Quasar Backplane
About the Quasar Backplane PCB
Quasar Backplane is an open source PCB design by petrinm, published on GitHub under the CERN-OHL-W-2.0 license. It is a 6-layer board measuring 104 × 90 mm, with 257 components from 63 distinct parts.
Other key parts include the PI7C9X3G808GP, TPS259261, 74AUC1G08, AT25XE011-XMHN-T and TCA9801. By type, the board carries 115 capacitors, 86 resistors, 22 ICs, 12 diodes, 8 connectors and 6 transistors.
From the project
Hardware design files are disrtributed under CERN Open Hardware Licence Version 2 - Weakly Reciprocal licence.
Main components on the Quasar Backplane
Quasar Backplane bill of materials (BOM)
257 components, 63 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PI7C9X3G808GP | HFCBGA-196_14x14_15.0x15.0mm | U1 |
| 6 | TPS259261 | VSON-10-1EP_3x3mm_P0.5mm_EP1.65x2.4mm_ThermalVias | U2, U6, U7, U8, U9, U11 |
| 1 | 74AUC1G08 | SOT-23-5 | U3 |
| 1 | AT25XE011-XMHN-T | TSSOP-8_4.4x3mm_P0.65mm | U4 |
| 1 | TCA9801 | VSSOP-8_3x3mm_P0.65mm | U5 |
| 3 | LP5907MFX-3.3 | SOT-23-5 | U10, U13, U15 |
| 2 | ADCLK944 | QFN-16-1EP_3x3mm_P0.5mm_EP1.45x1.45mm | U12, U14 |
| 2 | TPSM843620 | Texas_uSIP_SIT0015A | U16, U18 |
| 2 | SI53340-B-GM | QFN-16-1EP_3x3mm_P0.5mm_EP1.75x1.75mm_ThermalVias | U17, U21 |
| 1 | 74AUP1G08 | SOT-23-5 | U19 |
| 1 | TLV74333 | SOT-23-5 | U20 |
| 1 | TLV74318 | SOT-23-5 | U28 |
| 1 | Fan | PinSocket_1x02_P2.54mm_Vertical | M1 |
| 6 | HR8020GS9 | SOT-723 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 1 | Conn_01x03_MountingPin | PinHeader_1x03_P1.27mm_Vertical | J1 |
| 1 | PCIe 6-pin power connector | Molex 35318-0620 | J2 |
| 5 | Bus_PCI_Express_x4 | XKB_X3113WVS-64 | J3, J4, J5, J6, J7 |
| 1 | Oculink_x4_Endpoint | Amphenol_G14A42121B12HR | J8 |
| 1 | Jumper_2_Bridged | SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1 |
| 5 | LED Green | LED_0603_1608Metric | D1, D2, D3, D4, D5 |
Show 43 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 7 | RED LED | LED_0603_1608Metric | D6, D7, D8, D9, D10, D11, D12 |
| 3 | FerriteBead | L_0603_1608Metric | FB1, FB3, FB6 |
| 3 | FerriteBead | L_0402_1005Metric | FB2, FB4, FB5 |
| 2 | 4u7 6.3V | C_0402_1005Metric | C1, C15 |
| 21 | 100n 6.3V | C_0402_1005Metric | C2, C3, C4, C5, C6, C7, C8, C9 +13 |
| 1 | 1u 6.3V | C_0402_1005Metric | C21 |
| 16 | 220n 6.3V | C_0402_1005Metric | C24, C25, C26, C27, C28, C29, C30, C31 +8 |
| 11 | 100n | C_0603_1608Metric | C33, C43, C46, C49, C52, C62, C98, C108 +3 |
| 2 | 100n 16V | C_0603_1608Metric | C41, C42 |
| 13 | 1u | C_0603_1608Metric | C44, C47, C50, C53, C55, C56, C63, C71 +5 |
| 6 | 10n | C_0603_1608Metric | C45, C48, C51, C54, C65, C100 |
| 2 | 1n HiQ | C_0603_1608Metric | C57, C58 |
| 16 | 220n HiQ | C_0402_1005Metric | C59, C60, C64, C66, C67, C68, C69, C70 +8 |
| 6 | 1n HiQ | C_0402_1005Metric | C61, C73, C74, C77, C86, C87 |
| 2 | 885012206126 2u2 16V | C_0603_1608Metric | C88, C101 |
| 1 | 470n 6.3V | C_0402_1005Metric | C90 |
| 1 | 10n | C_0402_1005Metric | C91 |
| 4 | 885012206126 10u 25V | C_0805_2012Metric | C92, C93, C102, C103 |
| 1 | 885012206126 100n 25V | C_0603_1608Metric | C94 |
| 1 | 885012206126 22u 6.3V | C_0603_1608Metric | C95 |
| 6 | 885012206126 100u 20% 6.3V | C_1210_3225Metric | C96, C97, C106, C107, C110, C113 |
| 1 | 100n 25V | C_0603_1608Metric | C104 |
| 1 | 885012206126 22u 6.3V | C_0805_2012Metric | C105 |
| 1 | 100u 10% 25V | CP_Elec_8x6.5 | C112 |
| 7 | 330R 1% | R_0402_1005Metric | R1, R2, R3, R5, R7, R9, R16 |
| 17 | 200R 1% | R_0402_1005Metric | R4, R45, R46, R48, R49, R62, R63, R64 +9 |
| 9 | 0R | R_0603_1608Metric | R6, R8, R10, R12, R13, R15, R34, R35 +1 |
| 1 | 5k1 | R_0603_1608Metric | R11 |
| 1 | 9k 1% | R_0603_1608Metric | R14 |
| 8 | 4k7 1% | R_0402_1005Metric | R17, R18, R20, R21, R22, R23, R82, R83 |
| 1 | 5k1 1% | R_0402_1005Metric | R19 |
| 1 | 330 | R_0402_1005Metric | R24 |
| 7 | 330R 1% | R_0603_1608Metric | R25, R26, R27, R28, R29, R55, R66 |
| 10 | 4k7 1% | R_0603_1608Metric | R30, R31, R32, R33, R59, R70, R72, R79 +2 |
| 5 | 10k | R_0603_1608Metric | R36, R38, R40, R42, R51 |
| 4 | 2k 1% | R_0603_1608Metric | R37, R39, R41, R43 |
| 6 | 10k 1% | R_0603_1608Metric | R44, R50, R54, R61, R68, R71 |
| 2 | 100R 1% | R_0402_1005Metric | R47, R57 |
| 2 | 76k8 1% | R_0603_1608Metric | R52, R69 |
| 1 | 8k2 1% | R_0603_1608Metric | R53 |
| 2 | R | R_0603_1608Metric | R56, R60 |
| 1 | 62k 1% | R_0603_1608Metric | R67 |
| 1 | 0R 1% | R_0402_1005Metric | R84 |
Quasar Backplane design files
The KiCad project lives in the petrinm/QuasarSDR-Hardware repository on GitHub; these links point at the commit this page was built from.
Quasar Backplane: common questions
How big is the Quasar Backplane PCB?
The Quasar Backplane measures 104 × 90 mm, has 6 copper layers and is 0.906 mm thick.
How many components are on the Quasar Backplane?
257 components, from 63 distinct parts. The full bill of materials is listed on this page.
Where can I download the Quasar Backplane design files?
From the petrinm/QuasarSDR-Hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Quasar Backplane design in my own project?
Yes, under the terms of its CERN-OHL-W-2.0 license, which petrinm chose for the repository.
