2 layers44.6 × 44.6 mm
4 layers60 × 40 mm
Frx
EIGSEP/CAD- Size
- 60 × 40 mm
- Copper layers
- 4
- Thickness
- 1.56 mm
- Parts
- 106
- Nets
- 78
- Pads
- 491
- Tracks, vias
- 341, 496
- Pours
- 13
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 27 Mar 2025
- Updated
- 29 May 2026
Overview
Frx is an open-source printed circuit board by EIGSEP, from the EIGSEP/CAD repository on GitHub. It is a 4-layer board of 60 × 40 mm with 106 parts on 78 nets, routed with 341 tracks and 496 vias.
It is built around the PGA-105+, PAT1220-C-3DB-T5 and AD8363ACPZ-R7, with the F1958NBGK, TCA6408APW and TMP117AIDRVR among its other parts. Its parts include 42 capacitors, 26 resistors, 13 ICs, 10 inductors and 3 connectors.
Main components
12
PGA-105+
SOT-89-3-40℃~+85℃ 1.9dB 15.9dB 19.3dBm 39.3dBm 4.8V~5.2V 40MHz~2.6GHz 63mA Linearization design SOT-89-3 RF Amplifiers ROHSMini-CircuitsRF Amplifiers
PAT1220-C-3DB-T5
SMD-3P,2x1.2mm-55℃~+125℃ 0Hz~10GHz 100mW 1dB 3dB 50Ω SMD-3P,2x1.2mm RF Attenuators ROHSSusumuRF Attenuators
AD8363ACPZ-R7
LFCSP-16(4x4)-40℃~+125℃ -56dBm~0dBm 4.5V~5.5V 50Hz~6GHz 60mA ±0.15dB 对数检测、均方根检测、温度补偿、集成电压/功率参考 LFCSP-16(4x4) RF Detectors ROHSAnalog DevicesRF Detectors
F1958NBGK
QFN-24-EP(4x4)-40℃~+105℃ 0.25dB、0.5dB、1dB 1.2dB、1.5dB、1.7dB、2.2dB、2.6dB、3dB 1MHz~6GHz 31.75dB 50Ω Electrostatic protection、Digitally programmable attenuation、Digital control interface、Parallel control interface QFN-24-EP(4x4) RF Attenuators ROHSRenesas ElectronicsRF Attenuators
TCA6408APW
TSSOP-16-40℃~+85℃ 1.65V~5.5V 10mA 1uA 2 200mV 25mA 400kHz 4V 8 I2C、SMBus Interrupt Output Push-Pull Reset function、Cascading and address extension、Built-in LED driver、IO level configurable TSSOP-16 I/O Expanders ROHSTexas InstrumentsI/O Expanders
TMP117AIDRVR
WDFN-6-EP(2x2)-55℃~+150℃ 1.7V~5.5V 15.5ms 16bit 3.1uA Factory temperature calibration、Temperature threshold monitoring、Low-power standby、On-chip non-volatile parameter storage、On-chip digital filtering/averaging I2C、SMBus ±0.1℃ WDFN-6-EP(2x2) Temperature Sensors ROHSTexas InstrumentsTemperature Sensors
TPS79333DBVR-TP
SOT-23-51 180mV@(300mA) 2uA 3.3V 300mA 5.5V 51uVrms 75dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TPS7A2601DRVR
WSON-6-EP(2x2)-40℃~+125℃@(Tj) 1 1.24V~17.4V 18V 2uA 300uVrms 500mA 52dB@(1kHz) 590mV@(500mA) Adjustable PG Pin、Over Current Protection、Over Temperature Protection Positive WSON-6-EP(2x2) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CBR04C101J3GAC
0402100pF 25V C0G ±5% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSKEMETMultilayer Ceramic Capacitors MLCC - SMD/SMT
RC0402FR-0710KL
UncategorisedUnknown maker
LQW15AN82NG00D
0402130mA 2.24Ω 82nH Unshielded Inductor ±2% 0402 Inductors (SMD) ROHSMurataPower InductorsBLM15PG100SN1D11
04020402 Ferrite Beads ROHSMurataFerrite Beads
README
README.mdCAD
Parts
106| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100n | Capacitor_SMD:C_0402_1005Metric | C2, C5, C6, C8, C9, C10, C15, C18, C19, C20, C21, C24, C28, C33, C36 |
| 8 | 100nF | Capacitor_SMD:C_0402_1005Metric | C17, C22, C26, C27, C30, C35, C38, C39 |
| 8 | 100p | Capacitor_SMD:C_0402_1005Metric | C11, C12, C13, C14, C16, C25, C29, C37 |
| 8 | 10k | Resistor_SMD:R_0402_1005Metric | R2, R18, R19, R22, R23, R24, R25, R26 |
| 4 | 120nH | Inductor_SMD:L_0402_1005Metric | L1, L5, L7, L8 |
