Rf switchboard
About the Rf switchboard PCB
Rf switchboard is an open source RP2040/RP2350 PCB design by Erhannis, published on GitHub. It is a 4-layer board measuring 100 × 174.6 mm, with 463 components from 120 distinct parts.
Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the SN74CBT3253, GVA-63, BWU.FL-IPEX1, LM4562 and ZTS6117H. By type, the board carries 163 ICs, 92 capacitors, 67 connectors, 53 resistors, 46 inductors and 8 diodes.
It belongs with the audio designs in this gallery.
From the project
KiCAD pcb; whole heap of rf-related modules so I can figure out what works and how.
KiCAD pcb; whole bunch of RF-related modules, so I can figure out what works and how. I'm a novice, don't trust my boards too hard.
Contains: 1x RP2040 with breakout headers 1x Micro-USB connector for 5V, 3V, and programming the RP2040 2x Tayloe Detectors (1x variable gain) 3x Ferrite feedthroughs (various ends) 2x 50Ω Loads 4x Shorts Several inductors, assorted Several capacitors, assorted 2x Headphone jacks 2x Amplifiers (1x variable gain) 1x 50MHz high pass filter 1x 800KHz high pass filter 1x 1MHz low pass filter 2x (1-10)MHz band pass filter (two arrangements) 5x LEDs, different colors…
Main components on the Rf switchboard
Rf switchboard bill of materials (BOM)
463 components, 120 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RP2040 RP2040 | QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 4 | SN74CBT3253 SN74CBT3253CPWR | TSSOP-16_4.4x5mm_P0.65mm | U1_DM1, U1_DM2, U1_TD1, U1_TDV1 |
| 1 | GVA-63 GVA-63+ | SOT-89-3 | U1_HA1 |
| 16 | BWU.FL-IPEX1 BWU.FL-IPEX1 | IPEX-SMD_BWIPX-1-001E | U1_JU1, U1_JU2, U1_JU3, U1_JU4, U2_JU1, U2_JU2, U2_JU3, U2_JU4 +8 |
| 3 | LM4562 LM4562MAX/NOPB | SOIC-8_3.9x4.9mm_P1.27mm | U1_LA1, U2_TD1, U2_TDV1 |
| 2 | ZTS6117H ZTS6117H | MIC-SMD_4P-L2.8-W1.9-P1.84-TL_ZTS6117 | U1_MIC1, U1_MIC2 |
| 2 | OPA320AIDBVR OPA320AIDBVR | SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR | U1_PR1, U1_PRH1 |
| 1 | Si5351A-B-GT SI5351A-B-GTR | MSOP-10_3x3mm_P0.5mm | U1_SI5351AB1 |
| 124 | BWU.FL-IPEX1 BWU.FL-IPEX1 | IPEX-SMD_BWIPX-1-001E | U2, U6, U7, U8, U9, U10, U11, U12 +116 |
| 1 | USBLC6-2P6 USBLC6-2P6 | SOT-666 | U3 |
| 1 | W25Q128JVS W25Q128JVSIQ | SOIC-8_5.23x5.23mm_P1.27mm | U4 |
| 1 | AP2112K-3.3 AP2112K-3.3TRG1 | SOT-23-5 | U5 |
| 3 | PE4140B-Z PE4140B-Z | DFN-6_L3.0-W3.0-P0.95-BL-EP-PE4140B-Z | U46, U73, U80 |
| 3 | ETC1.6-4-2-3TR ETC1.6-4-2-3TR | FILTER-SMD_ETC4-1-2TR | U71, U75, U76 |
| 1 | MOT13003D MOT13003D | TO-252-3_L6.5-W5.9-P4.60-LS10.0-BL | Q1_CCV1 |
| 2 | BSD235C CJ3439KDW | SOT-363_SC-70-6 | Q1_FET1, Q1_FET2 |
| 1 | SS8050 SS8050(RANGE:200-350) | SOT-23-3 | Q2_CCV1 |
| 3 | ADT1-1+ ADT1-1+ | XFMR-SMD_6P-L7.9-W5.6-P2.54-LS7.0-BL | X1, X2, X3 |
| 1 | 27MHz S3227000101040 | OSC-SMD_4P-L3.2-W2.5-BL | X1_SI5351AB1 |
| 1 | 12MHZ 12MHz X322512MSB4SI | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
