frohro/IQ_SDR10Quadrature Sampling SDR
IQ SDR is an open-source printed circuit board by frohro, from the frohro/IQ_SDR repository on GitHub. It is a 2-layer board of 100 × 100 mm with 116 parts on 46 nets, routed with 901 tracks and 71 vias.
It is built around the 74ALVC74D, FST3253M and SI5351A-B-GT, with the TS5A23157RSE, CX3225GB and MMBT2222A-TP among its other parts. Its parts include 32 capacitors, 23 connectors, 16 resistors, 12 inductors and 5 ICs. It belongs with the radio and wireless boards and the AVR (ATmega, ATtiny) boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 0.1uF | Capacitors_SMD:C_0805 | C3, C15, C16, C17, C20, C21, C22, C25, C28, C32 |
| 5 | 10uF | Capacitors_SMD:C_0805 | C23, C24, C29, C30, C31 |
| 3 | 0.01 | Capacitors_SMD:C_0805 | C1, C18, C19 |
| 3 | 2.2k | Resistors_SMD:R_0805 | R1, R6, R7 |
| 2 | 1.0k | Resistors_SMD:R_0805 | R11, R12 |
| 2 | 1.5nF | Capacitors_SMD:C_0805 | C4, C14 |
| 2 | 10 | Resistors_SMD:R_0805 | R9, R10 |
| 2 | 100 | Resistors_SMD:R_0805 | R13, R14 |
| 2 | 10k | Resistors_SMD:R_0805 | R2, R4 |
| 2 | 1N914 | Diodes_SMD:D_SOD-323 | D1, D2 |
| 2 | 1uH | Inductors_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L1, L11 |
| 2 | 2200pF | Capacitors_SMD:C_0805 | C26, C27 |
| 2 | 220pF | Capacitors_SMD:C_0805 | C5, C11 |
| 2 | 232nH | Inductors_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L3, L9 |
| 2 | 390pF | Capacitors_SMD:C_0805 | C6, C12 |
| 2 | 4.7k | Resistors_SMD:R_0805 | R15, R16 |
| 2 | 497nH | Inductors_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L4, L10 |
| 2 | 5.6k | Resistors_SMD:R_0805 | R3, R5 |
| 2 | 820pF | Capacitors_SMD:C_0805 | C2, C13 |
| 2 | Conn_01x01_Male | Pin_Headers:Pin_Header_Straight_1x01_Pitch2.54mm | J19, J20 |
| 2 | GND | Connectors:PINTST | J2, J4 |
| 1 | +5V | Connectors:PINTST | J15 |
| 1 | 1.137uH | Inductors_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L5 |
| 1 | 1.98uH | Inductors_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L6 |
| 1 | 100pF | Capacitors_SMD:C_0805 | C8 |
| 1 | 180pF | Capacitors_SMD:C_0805 | C9 |
| 1 | 1k | Resistors_SMD:R_0805 | R8 |
| 1 | 2.4uH | Inductors_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L2 |
| 1 | 2.6uH | Inductors_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L12 |
| 1 | 4.3V | Connectors:PINTST | J16 |
| 1 | 470pF | Capacitors_SMD:C_0805 | C10 |
| 1 | 47pF | Capacitors_SMD:C_0805 | C7 |
| 1 | 4uH | Inductors_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L7 |
| 1 | 7.2uH | Inductors_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L8 |
| 1 | 74ALVC74D | SMA:SO14 | U5 |
| 1 | ANT | Connectors:PINTST | J1 |
| 1 | Arduino_Nano_v3.x | Modules:Arduino_Nano | A1 |
| 1 | BNC | Connectors_TE-Connectivity:BNC_Socket_TYCO-AMP_LargePads | P1 |
| 1 | CLK0 | Connectors:PINTST | J9 |
| 1 | CLK1 | Connectors:PINTST | J7 |
| 1 | CLK2 | Connectors:PINTST | J8 |
| 1 | CX3225 | Crystals:Crystal_SMD_Abracon_ABM8G-4pin_3.2x2.5mm | Y1 |
| 1 | FIL_O | Connectors:PINTST | J6 |
| 1 | FST3253 | Housings_SSOP:TSSOP-16_4.4x5mm_Pitch0.65mm | U1 |
| 1 | GNDA | Connectors:PINTST | J12 |
| 1 | I_IN | Connectors:PINTST | J13 |
| 1 | I_OUT | Connectors:PINTST | J17 |
| 1 | Jumper_3_Bridged12 | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | JP2 |
| 1 | LM4562 or LT6231 | SMA:DMP8 | U4 |
| 1 | LO_I | Connectors:PINTST | J10 |
| 1 | LO_Q | Connectors:PINTST | J11 |
| 1 | MMBT2222A-TP | digikey-footprints:SOT-23-3 | Q1 |
| 1 | Q_IN | Connectors:PINTST | J14 |
| 1 | Q_OUT | Connectors:PINTST | J18 |
| 1 | SJ1-3523N | digikey-footprints:Headphone_Jack_2.5mm_SJ1-3523N | CON1 |
| 1 | SMA | SMA:SMA_EDGE | P2 |
| 1 | Si5351A-B-GT | EtherkitKicadLibrary:MSOP-10 | U2 |
| 1 | TS5A23157 | SMA:DGS0010A | U3 |
| 1 | Transformer_1P_SS | SMA:4_to_1_Transmission_Line_TransformerTHT | T1 |
| 1 | V_IN | Connectors:BARREL_JACK | J5 |
| 1 | V_IN pin header | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | J3 |
| 1 | smooth disable | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | JP1 |
The 96 most common of 116 parts.
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
116 parts, built around the 74ALVC74D, FST3253M, SI5351A-B-GT and TS5A23157RSE. 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 frohro/IQ_SDR repository on GitHub, at the commit this page was made from: the board is Receiver/IQ_SDR/IQ_SDR.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask frohro before reusing the design.
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