| 4 | 5.1 | Resistor_SMD:R_0402_1005Metric | R1, R14, R15, R20 |
| 4 | BLM15PG100SN1D | Inductor_SMD:L_0402_1005Metric | FB1, FB2, FB3, FB4 |
| 4 | MountingHole_Pad | DSA2K:MountingHole_2_Pad_Via | H1, H2, H3, H4 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C31, C32, C40 |
| 3 | 3.6k | Resistor_SMD:R_0402_1005Metric | R7, R8, R10 |
| 3 | PGA-105+ | DSA2K:SOT89-HighTemp | U1, U5, U9 |
| 2 | 1.6p | Capacitor_SMD:C_0402_1005Metric | C3, C23 |
| 2 | 19.67nH | Inductor_SMD:L_0603_1608Metric | L6, L10 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R9, R21 |
| 2 | 20.6pF | Capacitor_SMD:C_0603_1608Metric | C41, C42 |
| 2 | 5.6k | Resistor_SMD:R_0402_1005Metric | R6, R11 |
| 2 | 8.2n | Inductor_SMD:L_0402_1005Metric | L2, L4 |
| 2 | PAT1220-C-3DB | DSA2K:RF_Attenuator_Susumu_PAT1220 | U14, U15 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 1.2n | Capacitor_SMD:C_0603_1608Metric | C34 |
| 1 | 18.2V | Diode_SMD:D_SMA | D1 |
| 1 | 1A trip | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | 2.5p | Capacitor_SMD:C_0402_1005Metric | C4 |
| 1 | 22u | Capacitor_Tantalum_SMD:CP_EIA-6032-28_Kemet-C | C1 |
| 1 | 24k | Resistor_SMD:R_0402_1005Metric | R17 |
| 1 | 270 | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 5.9n | Inductor_SMD:L_0402_1005Metric | L3 |
| 1 | 62 | Resistor_SMD:R_0402_1005Metric | R12 |
| 1 | 63.66nH | Inductor_SMD:L_0603_1608Metric | L9 |
| 1 | 8-pin header | DSA2K:HeaderThru8p | J1 |
| 1 | 82k | Resistor_SMD:R_0402_1005Metric | R16 |
| 1 | AD8363 | Package_CSP:Analog_LFCSP-16-1EP_4x4mm_P0.65mm_EP2.35x2.35mm_ThermalVias | U4 |
| 1 | Conn_Coaxial | Connector_Coaxial:SMA_Amphenol_132289_EdgeMount | J2 |
| 1 | Conn_Coaxial | DSA2K:SMP_EdgeMount_PE44482 | J3 |
| 1 | DNP | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | DNP | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | F1958 | Package_DFN_QFN:TQFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm_ThermalVias | U8 |
| 1 | INA296B4 | Package_TO_SOT_SMD:SOT-23-8 | U6 |
| 1 | Photodiode | DSA2K:MountedPD | D3 |
| 1 | R | Capacitor_SMD:C_0402_1005Metric | R3 |
| 1 | SW_DIP_x08 | Button_Switch_SMD:SW_DIP_SPSTx08_Slide_Copal_CHS-08B_W7.62mm_P1.27mm | SW1 |
| 1 | TCA6408A | Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.45x1.45mm | U7 |
| 1 | TLA2528 | DSA2K:WQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm_LargeThermalVias | U13 |
| 1 | TMP117 | Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U2 |
| 1 | TPS79333-EP | Package_TO_SOT_SMD:SOT-23-5 | U12 |
| 1 | TPS7A26 | Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U10 |
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Questions
How big is the Frx PCB?
It measures 60 × 40 mm and has 4 copper layers, 1.56 mm thick.
What parts does the Frx use?
106 parts, built around the PGA-105+, PAT1220-C-3DB-T5, AD8363ACPZ-R7 and F1958NBGK. 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.
Where can I download the Frx KiCad files?
From the EIGSEP/CAD repository on GitHub, at the commit this page was made from: the board is schematics_PCBs/rfof-frx/frx.kicad_pcb and its schematic schematics_PCBs/balun_screwboard/balun_screwboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Frx design in my own project?
Its repository states no licence, so its author keeps all rights: ask EIGSEP before reusing the design.