Show 100 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CONN_01X03_PIN Conn_01x03_Pin 12251103CNG0S115001 | PinHeader_1x03_P2.54mm_Vertical | J1 |
| 6 | Conn_01x03_Pin PZ254V-11-03P | PinHeader_1x03_P2.54mm_Vertical | J1_3S1, J1_3S2, J1_3S3, J1_3S4, J1_DM2, J1_VARB1 |
| 2 | Conn_01x04_Pin PZ254V-11-04P | PinHeader_1x04_P2.54mm_Vertical | J1_CCV1, J1_DM1 |
| 29 | BWU.FL-IPEX1 BWU.FL-IPEX1 | IPEX-SMD_BWIPX-1-001E | J1_HP1, J1_HP2, J1_LAS1, J1_LAS2, J1_LEDS1, J1_LEDS2, J1_LP1, J2_DM1 +21 |
| 8 | Conn_01x02_Pin MTP125-1102S1 | PinHeader_1x02_P2.54mm_Vertical | J1_LA1, J1_MIC1, J1_MIC2, J1_PR1, J1_PRH1, J1_SS1, J1_SS2, J1_SS3 |
| 2 | CONN_01X04_PIN Conn_01x04_Pin PZ254V-11-04P | PinHeader_1x04_P2.54mm_Vertical | J2, J18 |
| 2 | Conn_01x01_Pin 2.54-1*1P | PinHeader_1x01_P2.54mm_Vertical | J2_LAS1, J2_LAS2 |
| 3 | CONN_01X05_PIN Conn_01x05_Pin HB-PH3-25415PB2GOP | PinHeader_1x05_P2.54mm_Vertical | J3, J4, J5 |
| 1 | Conn_01x05_Pin HB-PH3-25415PB2GOP | PinHeader_1x05_P2.54mm_Vertical | J4_DM1 |
| 4 | CONN_02X04_COUNTER_CLOCKWISE Conn_02x04_Counter_Clockwise MTP125-1204S1 | PinHeader_2x04_P2.54mm_Vertical | J6, J7, J8, J9 |
| 5 | CONN_01X02_PIN Conn_01x02_Pin MTP125-1102S1 | PinHeader_1x02_P2.54mm_Vertical | J10, J11, J15, J16, J19 |
| 2 | PJ-320B PJ-320B | AUDIO-SMD_PJ-320B | J12, J13 |
| 1 | CONN_02X07_ODD_EVEN Conn_02x07_Odd_Even 2.54-2*7P | PinHeader_2x07_P2.54mm_Vertical | J14 |
| 1 | CONN_02X05_ODD_EVEN Conn_02x05_Odd_Even PZ254V-12-10P | PinHeader_2x05_P2.54mm_Vertical | J17 |
| 6 | BWU.FL-IPEX1 BWU.FL-IPEX1 | IPEX-SMD_BWIPX-1-001E | JI1_LA1, JI2_LA1, JO1_LA1, JO1_PR1, JO1_PRH1, JO2_LA1 |
| 2 | Conn_01x03_Pin 12251103CNG0S115001 | PinHeader_1x03_P2.54mm_Vertical | JN1_FET1, JN1_FET2 |
| 2 | Conn_01x03_Pin 12251103CNG0S115001 | PinHeader_1x03_P2.54mm_Vertical | JP1_FET1, JP1_FET2 |
| 1 | LM27313XMF MT3540 | SOT-23-5 | POW1_VARB1 |
| 1 | USB_B_Micro U254-051T-4BH83-S1S | USB_Micro-B_XKB_U254-051T-4BH83-F1S | RP_USB1 |
| 1 | 100k R_Potentiometer VG039NCHXTB104 | Potentiometer_Bourns_3314J_Vertical | RV1_VARB1 |
| 1 | GSPK1304S-8R0.5W | BUZ-SMD_4P-L13.0-W13.0-P11.4-BL | SPK1 |
| 4 | K2-1157SP-I4SW-04 K2-1157SP-I4SW-01 | SW-SMD_4P-L6.2-W6.2-P4.50-LS8.6 | SW1_SS1, SW1_SS2, SW1_SS3, SW2_SS1 |
| 1 | 3362P-1-101LF 3362P-1-101LF | RES-ADJ-TH_3362P-1-104LF | VR1_CCV1 |
| 2 | 500k 3313J-1-504E | RES-ADJ-SMD_3313J-1 | VR1_LA1, VR2_LA1 |
| 2 | 2M 3313J-1-205E | RES-ADJ-SMD_3313J-1 | VR1_PR1, VR1_PRH1 |
| 2 | BPW_34_S-Z BPW34S-Z | LED_2-SMD_Gull_Wing_4.4x3.85mm | PV1_PR1, PV1_PRH1 |
| 1 | GH05035A2G GH05035A2G | OPTO-TH_GH05035A2G | D1_LAS1 |
| 1 | GH04580A2GX GH04580A2GX | LED-TH_3P-BD5.6-P1.00 | D1_LAS2 |
| 1 | Red XL-1608SURC-06 | LED_0603_1608Metric | D1_LEDS1 |
| 1 | Purple XL-1608UVC-04 | LED_0603_1608Metric | D1_LEDS2 |
| 1 | D_Schottky RB161QS-40T18R | D_0402_1005Metric | D1_VARB1 |
| 1 | Green XL-1608SYGC-06 | LED_0603_1608Metric | D2_LEDS1 |
