AsD Preamp Digital Preamplifier
About the AsD Preamp Digital Preamplifier PCB
AsD Preamp Digital Preamplifier is an open source FPGA PCB design by djupdal, published on GitHub. It is a 4-layer board measuring 130 × 140 mm, with 271 components from 85 distinct parts.
Its main chip is the xc7a100tftg256, from the FPGA family. Other key parts include the EFM32GG232F1024, MAX3280E, DIR9001, CS4398 and LM4562. By type, the board carries 153 capacitors, 76 resistors, 19 ICs, 15 connectors, 5 inductors and 2 crystals.
Main components on the AsD Preamp Digital Preamplifier
AsD Preamp Digital Preamplifier bill of materials (BOM)
271 components, 85 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | EFM32GG232F1024 | QFP64 | U1 |
| 1 | MAX3280E | SOT-23-5 | U2 |
| 1 | DIR9001 | TSSOP-28_4.4x9.7mm_Pitch0.65mm | U3 |
| 1 | CS4398 | TSSOP-28_4.4x9.7mm_Pitch0.65mm | U4 |
| 3 | LM4562 | SOIC-8-W | U5, U15, U16 |
| 1 | ENC424J600 | TQFP-44_10x10mm_Pitch0.8mm | U6 |
| 1 | N25Q128A | SOIJ-8_5.3x5.3mm_Pitch1.27mm | U7 |
| 1 | oscillator | OSC_SMD | U8 |
| 1 | xc7a100tftg256 | FTG256 | U9 |
| 1 | LM2937-12 | SOT-223 | U10 |
| 1 | L79L12 | SOT89-3_Housing_Handsoldering | U11 |
| 1 | TPS54325 | TSSOP-14_4.4x5mm_Pitch0.65mm_exposed_pad | U12 |
| 1 | TPS54294 | TSSOP-16-1EP_4.4x5mm_Pitch0.65mm | U13 |
| 1 | L78L05 | SOT89-3_Housing_Handsoldering | U14 |
| 2 | SD103ASDM | SOT-26-6 | U17, U18 |
| 1 | cs5361 | TSSOP-24_4.4x7.8mm_Pitch0.65mm | U19 |
| 1 | 48MHz | XTAL_SMD | X1 |
| 1 | 25MHz | XTAL_SMD | X2 |
| 1 | SD_Card_DM1 | DM1AA-SF-PEJ | P1 |
| 1 | RJ45-MAGJACK | 08B0-1D1T-06-F | P2 |
Show 65 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TOSLINK | PLR135T | P3 |
| 1 | SPDIF | RCA | P4 |
| 1 | PwGnd | Terminal_Block_3_5mm | P5 |
| 1 | GPIO | Pin_Header_Straight_2x04 | P6 |
| 1 | Mute | Pin_Header_Straight_1x02 | P7 |
| 1 | LEDs | Pin_Header_Straight_2x03 | P8 |
| 1 | Volume | Pin_Header_Straight_2x03 | P9 |
| 1 | LIN | Terminal_Block_2_2.5mm | P10 |
| 1 | RIN | Terminal_Block_2_2.5mm | P11 |
| 1 | LOUT | Terminal_Block_2_2.5mm | P12 |
| 1 | ROUT | Terminal_Block_2_2.5mm | P13 |
| 1 | MCU Debug | Pin_Header_Straight_2x10 | P14 |
| 1 | FPGA Debug | FPGA_debug | P15 |
| 1 | S22083 | S22083 | T1 |
| 2 | FERRITE BEAD | R_0805_HandSoldering | L1, L2 |
| 2 | 1.5u | SPM3015 | L4, L5 |
| 1 | 2.2u | SPM3015 | L6 |
| 39 | 100n | C_0603_HandSoldering | C1, C2, C5, C6, C8, C9, C12, C13 +31 |
| 9 | 1u | C_0805_HandSoldering | C3, C110, C113, C131, C132, C143, C145, C149 +1 |
| 4 | 12p | C_0603_HandSoldering | C4, C7, C45, C46 |
| 12 | 10u | C_0805_HandSoldering | C10, C14, C18, C24, C26, C44, C101, C108 +4 |
| 7 | 22u | C_0805_HandSoldering | C11, C99, C100, C122, C123, C124, C125 |
| 1 | 4.7n | C_0603_HandSoldering | C16 |
| 1 | 68n | C_0603_HandSoldering | C19 |
| 5 | 100u | TantalC_SizeB_EIA-3528_HandSoldering | C30, C61, C103, C129, C130 |
| 1 | 33u | C_1210_HandSoldering | C32 |
| 1 | 3.3u | C_0805_HandSoldering | C33 |
| 6 | 1n | C_0603_HandSoldering | C34, C35, C36, C37, C56, C57 |
| 4 | 390p | C_0603_HandSoldering | C38, C39, C40, C41 |
| 2 | 2.2n | C_0603_HandSoldering | C42, C43 |
