GReX-Telescope/FrontendModuleRF Front End for GReX
GreX Frontend is an open-source printed circuit board by GReX-Telescope, from the GReX-Telescope/FrontendModule repository on GitHub. It is a 4-layer board of 88 × 70 mm with 199 parts on 143 nets, routed with 718 tracks and 952 vias.
It is built around the RP2040, ADL5611ARKZ-R7 and AD8314ARMZ, with the PAT1220-C-3DB-T5, INA3221AIRGVR and IS25LP080D-JBLE-TR among its other parts. Its parts include 88 capacitors, 36 inductors, 26 resistors, 26 ICs and 8 diodes. It belongs with the RP2040 boards of this library.
You'll need:
rustup target add thumbv7em-none-eabihfcargo install justcargo install cross --git https://github.com/cross-rs/crosscargo install probe-rs --features cli,ftdiFor assembly, access the interactive BOM here
Build for the current architecture
just build-cli
just build-cli-pi
The resulting binary is in target/armv7-unknown-linux-musleabihf/release/cli which you can copy to the Pi, chmod +x if you need, and run.
just build-firmware
The resulting binary (elf) is in target/thumbv6m-none-eabi/release/firmware
Using a JLink in CMSIS-DAP mode
just flash-firmware
| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | 100n | Capacitor_SMD:C_0402_1005Metric | C11, C13, C15, C16, C18, C20, C21, C22, C23, C29, C30, C31, C32, C36, C37, C41 +7 |
| 14 | 1u | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5, C7, C9, C10, C17, C19, C33, C40, C54, C61, C74, C78 |
| 9 | 1k | Resistor_SMD:R_0402_1005Metric | R8, R9, R10, R11, R12, R13, R14, R15, R16 |
| 8 | 1.2n | Capacitor_SMD:C_0603_1608Metric | C1, C34, C38, C52, C55, C59, C75, C79 |
| 8 | 68p | Capacitor_SMD:C_0603_1608Metric | C2, C35, C39, C53, C56, C60, C76, C80 |
| 8 | DNP | Capacitor_SMD:C_0402_1005Metric | C66, C67, C68, C83, C84, C85, C86, C88 |
| 6 | ADL5611 | DSA2000:SOT89-HighTemp | U11, U13, U14, U16, U20, U21 |
| 6 | MountingHole_2.2mm_M2_ISO7380_Pad | MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad | H1, H2, H3, H4, H5, H6 |
| 5 | Conn_Coaxial | Library:SMA_Samtec_SMA-J-P-X-ST-EM1_EdgeMount | J1, J4, J5, J6, J7 |
| 4 | 1.3p | Capacitor_SMD:C_0402_1005Metric | C47, C51, C69, C73 |
| 4 | 1000n | Inductor_SMD:L_0402_1005Metric | L8, L9, L24, L25 |
| 4 | 12n | Inductor_SMD:L_0402_1005Metric | L4, L6, L11, L13 |
| 4 | 13n | Inductor_SMD:L_0402_1005Metric | L17, L19, L30, L32 |
| 4 | 16p | Capacitor_SMD:C_0402_1005Metric | C25, C27, C43, C45 |
| 4 | 2.2n | Inductor_SMD:L_0402_1005Metric | L16, L20, L29, L33 |
| 4 | 24n | Inductor_SMD:L_0402_1005Metric | L3, L7, L10, L14 |
| 4 | 43n | Inductor_SMD:L_0402_1005Metric | L2, L23, L35, L36 |
| 4 | 5p | Capacitor_SMD:C_0402_1005Metric | C48, C50, C70, C72 |
| 4 | 8.2p | Capacitor_SMD:C_0402_1005Metric | C24, C28, C42, C46 |
| 4 | 8.7n | Inductor_SMD:L_0402_1005Metric | L15, L21, L28, L34 |
| 4 | RED | LED_SMD:LED_0603_1608Metric | D1, D2, D3, D4 |
| 4 | TC4-19G2 | Library:AT224 | U17, U19, U23, U25 |
| 2 | 1 | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | 1.6 | Capacitor_SMD:C_0402_1005Metric | C49, C71 |
| 2 | 1.8p | Capacitor_SMD:C_0402_1005Metric | C63, C65 |
| 2 | 100 | Resistor_SMD:R_0402_1005Metric | R19, R22 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric | C12, C14 |
| 2 | 226 | Resistor_SMD:R_0402_1005Metric | R23, R25 |
| 2 | 22u | Capacitor_SMD:C_0603_1608Metric | C6, C8 |
| 2 | 24k | Resistor_SMD:R_0402_1005Metric | R2, R4 |
| 2 | 27n | Inductor_SMD:L_0402_1005Metric | L18, L31 |
| 2 | 28 | Resistor_SMD:R_0402_1005Metric | R24, R26 |
| 2 | 3.9p | Capacitor_SMD:C_0402_1005Metric | C26, C44 |
| 2 | 4.7k | Resistor_SMD:R_0402_1005Metric | R17, R18 |
| 2 | 47u | Inductor_SMD:L_0603_1608Metric | L1, L22 |
| 2 | 51n | Inductor_SMD:L_0402_1005Metric | L5, L12 |
| 2 | 68 | Resistor_SMD:R_0402_1005Metric | R20, R21 |
| 2 | 82k | Resistor_SMD:R_0402_1005Metric | R1, R3 |
| 2 | 9.1n | Inductor_SMD:L_0402_1005Metric | L26, L27 |
| 2 | AD8314 | Package_SO:MSOP-8_3x3mm_P0.65mm | U22, U26 |
| 2 | BAT-15-099R | Package_TO_SOT_SMD:SOT-143 | U18, U24 |
| 2 | BLUE | LED_SMD:LED_0603_1608Metric | D7, D8 |
| 2 | GREEN | LED_SMD:LED_0603_1608Metric | D5, D6 |
| 2 | HMC1122 | Package_CSP:LFCSP-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U12, U15 |
| 2 | PAT1220-C-3DB | RF_Converter:RF_Attenuator_Susumu_PAT1220 | U9, U10 |
| 2 | SPX3819M5-L | Package_TO_SOT_SMD:SOT-23-5 | U4, U5 |
| 1 | 0.2 | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 2TJ412000NYGBC | Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm | Y1 |
| 1 | 4p | Capacitor_SMD:C_0402_1005Metric | C64 |
| 1 | AMS1117-5.0 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | DSA_Logo | DSA2000:DSAlogo_letterswhite | U1 |
| 1 | INA3221 | Package_DFN_QFN:Texas_RGV_S-PVQFN-N16_EP2.1x2.1mm | U6 |
| 1 | IS25LP080D-JBLE | Package_SO:SOIC-8_5.275x5.275mm_P1.27mm | U7 |
| 1 | PROG | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J3 |
| 1 | Polyfuse | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U8 |
| 1 | Screw_Terminal_01x04 | Connector_JST:JST_PH_S4B-PH-SM4-TB_1x04-1MP_P2.00mm_Horizontal | J2 |
| 1 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23 | U2 |
It measures 88 × 70 mm and has 4 copper layers, 1.77 mm thick.
199 parts, built around the RP2040, ADL5611ARKZ-R7, AD8314ARMZ and PAT1220-C-3DB-T5. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the GReX-Telescope/FrontendModule repository on GitHub, at the commit this page was made from: the board is hardware/GreX Frontend.kicad_pcb and its schematic hardware/GreX Frontend.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask GReX-Telescope before reusing the design.
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