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sparkfun
The hardware repository for the designs of the PCBs in the SparkPNT RTK Facet mosaic. This repo also includes the design files for the display and connector boards utilized in our next-generation of Facet GNSS products.
| Reference | Value | Description |
|---|---|---|
| Q1 | MBT3904DW1 | 100mA IC, 65V Vce, Dual NPN/NPN Transistors, SOT-363 |
| Q2 | SIL2308 | Dual N-Channel P-Channel MOSFET |
| Q3-Q5 | BSS138 | N-MOSFET transistor, drain/gate/source |
| U1 | ESP32-WROVER-E-N16R8 | |
| U2 | mosaic-X5 | Tri-band GNSS receiver |
| U3 | CH340C | USB serial converter, UART, SOIC-16 |
| U4 |
| Fuela Gauge IC for Batteries |
| U6 | SN74LVC1G14DCK | Single Schmitt-Trigger Inverter, Low-Voltage CMOS, 1.65V to 5.5V, SOT-353 (SC70) |
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| U7 | AP7361C-3.3V | 1A low dropout linear regulator, with enable pin, 2.2-6.0V input, 3.3V output, UDFN-8 |
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| U8 | SN74LVC1G17DCK | Single Schmitt-Trigger Buffer, Low-Voltage CMOS, 1.65V to 5.5V, SOT-353 (SC70) |
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| U9 | USB251xB | USB 2.0 Hi-Speed Hub Controller |
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| U10 | MCP73833_MSOP | Single cell, Li-Ion/Li-Po charge management controller, Thermal cut-off |
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| U11 | AP2112K-3.3 | 600mA low dropout linear regulator, with enable pin, 3.8V-6V input voltage range, 3.3V fixed positive output, SOT-23-5 |
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| U12 | STLQ015-3.3 | 150mA low dropout linear regulator, 1.4uA quiescent current |
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| U13 | 74HC4052D | Double 4-channel analog multiplexer/demultiplexer |
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| U14 | SN74LVC1G175DCK | Single D-Type Flip-Flop With Asynchronous Clear, 1.65V to 5.5V, SOT-323 (SC70) |
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| C1 | 10uF | Unpolarized capacitor |
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| C2,C3,C5,C6,C10-C13,C26,C28,C30 | 0.1uF | Unpolarized capacitor |
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| C4,C9,C27 | 2.2uF | Unpolarized capacitor |
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| C7,C8,C18,C21-C25 | 1.0uF | Unpolarized capacitor |
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| C14,C15 | 18pF | Unpolarized capacitor |
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| C16,C17 | 4.7uF | Unpolarized capacitor |
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| C19 | 47uF | Polarized tantalum capacitor |
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| C29 | 22uF | Unpolarized capacitor |
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| D1 | PESD0402 | Bidirectional transient-voltage-suppression diode |
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| D2 | DF5A5.6LFU | Low capacitance microSD unidirectional quadruple ESD protection diode array, 3.3V, Common Anode, SOT-353 |
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| D3,D4 | BAT60A | Schottky diode |
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| D5,D6 | BAS16J | Diode |
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| FID1-FID4 | Fiducial_0.5mm | Fiducial Marker |
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| G3,G5 | SparkFun_Logo |
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| J1 | U.FL | SMA PCB Edge Mount connector SMD |
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| J2 | JST_2mm_LiPo | 2 Pin 2mm JST Battery Connector |
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| J3 | Qwiic_RA | 4 pin JST 1mm polarized connector for I2C |
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| J4 | Conn_01x12 | SMD 12 pin friction fit JST connector |
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| J5 | Conn_01x14 | SMD 14 pin friction fit JST connector |
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| L1 | 470Ohm | Inductor |
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| R1-R3,R5,R11,R28,R30,R37-R39 | 10k | Resistor,Temperature dependent resistor |
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| R4,R6,R12,R13 | 2.2k | Resistor |
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| R7,R9,R22,R32,R35,R36 | 1k | Resistor |
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| R8 | 4.7k | Resistor |
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| R10,R14,R15,R18-R21,R23,R24,R42,R43 | 100k | Resistor |
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| R16,R41 | 169k | Resistor |
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| R17 | 12k | Resistor |
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| R25 | 1M | Resistor |
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| R26,R27 | 22 | Resistor |
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| R29 | 150k | Resistor |
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| R31 | 0 | Resistor |
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| R33 | 200k | Resistor |
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| R34 | 100 | Resistor |
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| TP1,TP4-TP13,TP21-TP23 | PTH | Test Point |
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| TP2,TP3,TP14-TP20,TP24,TP25 | 1.0mm | Test Point |
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| TR1 | RFCMF1220100M4T | USB Transformer |
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| Y1 | 24MHz | Crystal |
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