NPR70
slintak
The New Packet Radio on 70 cm band. Based on the project NPR from F4HDK.
Components (41)
| Reference | Value | Description |
|---|---|---|
| Q1 | BC847 | NPN transistor, base/emitter/collector |
| U1 | 23LC1024 | 1-Mbit SPI Serial SRAM with SDI and SQI Interface |
| U2 | STM32L432KCUx | STMicroelectronics Arm Cortex-M4 MCU, 256KB flash, 64KB RAM, 80 MHz, 1.71-3.6V, 26 GPIO, UFQFPN32 |
| U3 | W5500 | 10/100Mb SPI Ethernet controller with TCP/IP stack, LQFP-48 |
| U4 | RF4463F30 | 1W Si4463 RF Module With Amplifier And LNA |
| U5 | TPS63000 | Buck-Boost Converter, 1.8-5.5V Input Voltage, 1.8A Switch Current, Adjustable 1.2-5.5V Output Voltage, VSON-10 |
| U6 | TPD2EUSB30 | 2-Channel ESD Protection for Super-Speed USB 3.0 Interface, DRT-3 |
| U7 | CH340K | USB serial converter, UART, SSOP-10 |
| C1-C4,C7,C10,C21-C26,C30,C37-C39 | 100n | Unpolarized capacitor |
| C5,C6 | 6p | Unpolarized capacitor |
| C8,C28,C32,C35 | 100u | Unpolarized capacitor |
| C9,C27,C29,C33,C34 | 10u | Unpolarized capacitor |
| C11,C12 | 6.8n | Unpolarized capacitor |
| C13,C14,C16,C19 | 10n | Unpolarized capacitor |
| C15 | 1nF/2kV | Unpolarized capacitor |
| C17,C18 | 12p | Unpolarized capacitor |
| C20 | 4u7 | Unpolarized capacitor |
| C31,C36 | 220u | Polarized capacitor |
| C40,C41 | 6.8pF | Unpolarized capacitor |
| D1-D4 | LED | Light emitting diode |
| F1 | BSMD0805-100-6V | Resettable fuse, polymeric positive temperature coefficient |
| FB1-FB4 | 600Ω@100MHz | Ferrite bead, small symbol |
| J2,J3 | GPIO | Generic connector, double row, 02x03, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J5 | RJ45_Hanrun_HR911105A_Horizontal | 1 Port RJ45 Magjack Connector Through Hole 10/100 Base-T, AutoMDIX |
| J6 | Antenna | coaxial connector (BNC, SMA, SMB, SMC, Cinch/RCA, LEMO, ...) |
| J9 | TYPE-C-31-M-12 | USB 2.0-only 16P Type-C Receptacle connector |
| L1 | 2.2u | Inductor |
| L2 | 20nH | Inductor |
| R1,R51,R53 | 5k1 | Resistor |
| R2,R3,R9,R10,R12-R21,R29,R47,R48 | 120R | Resistor |
| R4-R7,R38,R40 | 330R | Resistor |
| R8,R11,R22,R28,R30,R33-R35,R42-R46 | 10k | Resistor |
| R23,R24,R36,R37 | 50R | Resistor |
| R25-R27,R31,R32 | 10R | Resistor |
| R39,R50 | 1M | Resistor |
| R41 | 12k | Resistor |
| R49,R52,R54 | 100k | Resistor |
| SW1 | RESET | Push button switch, generic, two pins |
| TP1-TP6 | GND | test point |
| Y1 | NX3215SA-32.768k | Two pin crystal |
| Y2 | 25MHz | Four pin crystal, GND on pins 2 and 4 |