| 1 | Blue XL-1608UBC-04 | LED_0603_1608Metric | D3_LEDS1 |
| 1 | White XL-1608UWC-04 | LED_0603_1608Metric | D4_LEDS1 |
| 14 | C85840 FerriteBead BLM21PG221SN1D | L_0805_2012Metric | FB1, FB2, FB3, FB4, FB5, FB6, FB7, FB8 +6 |
| 2 | 4.7NH 4.7nH VHF160808H4N7ST | L_0603_1608Metric | L1, L2 |
| 4 | 11.59uH MLF1608E120JTD25 | L_0603_1608Metric | L1_1_10_5B1, L1_1_10_5B2, L5_1_10_5B1, L5_1_10_5B2 |
| 1 | 33uH YWLD1608-330K | L_0603_1608Metric | L1_HA1 |
| 2 | 10uH VHF160808HR12JT | L_0603_1608Metric | L1_HP1, L2_HP1 |
| 2 | 7.5uH FHW0805UF7R5JST | L_0805_2012Metric | L1_HP2, L2_HP2 |
| 2 | 10uH SDFL2012S100KTF | L_0805_2012Metric | L1_LP1, L2_LP1 |
| 1 | L 10uH CPY201212T-100M-NP | L_0805_2012Metric | L1_VARB1 |
| 4 | 1.431uH MLF1608A1R5JT000 | L_0603_1608Metric | L2_1_10_5B1, L2_1_10_5B2, L4_1_10_5B1, L4_1_10_5B2 |
| 4 | 1NH 1nH SDCL1608C1N0STDF | L_0603_1608Metric | L3, L4, L5, L6 |
| 2 | 3.581uH FHW0603UF3R3JST | L_0603_1608Metric | L3_1_10_5B1, L3_1_10_5B2 |
| 4 | 1UH 1uH YL160808-1R0K | L_0603_1608Metric | L7, L8, L11, L12 |
| 4 | 1MH 1mH CD43YP0403-102M | L_Ferrocore_DLG-0403 | L9, L10, L13, L14 |
| 2 | 10UF 10uF CL21A106KOQNNNE | C_0805_2012Metric | C1, C2 |
| 4 | 218.6pF CC0603JRNPO9BN221 | C_0603_1608Metric | C1_1_10_5B1, C1_1_10_5B2, C5_1_10_5B1, C5_1_10_5B2 |
| 3 | C CL05A106MP5NUNC | C_0402_1005Metric | C1_HA1, C2_HA1, C3_HA1 |
| 1 | 56pF CC0603JRNPO9BN560 | C_0603_1608Metric | C1_HP1 |
| 4 | 3.6nF 0603B362K500NT | C_0603_1608Metric | C1_HP2, C1_LP1, C3_HP2, C3_LP1 |
| 2 | 27pF 0402CG270J500NT | C_0402_1005Metric | C1_LA1, C2_LA1 |
| 2 | 10uF CL05A106MP5NUNC | C_0402_1005Metric | C1_MIC1, C1_MIC2 |
| 2 | 3.3pF 0402CG3R3C500NT | C_0402_1005Metric | C1_PR1, C1_PRH1 |
| 8 | 220nF 0402X224J100CT | C_0402_1005Metric | C1_TD1, C1_TDV1, C2_TD1, C2_TDV1, C3_TD1, C3_TDV1, C4_TD1, C4_TDV1 |
| 2 | 10uF GRM188R6YA106MA73D | C_0603_1608Metric | C1_VARB1, C2_VARB1 |
| 4 | 1.771nF CL10C182JB8NNNC | C_0603_1608Metric | C2_1_10_5B1, C2_1_10_5B2, C4_1_10_5B1, C4_1_10_5B2 |
| 1 | 33pF 0603CG330J500NT | C_0603_1608Metric | C2_HP1 |
| 1 | 2nF GCM1885C1H202FA16J | C_0603_1608Metric | C2_HP2 |
| 1 | 6.2nF 0805B622K500NT | C_0805_2012Metric | C2_LP1 |
| 13 | 1uF CL05A105KP5NNNC | C_0402_1005Metric | C2_PR1, C2_PRH1, C3_LA1, C7_TD1, C7_TDV1, C8_TD1, C8_TDV1, C9_TD1 +5 |
| 7 | 100NF 100nF CL05B104KO5NNNC | C_0402_1005Metric | C3, C4, C5, C8, C9, C10, C11 |
| 2 | 707.4pF 0603CG681J500NT | C_0603_1608Metric | C3_1_10_5B1, C3_1_10_5B2 |
| 1 | 56nF CC0603JRNPO9BN560 | C_0603_1608Metric | C3_HP1 |
| 1 | 1nF CC0402KRX7R9BB102 | C_0402_1005Metric | C3_PRH1 |
| 2 | 35PF 35pF GJM1555C1H360FB01D | C_0402_1005Metric | C6, C7 |
| 8 | 100nF CL05B104KO5NNNC | C_0402_1005Metric | C6(P10)1, C7(P1)1, C8(P22)1, C9(P42)1, C10(P49)1, C12(P33)1, C13(P23)1, C15(P50)1 |
| 4 | 470pF GRM1555C1H471GA01D | C_0402_1005Metric | C10_TD1, C10_TDV1, C11_TD1, C11_TDV1 |
| 1 | 3PF 3pF 0603CG3R0C500NT | C_0603_1608Metric | C12 |