| 2 | 6.8n | C_0603_HandSoldering | C47, C48 |
| 10 | 10n | C_0603_HandSoldering | C49, C50, C127, C128, C144, C146, C147, C151 +2 |
| 1 | 330u | TantalC_SizeD_EIA-7343_HandSoldering | C60 |
| 4 | 47u | C_1210_HandSoldering | C62, C63, C64, C148 |
| 12 | 4.7u | C_0805_HandSoldering | C65, C67, C68, C69, C71, C72, C73, C76 +4 |
| 21 | 470n | C_0603_HandSoldering | C66, C70, C74, C75, C77, C78, C80, C81 +13 |
| 2 | 22p | C_0603_HandSoldering | C98, C126 |
| 1 | 3.3n | C_0603_HandSoldering | C105 |
| 2 | 330n | C_0603_HandSoldering | C107, C111 |
| 4 | 470p | C_0603_HandSoldering | C133, C134, C135, C136 |
| 2 | 2.7n | C_0603_HandSoldering | C137, C138 |
| 9 | 4.7k | R_0805_HandSoldering | R1, R2, R40, R41, R42, R43, R45, R75 +1 |
| 7 | 91 | R_0805_HandSoldering | R3, R5, R11, R68, R69, R70, R71 |
| 6 | 47k | R_0805_HandSoldering | R4, R6, R12, R14, R16, R72 |
| 4 | 22 | R_0805_HandSoldering | R7, R8, R9, R10 |
| 1 | 75 | R_0805_HandSoldering | R13 |
| 1 | 680 | R_0805_HandSoldering | R15 |
| 4 | 1.96k | R_0805_HandSoldering | R17, R18, R19, R20 |
| 4 | 2.15k | R_0805_HandSoldering | R21, R22, R27, R28 |
| 4 | 953 | R_0805_HandSoldering | R23, R24, R25, R26 |
| 2 | 549 | R_0805_HandSoldering | R29, R30 |
| 7 | 100k | R_0805_HandSoldering | R31, R50, R51, R58, R59, R60, R61 |
| 1 | 12.4k | R_0805_HandSoldering | R32 |
| 4 | 49.9 | R_0805_HandSoldering | R33, R34, R35, R36 |
| 1 | 10 | R_0805_HandSoldering | R37 |
| 2 | 180 | R_0805_HandSoldering | R38, R39 |
| 1 | 330 | R_0805_HandSoldering | R44 |
| 1 | 30.1k | R_0805_HandSoldering | R46 |
| 3 | 22.1k | R_0805_HandSoldering | R47, R49, R53 |
| 1 | 6.81k | R_0805_HandSoldering | R48 |
| 1 | 73.2k | R_0805_HandSoldering | R52 |
| 4 | 3.3k | R_0805_HandSoldering | R54, R55, R56, R57 |
| 6 | 634 | R_0805_HandSoldering | R62, R63, R64, R65, R66, R67 |
| 1 | 10k | R_0805_HandSoldering | R73 |
| 1 | 2.4k | R_0805_HandSoldering | R74 |
AsD Preamp Digital Preamplifier design files
The KiCad project lives in the djupdal/asd-amp repository on GitHub; these links point at the commit this page was built from.
AsD Preamp Digital Preamplifier: common questions
What microcontroller does the AsD Preamp Digital Preamplifier use?
The AsD Preamp Digital Preamplifier is built around the xc7a100tftg256, from the FPGA family.
How big is the AsD Preamp Digital Preamplifier PCB?
The AsD Preamp Digital Preamplifier measures 130 × 140 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the AsD Preamp Digital Preamplifier?
271 components, from 85 distinct parts. The full bill of materials is listed on this page.
Where can I download the AsD Preamp Digital Preamplifier design files?
From the djupdal/asd-amp repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the AsD Preamp Digital Preamplifier design in my own project?
The repository has no license, so all rights stay with djupdal. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the AsD Preamp Digital Preamplifier without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug FPGA firmware against it before you order a PCB.
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