2 layers240 × 38.7 mm
ETAclock
drkmsmithjr/ETANixieClock
An Estimated Time of Arrival Nixie Tube Clock Open Source Hardware Project
126 parts6
2 layers100 × 100 mm
Alexandrie
DH1KLM/AlexV2Dual ADC OpenHPSDR frontend control board
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 56
- Nets
- 98
- Pads
- 326
- Tracks, vias
- 709, 429
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 23 Jul 2023
- Updated
- 18 May 2023
Overview
Alexandrie is an open-source printed circuit board by DH1KLM, from the DH1KLM/AlexV2 repository on GitHub. It is a 2-layer board of 100 × 100 mm with 56 parts on 98 nets, routed with 709 tracks and 429 vias.
It is built around the TPIC6B595N and 74HCT04D. Its parts include 13 capacitors, 13 resistors, 10 connectors, 9 ICs and 7 diodes.
Main components
2
TPIC6B595N
PDIP-20-40℃~+125℃ 1 4.5V~5.5V 8 Asynchronous clear function、Output enable Open-drain Serial-to-Serial or Parallel TPIC PDIP-20 Shift Registers ROHSTexas InstrumentsShift Registers
74HCT04D
SO-14-40℃~+125℃ 1 19ns@4.5V,50pF 2V 2uA 3.7V 4.5V~5.5V 400mV 4mA 4mA 6 74HCT 800mV SO-14 Inverters ROHSNexperiaInverters
README
README.mdAlexandrie_V2
Dual ADC OpenHPSDR frontend control board
Kicad files
- Control board for Alexiares filter set driven by an Orion/OrionMK2/Anvelina SDR board with dual 16 bits ADC
This board supports the SPI "Alexiares" protocol (also called "J15") of the original Hermes SDR board designed by the OpenHPSDR group.
This second version drives a dual RX BPF filter. It also remains compatible with older versions of Alex (see assembly notes
As the third generation of Alexiares frontend is not sold by Apache but still under an open hardware licence, a new and more "modular" design was needed by many hams wishing to home-build a "Orion class" fontend
A common Gerber set of files will be used for both RX filters (one with a "RX2_GND" relay, one with a strap on the relay footprint)
TX filter depends on user's choice. The original 150W Alexiares lpf (https://github.com/F6ITU/Alexiares_LPF) or LA2NI Zolotarev 600W LPF (https://github.com/LA2NI/Zolotarev-LPF) This board could also be used with the new Aries ATU/Zolotarev lpf/Munin400 high power frontend
This work is protected by the TAPR Open Hardware Licence https://www.tapr.org/ohl.html Original work by Graham Haddock, KE9H and Phil Harman, VK6APH.
Parts
56| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8, C9, C11, C13 |
| 6 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6 |
| 6 | 1k2 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R9, R10, R11, R12, R13 |
| 6 | LED | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D2, D3, D4, D5, D6, D7 |
| 6 | TPIC6B595 | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U3, U4, U5, U6, U7, U8 |
| 4 | Conn_02x05_Odd_Even | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J2, J5, J6, J8 |
| 4 | TEST | MountingHole:MountingHole_3.5mm_Pad_Via | TP1, TP2, TP3, TP4 |
| 2 | 10u | Capacitor_Tantalum_SMD:CP_EIA-3528-12_Kemet-T_Pad1.50x2.35mm_HandSolder | C10, C12 |
| 2 | 74HCT04 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1, U2 |
| 1 | 4k7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | CONN_01X03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | Conn_01x03 | Connector_Molex:Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | J1 |
| 1 | Conn_01x04 | Connector_Molex:Molex_KK-254_AE-6410-04A_1x04_P2.54mm_Vertical | J9 |
| 1 | Conn_01x05 | Connector_Molex:Molex_KK-254_AE-6410-05A_1x05_P2.54mm_Vertical | J7 |
| 1 | Conn_01x06 | Connector_Molex:Molex_KK-254_AE-6410-06A_1x06_P2.54mm_Vertical | J4 |
| 1 | Conn_01x07 | Connector_Molex:Molex_KK-254_AE-6410-07A_1x07_P2.54mm_Vertical | J10 |
| 1 | D | Diode_SMD:D_SMB_Handsoldering | D1 |
| 1 | LM78M05_TO252 | Package_TO_SOT_SMD:TO-252-3_TabPin2 | U10 |
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Questions
How big is the Alexandrie PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Alexandrie use?
56 parts, built around the TPIC6B595N and 74HCT04D. 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 Alexandrie KiCad files?
From the DH1KLM/AlexV2 repository on GitHub, at the commit this page was made from: the board is Alexandrie.kicad_pcb and its schematic Alexandrie.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Alexandrie design in my own project?
Its repository states no licence, so its author keeps all rights: ask DH1KLM before reusing the design.