz下32clk=1.6µs);要新增J10针脚29、30、31的DOUTC、DOUTD及SDI。此选择面向未来3–5kHz及更高电流环,不等于当前硬件已更换:现有KiCad U6及BOM仍是ADS8588SIPM,FPGA原XDC尚没有新增三根真实网线;应在新KiCad与PCB同步ECO中进行替换。详见高速ADC选型与迁移规格、6种真实器件候选及报价币种和可验证的FPGA寄存器/IO分配草案。
Main components on the Before
Before bill of materials (BOM)
153 components, 69 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | FD6288T Fortior | TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 3 | INA241A2ID Texas Instruments | SOIC-8_3.9x4.9mm_P1.27mm | U2, U3, U4 |
| 1 | ADS8588SIPM Texas Instruments | LQFP-64_10x10mm_P0.5mm | U6 |
| 1 | AM26LV32EIPWR Texas Instruments | TSSOP-16_4.4x5mm_P0.65mm | U7 |
| 3 | SN74LVC2G08DCUR Texas Instruments | VSSOP-8_2.3x2mm_P0.5mm | U8, U9, U10 |
| 1 | SN74LVC1G11DCKR Texas Instruments | SOT-363_SC-70-6 | U11 |
| 1 | LM5164DDAR Texas Instruments | TI_SO-PowerPAD-8 | U12 |
| 1 | TPS62163DSGR Texas Instruments | Texas_DSG0008A_WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm | U13 |
| 2 | TLV9024PWR Texas Instruments | TSSOP-14_4.4x5mm_P0.65mm | U15, U16 |
| 1 | LM74502DDFR Texas Instruments | SOT-23-8 | U18 |
| 1 | TPD6E05U06RVZR Texas Instruments | Texas_R-PUSON-N14 | U19 |
| 1 | SN74LVC1G74DCUR SN74LVC1G74 Texas Instruments | VSSOP-8_2.3x2mm_P0.5mm | U20 |
| 1 | SN74LVC1G17DBVR SN74LVC1G17 Texas Instruments | SOT-23-5 | U21 |
| 1 | SN74LVC1G14DBVR SN74LVC1G14 Texas Instruments | SOT-23-5 | U22 |
| 1 | SN74LVC1G11DCKR SN74LVC1G11 Texas Instruments | SOT-363_SC-70-6 | U23 |
| 1 | TPS3808G33DBVR TPS3808G33 Texas Instruments | SOT-23-6 | U24 |
| 1 | TPS3808G50DBVR TPS3808G50 Texas Instruments | SOT-23-6 | U25 |
| 1 | SN74LVC3G17DCUR SN74LVC3G17 Texas Instruments | VSSOP-8_2.3x2mm_P0.5mm | U26 |
| 8 | BSC040N10NS5ATMA1 BSC040N10NS5 Infineon | Infineon_PG-TDSON-8_6.15x5.15mm | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 1 | 321040SG0ABK00A01 AX7010_PL_A JILN(锦凌) | IDC-Header_2x20_P2.54mm_Vertical | J1 |
Show 49 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AX7010_PL_B | IDC-Header_2x20_P2.54mm_Vertical | J2 |
| 1 | 1714971 DC_IN_48V Phoenix Contact | PhoenixContact_MKDS_5_2_9.52mm | J3 |
| 1 | 1714984 MOTOR_UVW Phoenix Contact | PhoenixContact_MKDS_5_3_9.52mm | J4 |
| 1 | 321010SG0ABK00A01 ABZ_DIFF_ENCODER JILN(锦凌) | IDC-Header_2x05_P2.54mm_Vertical | J5 |
| 3 | 0805B474K500NT 1uF FH(风华) | C_0805_2012Metric | CBOOT1, CBOOT2, CBOOT3 |
| 1 | 0456025.ER EXT_FUSE_OR_25A_FUSE Littelfuse | Fuse_2920_7451Metric | F1 |
| 1 | ASMD1812-050 0.5A_PTC_ENCODER_5V JDTfuse(集电通) | Fuse_1812_4532Metric | F2 |
| 2 | C2889049 10k Shiheng | R_0603_1608Metric | NTC1, NTC2 |
| 6 | RS-03K33R0FT 10R FH(风华) | R_0603_1608Metric | RG1, RG2, RG3, RG4, RG5, RG6 |
| 6 | ABD03K1002FT 10k FH(风华) | R_0603_1608Metric | RGS1, RGS2, RGS3, RGS4, RGS5, RGS6 |
| 3 | 650FPR005E 5mR Ohmite | Ohmite_650_4T_P25.40x6.35mm | RSH1, RSH2, RSH3 |
| 3 | UNVERIFIED 120R TBD | R_0603_1608Metric | RT1, RT2, RT3 |
| 1 | UNVERIFIED SMCJ54A TBD | D_SMC | D1 |
| 3 | ES1J | D_SMA | D2, D3, D4 |
| 1 | MSS1246T-683MLC 68uH Coilcraft | L_Coilcraft_MSS1246T-XXX | L1 |
