Daughterboard
About the Daughterboard PCB
Daughterboard is an open source PCB design by Foosa7, published on GitHub. It is a 4-layer board measuring 51 × 51 mm, with 87 components from 19 distinct parts.
Other key parts include the XTR200, SN74LV165, AT21CS01, REF5030EIDR and AD7193. By type, the board carries 35 resistors, 33 capacitors, 17 ICs, 1 diode and 1 inductor.
From the project
The analog front-end board for Koi 8×8. Eight of these plug into one motherboard over a PCIe-x4 card-edge connector, giving the system 8 boards × 8 channels = 64 independent current sources with voltage readback. Formerly codenamed OuttaQontrol/OuttaControl.
The analog front-end board for Koi 8×8. Eight of these plug into one motherboard over a PCIe-x4 card-edge connector, giving the system 8 boards × 8 channels = 64 independent current sources with voltage readback. Formerly codenamed OuttaQontrol/OuttaControl.
Same top view with an alpha background, for dropping onto slides or into the paper's figures:
Full pricing and part numbers: ../../masterbom.csv`.
Main components on the Daughterboard
Daughterboard bill of materials (BOM)
87 components, 19 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 8 | XTR200 | WSON-10-1EP_2x3mm_P0.5mm_EP0.84x2.4mm | U0, U1, U2, U3, U4, U5, U6, U7 |
| 1 | SN74LV165 | TSSOP-16_4.4x5mm_P0.65mm | U8 |
| 1 | AT21CS01 | SOT-23 | U9 |
| 1 | REF5030EIDR | SOIC-8_3.9x4.9mm_P1.27mm | U10 |
| 1 | AD7193 | TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP3.05x7.56mm | U11 |
| 4 | OPA2333XXDRB OPA2333xxDRB | Texas_S-PVSON-N8 | U13, U14, U15, U16 |
| 1 | DAC80508ZR | WQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U20 |
| 1 | LED | LED_0603_1608Metric | D1 |
| 1 | FCM1608KF-601T05 FerriteBead_0603_1.5A Laird | L_0603_1608Metric | L1 |
| 28 | 100NF 100nF | C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8 +20 |
| 4 | 1UF 1uF | C_0603_1608Metric | C11, C13, C16, C23 |
| 1 | 10UF 10uF | C_0603_1608Metric | C25 |
| 8 | 100K 100k | R_0603_1608Metric | R1, R2, R3, R4, R9, R10, R11, R12 |
| 8 | 20K 20k | R_0603_1608Metric | R5, R6, R7, R8, R13, R14, R15, R16 |
| 1 | 500 | R_0603_1608Metric | R17 |
| 1 | 2.7K 2.7k | R_0603_1608Metric | R18 |
| 8 | 4.7K 4.7k | R_0603_1608Metric | R19, R20, R21, R22, R23, R24, R25, R26 |
| 1 | 10 | R_0603_1608Metric | R27 |
| 8 | 1k | R_0603_1608Metric | R28, R29, R30, R31, R32, R33, R34, R35 |
Daughterboard design files
The KiCad project lives in the Foosa7/koi_8x8 repository on GitHub; these links point at the commit this page was built from.
Daughterboard: common questions
How big is the Daughterboard PCB?
The Daughterboard measures 51 × 51 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Daughterboard?
87 components, from 19 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 Daughterboard design files?
From the Foosa7/koi_8x8 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Daughterboard design in my own project?
The repository has no license, so all rights stay with Foosa7. Use it as a reference, and ask the author before reusing the design.
