NIMRS-21Pin-Decoder
CDFER
An open source 21-Pin DCC Decoder for model trains
Components (30)
| Reference | Value | Description |
|---|---|---|
| Q1,Q2 | MMDT3904 | NPN SOT-363 Bipolar (BJT) ROHS |
| U1 | ESP32-S3FN8 | Microcontroller, Wi-Fi 802.11b/g/n, Bluetooth, 32bit |
| U2 | MAX98357A | Mono DAC with amplifier, I2S, PCM, TDM, 32-bit, 96khz, 3.2W, TQFP-16 |
| U4 | DRV8213DSGR | H-Bridge driver, 4A, Low Voltage, PWM input, WSON-8 |
| U60,U70 | TPS63070 | Buck-Boost Converter, 2.5-16V Input Voltage |
| C1,C2,C7,C9,C11,C15,C16,C62,C63,C72,C73,C75 | 10uF | 10uF 6.3V X5R ±20% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHS,25V 10uF X5R ±20% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHS,6.3V 10uF X5R ±20% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHS |
| C8,C10 | 20pF | 50V 20pF C0G ±5% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHS |
| C12,C13 | 1.5pF | 50V 1.5pF C0G 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHS |
| C17 | 1uF | 1uF 25V X5R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHS |
| C60,C61,C64-C67,C70,C71 | 22uF | 25V 22uF X5R ±20% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHS |
| C68,C76 | 100nF | 16V 100nF X7R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHS |
| C74 | 100uF | 6.3V 100uF X5R ±20% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHS |
| D1-D4 | B5817WS | 20V Independent Type 1A 450mV@1.0A SOD-323 Schottky Diodes ROHS |
| D5 | BZX584C18 | Independent Type 16.8V~19.1V 150mW 18V SOD-523 Zener Diodes ROHS |
| J1 | 21Pin Loco Socket | NEM 660, Electrical Interface 21MTC |
| J2 | U.FL | coaxial connector (BNC, SMA, SMB, SMC, Cinch/RCA, LEMO, ...) |
| L1 | 2.7nH | 800mA 2.7nH 120mΩ 0402 Inductors (SMD) ROHS |
| L3 | 15nH,300mA | 8@100MHz ±5% 0402 Inductors (SMD) |
| L60,L70 | 1.0uH,4.1A | 4.5A 1uH Integrated molded inductor ±20% 4.6A SMD,1.6x2mm Power Inductors ROHS |
| R1 | 470Ω | 62.5mW Thick Film Resistors 50V ±100ppm/°C ±1% 470Ω 0402 Chip Resistor - Surface Mount ROHS |
| R3,R61 | 510kΩ | 62.5mW Thick Film Resistors 50V ±100ppm/°C ±1% 510kΩ 0402 Chip Resistor - Surface Mount ROHS |
| R4,R6,R8,R71 | 75kΩ | 62.5mW Thick Film Resistors 50V ±100ppm/°C ±1% 75kΩ 0402 Chip Resistor - Surface Mount ROHS |
| R5,R7,R9 | 20kΩ | 62.5mW Thick Film Resistors 50V ±100ppm/°C ±1% 20kΩ 0402 Chip Resistor - Surface Mount ROHS |
| R10 | 2.4kΩ | 62.5mW Thick Film Resistors 50V ±100ppm/°C ±1% 2.4kΩ 0402 Chip Resistor - Surface Mount ROHS |
| R12-R15 | 1kΩ | 62.5mW Thick Film Resistors 50V ±100ppm/°C ±1% 1kΩ 0402 Chip Resistor - Surface Mount ROHS |
| R60,R70 | 10kΩ | 62.5mW Thick Film Resistors 50V ±100ppm/°C ±1% 10kΩ 0402 Chip Resistor - Surface Mount ROHS |
| R62 | 51kΩ | 62.5mW Thick Film Resistors 50V ±100ppm/°C ±1% 51kΩ 0402 Chip Resistor - Surface Mount ROHS |
| R63,R73 | 100kΩ | 62.5mW Thick Film Resistors 50V ±100ppm/°C ±1% 100kΩ 0402 Chip Resistor - Surface Mount ROHS |
| R72 | 24kΩ | 62.5mW Thick Film Resistors 50V ±100ppm/°C ±1% 24kΩ 0402 Chip Resistor - Surface Mount ROHS |
| X1 | 40Mhz | Four pin crystal, GND on pins 2 and 4 |