>VALUE >NAME >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE D S G >VALUE >NAME G S D >NAME >VALUE Low EMI buck converter Dual N-Channel MOSFET N/P Channel MOSFET pair 8 CHANNEL LOW CAPACITANCE TVS DIODE ARRAY Frames for Sheet and Layout >DRAWING_NAME >LAST_DATE_TIME >SHEET Sheet: FRAME DIN A4, landscape with location and doc. field Supply Symbols GND, VCC, 0V, +5V, -5V, etc. Please keep in mind, that these devices are necessary for the automatic wiring of the supply signals. The pin name defined in the symbol is identical to the net which is to be wired automatically. In this library the device names are the same as the pin names of the symbols, therefore the correct signal names appear next to the supply symbols in the schematic. <author>Created by librarian@cadsoft.de</author> >VALUE SUPPLY SYMBOL <h3>SparkFun Electronics' preferred foot prints</h3> In this library you'll find non-functional items- supply symbols, logos, notations, frame blocks, etc. We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com. Licensing: Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage. >VALUE SUPPLY SYMBOL >NAME >VALUE >NAME >VALUE >VALUE >NAME >NAME >VALUE >NAME >VALUE >NAME >VALUE >VALUE >NAME >NAME >VALUE MMIC Wideband Amplifier Johanson Technology, Inc. Filters www.johansontechnology.com <author>Created by librarian@cadsoft.de</author> >NAME >VALUE >NAME >VALUE SMD Ceramic GNSS Antenna <h3>SparkFun Electronics' preferred foot prints</h3> In this library you'll find connectors and sockets- basically anything that can be plugged into or onto. We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com. Licensing: Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage. SMA Antenna Connector This is a footprint for an edge mount RF antenna. Works pretty well with SMA type connectors but may also work with other edge mount RF connectors. Keep in mind, these edge mount connectors assume you are using a 0.062" PCB thickness. >NAME >VALUE Header for OS4000-T >NAME >VALUE >NAME >VALUE This footprint was designed to help hold the alignment of a through-hole component (i.e. 6-pin header) while soldering it into place. You may notice that each hole has been shifted either up or down by 0.005 of an inch from it's more standard position (which is a perfectly straight line). This slight alteration caused the pins (the squares in the middle) to touch the edges of the holes. Because they are alternating, it causes a "brace" to hold the component in place. 0.005 has proven to be the perfect amount of "off-center" position when using our standard breakaway headers. Although looks a little odd when you look at the bare footprint, once you have a header in there, the alteration is very hard to notice. Also, if you push a header all the way into place, it is covered up entirely on the bottom side. This idea of altering the position of holes to aid alignment will be further integrated into the Sparkfun Library for other footprints. It can help hold any component with 3 or more connection pins. >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE No outline in silkscreen >NAME >VALUE >Name >Value >Name >Value >NAME >VALUE >VALUE >NAME >Name >Value Org Blu Brn W/Grn Grn SMA Antenna Connector End launch SMA connector. The paste layer has been removed so that the connector can be hand soldered onto the board after reflow. Header 5 Standard 5-pin 0.1" header. Use with straight break away headers (SKU : PRT-00116), right angle break away headers (PRT-00553), swiss pins (PRT-00743), machine pins (PRT-00117), and female headers (PRT-00115). Molex polarized connector foot print use with SKU : PRT-08230 with associated crimp pins and housings. RJ45 Jack Simple RJ45, 8-pin connection - connector for common Cat5, Cat5e, and Cat6 Ethernet cables. Footprint not yet proven in production. Connector sku is PRT-00643; Breakout PCB sku is BOB-00716. >NAME >VALUE >NAME >VALUE Gnd Classic 4-pin 3.2 x 2.5mm crystal Test Pins/Pads Cream on SMD OFF. new: Attribute TP_SIGNAL_NAME <author>Created by librarian@cadsoft.de</author> TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME TEST PAD >NAME >VALUE >TP_SIGNAL_NAME >NAME >TP_SIGNAL_NAME Test pad >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE Standard SMD inductor Standard SMD capacitor