50 lines
1.5 KiB
Plaintext
50 lines
1.5 KiB
Plaintext
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Copyright 2012 - 2016 Great Scott Gadgets
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These files are part of HackRF.
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This is a free hardware design; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This design is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this design; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street,
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Boston, MA 02110-1301, USA.
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Opera Cake is an RF switching add-on for HackRF One.
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hardware notes:
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Schematic and layout files were designed in KiCad, an open source electronic
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design automation package.
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order of copper layers:
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Copper 1: C1F (front)
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Copper 2: C2
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Copper 3: C3
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Copper 4: C4B (back)
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PCB description: 4 layer PCB 0.0646 in
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Copper 1: 1 oz copper (1.4 mil)
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Dielectric 1-2: 6.7 mil prepreg
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Copper 2: 0.5 oz copper (0.7 mil)
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Dielectric 2-3: 47 mil core
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Copper 3: 0.5 oz copper (0.7 mil)
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Dielectric 3-4: 6.7 mil prepreg
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Copper 4: 1 oz copper (1.4 mil)
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FR408 or similar substrate with Er=3.66 (+/- 0.1)
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double side solder mask green
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double side silkscreen white
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6 mil min trace width and
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6 mil min isolation
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PCBs of this specification are available from OSH Park.
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