

Digital
Flight termination device
- Size
- 48 × 40 mm
- Copper layers
- 6
- Thickness
- 1.56 mm
- Parts
- 96
- Nets
- 102
- Pads
- 397
- Tracks, vias
- 725, 321
- Pours
- 488
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 29 Jul 2023
- Updated
- 7 Sep 2026
Overview
Digital is an open-source printed circuit board by UMDBPP, from the UMDBPP/Terminator repository on GitHub. It is a 6-layer board of 48 × 40 mm with 96 parts on 102 nets, routed with 725 tracks and 321 vias.
It is built around the BGS 12WN6 E6327, SX1262IMLTRT and LTC3306CACBZ-R7, with the MIA-M10Q, MIC5504-3.3YM5 and 0900FM15K0039E among its other parts. Its parts include 34 capacitors, 23 resistors, 11 ICs, 6 connectors and 5 inductors. It belongs with the STM32 boards of this library.
Main components
7BGS 12WN6 E6327
DFN-6(0.7x1.1)-40℃~+85℃ 0.75dB 1.65V~3.6V 50MHz~6GHz 53dB SPDT DFN-6(0.7x1.1) RF Switches ROHSInfineon TechnologiesRF SwitchesSX1262IMLTRT
QFN-24-EP(4x4)-148dBm -40℃~+85℃ 1.8V~3.7V 150MHz~960MHz 22dBm 300Kbps 32mA 4.2mA ISM SPI Supports software reset、Power-on reset function、Supports RSSI function transceiver QFN-24-EP(4x4) RF Transceiver ICs ROHSSEMTECHRF Transceiver ICsLTC3306CACBZ-R7
WLCSP-6(1x1.6)-40℃~+125℃@(TJ) 1 1.75A 2.25V~5.5V 2MHz 500mV~3.65V Buck Buck Built-in Yes WLCSP-6(1x1.6) DC-DC Converters ROHSAnalog DevicesDC-DC ConvertersMIA-M10Q
LGA-53LGA-53 New Arrivals ROHSu-bloxUncategorisedMIC5504-3.3YM5
SOT-23-5-40℃~+125℃@(Tj) 1 120uVrms 15uA 180mV@(300mA) 3.3V 300mA 5.5V 75dB@(1kHz) Fixed Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators0900FM15K0039E
SMD-10P,1.2x2mmSMD-10P,1.2x2mm Ceramic Filters ROHSJohanson DielectricsCeramic FiltersUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
README
README.mdTerminator
A flight termination device for BPP.
T1100 - Current Revision
Much the same as T1000 but simpler and more complete.
T1000
Shipman's ENEE499L project. The digital portion integrates a STM32L4, GPS, P/T Sensor, FRAM, and SX1262 Radio. This should provide quite a bit of flexibility in a small package while consuming minimal power. The digital board interfaces with a cutdown board which performs hot-wire termination like many other designs. However, this board is really just a barebones buck converter power stage that will be controlled by the digital board. This should provide increased flexiblity and efficiency over other implementations while also allowing T1000 to terminate even 550 paracord.
Parts
96| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C4, C6, C7, C9, C11, C14, C25, C26, C27, C28, C32 |
| 6 | 1uF | Capacitor_SMD:C_0603_1608Metric | C15, C16, C17, C18, C22, C24 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R3, R4, R12, R13, R25 |
| 4 | 0 | Resistor_SMD:R_0402_1005Metric | R2, R6, R7, R19 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric | C19, C23, C35 |
| 3 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric | R17, R20 |
| 2 | 32.768k | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1, Y2 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C5, C8 |
| 2 | 47nH | Inductor_SMD:L_0402_1005Metric | L3, L5 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R9, R10 |
| 2 | C_Small | Capacitor_SMD:C_0402_1005Metric | C12, C13 |
| 2 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3, J7 |
| 2 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2 |
| 2 | SW_SPDT | BPP_Lib:CAS-120TB_NDC-M | SW1, SW2 |
| 1 | 0900FM15K0039 | RF_Converter:Balun_Johanson_0900FM15K0039 | FL1 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R22 |
| 1 | 100m | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 10pF | Capacitor_SMD:C_0402_1005Metric | C31 |
| 1 | 113k | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | 15uF | Capacitor_SMD:C_1206_3216Metric | C21 |
| 1 | 15uH | Inductor_SMD:L_0805_2012Metric | L4 |
| 1 | 1S | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT1 |
| 1 | 1nF | Capacitor_SMD:C_0402_1005Metric | C34 |
| 1 | 1uH | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 2.2pF | Capacitor_SMD:C_0402_1005Metric | C20 |
| 1 | 220 | Resistor_SMD:R_0402_1005Metric | R21 |
| 1 | 294k | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 3.3uH | Inductor_SMD:L_1210_3225Metric | L2 |
| 1 | 39pF | Capacitor_SMD:C_0402_1005Metric | C33 |
| 1 | 47nF | Capacitor_SMD:C_0402_1005Metric | C29 |
| 1 | 47pF | Capacitor_SMD:C_0402_1005Metric | C30 |
| 1 | 51k | Resistor_SMD:R_0402_1005Metric | R24 |
| 1 | 6.8k | Resistor_SMD:R_0402_1005Metric | R23 |
| 1 | 600 | Resistor_SMD:R_0402_1005Metric | R16 |
| 1 | 649k | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | Antenna | BPP_Lib:ANT_1575AT_JOT-M | AE1 |
| 1 | BGS12WN6E6327 | Package_LGA:Infineon_PG-TSNP-6-10_0.7x1.1mm_0.7x1.1mm_P0.4mm | U10 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_01x06_Socket | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | Conn_Coaxial | Connector_Coaxial:U.FL_Molex_MCRF_73412-0110_Vertical | J6 |
| 1 | DNF | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | ECS-2520MV-xxx-xx | Oscillator:Oscillator_SMD_ECS_2520MV-xxx-xx-4Pin_2.5x2.0mm | X1 |
| 1 | ECS-TXO-25CSMV-320 | Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm | TCXO1 |
| 1 | LED_Small | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | LM66100DCKR | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U7 |
| 1 | LM66200DRLR | BPP_Lib:SOT-5X3_DRL_TEX | U6 |
| 1 | LTC3306CACBZ-R7 | BPP_Lib:CB-6-19_ADI | U11 |
| 1 | LTC4065EDC-TRMPBF | BPP_Lib:DFN-6_DC_LIT | U8 |
| 1 | MB85RS1MT | BPP_Lib:BGA8CP30X40_5X3_309X228X35B25N | U4 |
| 1 | MIA-M10Q | BPP_Lib:MIA-M10Q | U2 |
| 1 | MIC5504-3.3YM5 | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | MS5607-02BA | Package_LGA:LGA-8_3x5mm_P1.25mm | U1 |
| 1 | STM32L422KBUx | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U12 |
| 1 | SX1262IMLTRT | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U9 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:TSOT-23-6 | D1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J5 |
The 95 most common of 96 parts.
Questions
How big is the Digital PCB?
It measures 48 × 40 mm and has 6 copper layers, 1.56 mm thick.
What parts does the Digital use?
96 parts, built around the BGS 12WN6 E6327, SX1262IMLTRT, LTC3306CACBZ-R7 and MIA-M10Q. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Digital KiCad files?
From the UMDBPP/Terminator repository on GitHub, at the commit this page was made from: the board is Hardware/T1000/Digital/Digital.kicad_pcb and its schematic Hardware/T1000/Cutdown_Power/cutdown/cutdown.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Digital design in my own project?
Its repository states no licence, so its author keeps all rights: ask UMDBPP before reusing the design.
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