nixie-clock
jason-watkins
Components (50)
| Reference | Value | Description |
|---|---|---|
| Q101 | FDS4935A | Dual PMOS transistor, 8 pin package |
| Q122 | DMP3099L | P-MOSFET transistor, gate/source/drain |
| Q131 | FDC6312P | Dual PMOS transistor, 6 pin package |
| U1,U2 | 74LVC1G17 | Single Schmitt Buffer Gate, Low-Voltage CMOS |
| U3 | ESP32-S3-WROOM-1 | Espressif ESP32-S3 Wi-Fi + BLE module, PCB antenna, 41-pin castellated; pin numbers per datasheet Table 3-1, names use chip GPIO numbering plus Table 3-1 bold default functions (USB, JTAG, UART0); left side system pins, right side GPIO bank; GPIO35-37 unavailable on octal-PSRAM (R8) variants, GPIO47/48 are 1.8 V domain on N16R16VA only |
| U101 | USBLC6-2SC6 | Very low capacitance ESD protection diode, 2 data-line, SOT-23-6 |
| U102 | TS3USB221A | USB 2.0 high-speed 1:2 analog multiplexer/demultiplexer with single enable |
| U103 | CYPD3176 | Infineon EZ-PD BCR-PLUS USB-C PD sink controller, resistor-configured, QFN-24; symbol arranged per datasheet Fig. 4 application diagram |
| U121 | TPS63070 | TI TPS63070 buck-boost converter, 2 A switch current, VIN 2 to 16 V, VOUT 2.5 to 9 V, VQFN-15 2.5x3 mm; pin layout mirrors datasheet typical application. Terminals 12/13 (VIN) and 7/8 (VOUT) are each internally common and share a single land; pin 8 is typed passive so ERC accepts it alongside power output pin 7. Pinout is common to TPS63070, TPS630701 and TPS630702. FB2 is an internally switched open-drain to GND (the datasheet types it O) but is typed passive here so ERC accepts grounding it, which the datasheet sanctions when voltage scaling is unused |
| U131 | TPS629203 | TI TPS629203 synchronous step-down converter, DCS-Control, 3 V to 17 V input, 300 mA, SOT-5X3 (DRL) 8 pin; output voltage set either by an external divider on FB or by a resistor to GND on VSET, switching frequency and power save mode set by a resistor on MODE/S-CONF; pin compatible with TPS629206 and TPS629210 |
| C1-C3,C5,C102,C106,C108,C123 | 100nF | Unpolarized capacitor |
| C4,C125,C132,C133 | 22uF | Unpolarized capacitor |
| C101 | 4.7uF | Unpolarized capacitor |
| C103-C105,C107 | 1uF | Unpolarized capacitor |
| C121,C122,C124,C131 | 10uF | Unpolarized capacitor |
| C126 | 47uF | Unpolarized capacitor |
| D1 | TX | Light emitting diode |
| D2 | RX | Light emitting diode |
| D3 | STATUS | Light emitting diode |
| D101 | V_{BUSC} | Light emitting diode |
| D102 | SD15Q-7 | Zener diode |
| D103 | MM3Z10VST1G | Zener diode |
| D104 | FAULT | Light emitting diode |
| D105 | V_{BUS} | Light emitting diode |
| D122 | +3.3V | Light emitting diode |
| D131 | +5V | Light emitting diode |
| J2 | JTAG | Generic connector, double row, 02x05, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J3 | JTAG SRC | Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J4 | 26 pin IDC | Generic connector, double row, 02x13, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J5 | Conn_01x06 | Generic connector, single row, 01x06, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J6 | I2C | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J7 | FLASH | Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J101 | USB_C_Receptacle_USB2.0_16P | USB 2.0-only 16P Type-C Receptacle connector |
| L121 | 1.5uH | Inductor |
| L131 | 2.2uH | Inductor |
| R1 | 150 | Resistor |
| R2,R5,R7,R9-R12,R102,R103,R121,R124,R127 | 10k | Resistor |
| R3,R4,R8 | 680 | Resistor |
| R6,R104,R112,R113,R122,R123,R129 | 100k | Resistor |
| R101,R111 | 20k | Resistor |
| R105,R110 | 1k | Resistor |
| R106,R108 | 5.1k | Resistor |
| R107,R109,R128 | 2.4k | Resistor |
| R125 | 120k | Resistor |
| R126 | 39k | Resistor |
| R131 | 27k | Resistor |
| R132 | 80.6k | Resistor |
| R134 | 5.6k | Resistor |
| SW1 | Boot | Push button switch, generic, two pins |
| SW2 | Reset | Push button switch, generic, two pins |