SDR-TRX
frohro
SDR-TRX is an experimental low-cost digital mode ham radio HF transceiver.
Components (69)
| Reference | Value | Description |
|---|---|---|
| Q2,Q3 | IRLML2060 | |
| U1 | PCM1808PWR | 24-bit, 99-dB SNR, 96-kHz stereo ADC with single-ended inputs |
| U2 | SN74CBT3253CPWR | |
| U3 | OPA1612AxD | |
| U4 | LM7805_TO220 | |
| U5 | MS5351M | |
| U6 | INA219AxD | |
| U7 | LM2937xS | |
| U8 | 74HC14 | |
| U9 | Pico | |
| U10 | TPS5430DDA | |
| U11 | CJ432 | |
| C1,C2,C6,C20,C30,C32,C39 | 10uF | |
| C3,C4,C11-C13,C16,C18,C36,C51 | 4.7nF | |
| C5,C7-C10,C14,C15,C19,C31,C33,C40,C46-C49 | 0.1u | |
| C17,C21-C24,C27-C29,C41-C45,C52-C60 | 120p | |
| C25,C26 | 1uF | |
| C34,C37,C38 | 22uF | |
| C35,C50 | 100uF | |
| D1-D3 | SS54 | |
| J1 | Debug Connector | |
| J2,J3 | BNC | |
| J4 | Audio Out to Soundcard | |
| J6 | +12V | |
| JP1 | GND_LP_SND | |
| JP2 | Groundloop RX_NS | |
| JP4 | Use backup regulator | |
| JP5 | CM1A | |
| JP6 | CM1B | |
| JP7 | CM2B | |
| JP8 | CM2A | |
| JP9 | Diode needed? | |
| JP12 | USB Only | |
| L1 | .48uH 12t/T-37-6 | |
| L2 | .19uH 5t/T37-6 | |
| L3 | 200u 22t FT-37-43 | |
| L4 | 15uH 7t/FT37-43 | |
| R1,R2 | 200 | |
| R3 | 1 | |
| R4-R6,R18 | 10k | |
| R7,R14,R15,R23 | 3.9k | |
| R8,R9 | 4.7k | |
| R10-R13,R20,R21 | 10 | |
| R16 | 470k | |
| R17 | 1k | |
| R19 | 2.67k | |
| R22 | 0.03 shunt | |
| SW2 | RESET | |
| T1 | 1:1 FT37-43 | |
| TP1 | I_LO | |
| TP2 | Q_LO | |
| TP4 | RX_NS | |
| TP5 | 180 | |
| TP6 | 0 | |
| TP7 | 270 | |
| TP8 | 90 | |
| TP9,TP13 | GND | |
| TP10 | I | |
| TP11 | Q | |
| TP12 | VA/2 | |
| TP15 | D | |
| TP16 | OSC | |
| TP17 | RX | |
| TP18 | RF_OUT | |
| TP27 | VDDA | |
| TP28 | +5 | |
| TP34 | +5.8 | |
| TP35 | +12 | |
| Y2 | X322525MSB4SI |