| 4 | 1PF 1pF 0402CG1R0C500NT | C_0402_1005Metric | C13, C14, C21, C22 |
| 4 | 1NF 1nF CC0402KRX7R9BB102 | C_0402_1005Metric | C15, C16, C23, C24 |
| 4 | 1UF 1uF CL05A105KP5NNNC | C_0402_1005Metric | C17, C18, C25, C26 |
| 4 | 10UF 10uF CL05A106MP5NUNC | C_0402_1005Metric | C19, C20, C27, C28 |
| 1 | 1M FRC0402J105 TS | R_0402_1005Metric | R1 |
| 1 | 3.3k ERJP06F3301V | R_0805_2012Metric | R1_CCV1 |
| 4 | 1K RC-02K102JT | R_0402_1005Metric | R1_LA1, R2_LA1, R5, R6 |
| 2 | 13.7k 0402WGF1372TCE | R_0402_1005Metric | R1_PR1, R1_PRH1 |
| 8 | 10k RC0402FR-0710KL | R_0402_1005Metric | R1_SI5351AB1, R1_TD1, R1_TDV1, R2_SI5351AB1, R2_TD1, R2_TDV1, R3_TD1, R4_TD1 |
| 2 | 3.3k 0402WGF3301TCE | R_0402_1005Metric | R1_SS1, R2_SS1 |
| 1 | R 100k 1% RC0402FR-07100KL | R_0402_1005Metric | R1_VARB1 |
| 2 | 27 0402WGF270JTCE | R_0402_1005Metric | R2, R3 |
| 2 | 280 RC-02W2800FT | R_0402_1005Metric | R2_PR1, R2_PRH1 |
| 1 | R 4.53k 1% SCR0402F4K53 | R_0402_1005Metric | R2_VARB1 |
| 1 | 10M | R_0402_1005Metric | R3_PRH1 |
| 2 | 500k 3313J-1-504E | RES-ADJ-SMD_3313J-1 | R3_TDV1, R4_TDV1 |
| 2 | 10K RC0402FR-0710KL | R_0402_1005Metric | R4, R7 |
| 4 | FM8625H FM8625H | DFN-6_L1.1-W0.7-P0.40-BL | R9, R10, R11, R12 |
| 2 | 41.2 0402WGF412JTCE | R_0402_1005Metric | R13, R14 |
| 1 | 10 0402WGF100JTCE | R_0402_1005Metric | R15 |
| 2 | 48.7 0402WGF412JTCE | R_0402_1005Metric | R16, R18 |
| 1 | 1 0402WGF100KTCE | R_0402_1005Metric | R17 |
| 2 | 43 RTT0243R0FTH | R_0402_1005Metric | R19, R21 |
| 2 | 50 3313J-1-500E | RES-ADJ-SMD_3313J-1 | R20, R23 |
| 2 | 200 0402WGF2000TCE | R_0402_1005Metric | R22, R24 |
| 2 | 62 | R_0402_1005Metric | R25, R29 |
| 2 | 51 | R_0402_1005Metric | R26, R30 |
| 1 | 249 | R_0402_1005Metric | R27 |
| 1 | 2.49K 2.49k | R_0402_1005Metric | R28 |
| 2 | 51Ω 0805W8F510JT5E | R_0805_2012Metric | R31, R32 |
Rf switchboard design files
The KiCad project lives in the Erhannis/rf_switchboard repository on GitHub; these links point at the commit this page was built from.
- Layoutrf_switchboard.kicad_pcb
- Schematicrf_switchboard.kicad_sch
- BOMproduction/bom.csv
Rf switchboard: common questions
What microcontroller does the Rf switchboard use?
The Rf switchboard is built around the RP2040, from the RP2040/RP2350 family.
How big is the Rf switchboard PCB?
The Rf switchboard measures 100 × 174.6 mm, has 4 copper layers and is 1.564 mm thick.
How many components are on the Rf switchboard?
463 components, from 120 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 Rf switchboard design files?
From the Erhannis/rf_switchboard 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 Rf switchboard design in my own project?
The repository has no license, so all rights stay with Erhannis. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Rf switchboard without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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