| 1 | 74438356022 2.2uH Wurth Elektronik | L_Wuerth_MAPI-4020 | L2 |
| 2 | EKZN101ELL101MJ20S 100uF NCC(日本贵弥功) | CP_Radial_D10.0mm_P5.00mm | C1, C2 |
| 1 | C212E105J6BC000 1uF Faratronic | C_1210_3225Metric | C3 |
| 1 | C4532C0G2A104JT000N 100nF TDK | C_1210_3225Metric | C4 |
| 1 | 0603B103K101NT 10nF FH(风华) | C_0603_1608Metric | C5 |
| 1 | 0805B224K500NT 220nF FH(风华) | C_0603_1608Metric | C18 |
| 1 | 0805B104K101NT 100nF FH(风华) | C_0603_1608Metric | C19 |
| 2 | 1210B225K101NT 2.2uF FH(风华) | C_1210_3225Metric | C20, C21 |
| 2 | 1210B226K250NT 22uF FH(风华) | C_1210_3225Metric | C22, C23 |
| 1 | 0603B222J500NT 2.2nF FH(风华) | C_0603_1608Metric | C24 |
| 1 | 0603B332J500NT 3.3nF FH(风华) | C_0603_1608Metric | C25 |
| 1 | 0603CG560J500NT 56pF FH(风华) | C_0603_1608Metric | C26 |
| 3 | HGC0805R7106K250NSLJ 10uF Chinocera(华瓷) | C_0805_2012Metric | C30, C60, C61 |
| 1 | CGA0805X7R226M100MT 22uF HRE(芯声) | C_0805_2012Metric | C31 |
| 4 | 0603CG102J101NT 1nF FH(风华) | C_0603_1608Metric | C40, C41, C42, C92 |
| 18 | 0603B104K500NT 100nF FH(风华) | C_0603_1608Metric | C43, C44, C45, C46, C70, C80, C81, C82 +10 |
| 7 | 0603B105K250NT 1uF FH(风华) | C_0603_1608Metric | C62, C63, C64, C65, C66, C67, C68 |
| 1 | CGA1206X7R106K250NT 10uF HRE(芯声) | C_1206_3216Metric | C69 |
| 1 | CGA0805X7R475K250MT 4.7uF HRE(芯声) | C_0805_2012Metric | C71 |
| 2 | PTFR0805B280KP9 280k RESI(开步睿思) | R_0805_2012Metric | R1, R2 |
| 1 | TC0325B3902T5F 39k UNI-ROYAL(厚声) | R_0603_1608Metric | R3 |
| 1 | 0603WAF1003T5E 100k UNI-ROYAL(厚声) | R_0603_1608Metric | R20 |
| 2 | RC0603FR-07453KL 453k YAGEO(国巨) | R_0603_1608Metric | R21, R23 |
| 1 | 0603WAF4992T5E 49.9k UNI-ROYAL(厚声) | R_0603_1608Metric | R22 |
| 1 | UNVERIFIED 100k TBD | R_0603_1608Metric | R32 |
| 3 | RS-03K47R0FT 47R FH(风华) | R_0603_1608Metric | R40, R41, R42 |
| 1 | PTFR0603B8K20P9 10k RESI(开步睿思) | R_0603_1608Metric | R50 |
| 2 | 160k | R_0603_1608Metric | R51, R52 |
| 1 | TD03G2001BT 10k FH(风华) | R_0603_1608Metric | R53 |
| 1 | RS-03K4701FT 4.7k FH(风华) | R_0603_1608Metric | R54 |
| 11 | ABD03K1002FT 10k FH(风华) | R_0603_1608Metric | R55, R80, R81, R82, R83, R84, R85, R86 +3 |
| 7 | RS-03K1003FT 100k FH(风华) | R_0603_1608Metric | R56, R57, R58, R59, R60, R61, R89 |
| 2 | TD03G1002BT 10k FH(风华) | R_0603_1608Metric | R70, R71 |
| 1 | ABD03K1001FT 1k FH(风华) | R_0603_1608Metric | R88 |
Before design files
The KiCad project lives in the magic-alt/fpga-servo repository on GitHub; these links point at the commit this page was built from.
Before: common questions
How big is the Before PCB?
The Before measures 130 × 95 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Before?
153 components, from 69 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 Before design files?
From the magic-alt/fpga-servo repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Before design in my own project?
The repository has no license, so all rights stay with magic-alt. Use it as a reference, and ask the author before reusing the design.
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