Standard SMD resistor >NAME >VALUE >NAME >VALUE 1KB I2C EEPROM >NAME >NAME >VALUE Miniature tactile switch, 4-lead SMD >NAME >VALUE >NAME >VALUE Low Noise Adjustable LDO (1A max) >NAME >VALUE >NAME >VALUE SP2T RF Switch Small Signal Transistors Packages from : www.infineon.com; www.semiconductors.com; www.irf.com <author>Created by librarian@cadsoft.de</author> SOT-23 >NAME >VALUE >NAME >VALUE P-CHANNEL MOS FET >NAME >VALUE >NAME >VALUE GPS Module <h3>SparkFun Electronics' preferred foot prints</h3> In this library you'll find drivers, regulators, and amplifiers. We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com. Licensing: Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage. >Name >Value >Name >Value >NAME >VALUE >Name >Value >NAME >VALUE Resettable Fuse PTC Resettable Fuse. Spark Fun Electronics SKU : COM-08357 <h3>SparkFun Electronics' preferred foot prints</h3> In this library you'll find discrete semiconductors- transistors, diodes, TRIACs, optoisolators, etc. We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com. Licensing: Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage. >Name >Value Diode Basic small signal diode good up to 200mA. SMB footprint. Common part #: BAS16 >NAME >VALUE >NAME >VALUE 100V/150mA 1N4148 - Super Cheap >NAME >VALUE >NAME >VALUE >NAME >VALUE Zener Diode Production Part - 8199 3.4V Zener Voltage >NAME >VALUE >NAME >VALUE Bidirectional TVS diode Connections & Power MAIANA™ AIS Transponder Copyright © 2015-2020 Peter Antypas Licensed under GPLv3 V_PA is set to 8V MCU & EEPROM MAIANA™ AIS Transponder Copyright © 2015-2020 Peter Antypas Licensed under GPLv3 The STM32L412K8U6 is a reasonably priced M4 MCU with 64K of flash. Firmware built with -O2 barely fits, so a low-cost EEPROM is used to store configuration. This connector will accommodate either SEGGER or STLINK adapters that need a reference voltage. LNA & Bandpass MAIANA™ AIS Transponder Copyright © 2015-2020 Peter Antypas Licensed under GPLv3 This 3-pole Chebyshev has a measured insertion loss of only 2.6dB in the passband. It is sharp enough to bring FM radio and aviation aids (~200MHz) near or below the AIS band, but not selective enough to decimate VHF television between 174 and 180MHz. If this becomes an issue a notch filter will need to be inserted after the amplifier. RF Backend MAIANA™ AIS Transponder Copyright © 2015-2020 Peter Antypas Licensed under GPLv3 This unorthodox Class E configuration for 162MHz only outputs +16dBm, but achieves a much cleaner harmonic output which is essential. For RX, both IC inputs are configured as single-ended with no matching network. Practical field testing suggests there is no need for one. RF Power Amplifier MAIANA™ AIS Transponder Copyright © 2015-2020 Peter Antypas Licensed under GPLv3 This power amplifier adds 17dB of gain for a total conducted output power of +33dBm. It is based on the reference designs in the datasheet, but includes a narrowband input matching network to reduce BOM and a very steep Chebyshev low pass filter to deal with a pesky 2nd harmonic that falls in the restricted aviation band (324MHz). The MOSFET drain is always powered, but the gate bias voltage is turned on via R11, R12, C11 and L17. The RC delay is essential for suppressing spurious emissions during ramp up and ramp down. This MOSFET is at End Of Life. NXP recommends the AFT05MS004N as a replacement, but it's not a drop-in; it will need different matching networks, biasing and input power. On the upside, that part is more efficient and capable of 5W output, so it might be possible to support a class B+ variant. GPS MAIANA™ AIS Transponder Copyright © 2015-2020 Peter Antypas Licensed under GPLv3 This buffer enables DFU via the ROM bootloader, as it effectively shuts down the GPS UART without powering the module off. GPS_EN is pulled down in hardware and only firmware can push it high. Antenna Switch MAIANA™ AIS Transponder Copyright © 2015-2020 Peter Antypas Licensed under GPLv3 This switch does not need DC blocking caps, but control signals must be below 2.7V. RX_EN must be high during RX. The 9 test pads here form a footprint for a coaxial pogo pin probe in the test jig. Since Version 6.2.2 text objects can contain more than one line, which will not be processed correctly with this version.