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LNA915: update PCB information in README

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Michael Ossmann
2020-08-03 15:13:11 -06:00
parent 21dd8a99fd
commit 1f8cc9fac4
1 changed files with 19 additions and 17 deletions
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hardware/LNA915/README
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@ -1,4 +1,4 @@
Copyright 2014 Michael Ossmann Copyright (c) 2014-2020 Great Scott Gadgets <info@greatscottgadgets.com>
These files are part of HackRF. These files are part of HackRF.
@ -27,25 +27,27 @@ hardware notes:
Schematic and layout files were designed in KiCad, an open source electronic Schematic and layout files were designed in KiCad, an open source electronic
design automation package. design automation package.
The PCB is designed to fit the Crystek SMA-KIT-1.5MF housing.
order of copper layers: order of copper layers:
Copper 1: C1F (front) Copper 1: F (front)
Copper 2: C2 Copper 2: In1
Copper 3: C3 Copper 3: In2
Copper 4: C1B (back) Copper 4: B (back)
PCB description: 4 layer PCB 0.0646 in PCB description: 4 layer PCB 0.8 mm
Copper 1: 1 oz copper (1.4 mil) Copper 1: 0.035 mm (1 oz)
Dielectric 1-2: 6.7 mil prepreg Dielectric 1-2: 0.2 mm prepreg
Copper 2: 0.5 oz copper (0.7 mil) Copper 2: 0.0175 mm (0.5 oz)
Dielectric 2-3: 47 mil core Dielectric 2-3: 0.265 mm core
Copper 3: 0.5 oz copper (0.7 mil) Copper 3: 0.0175 mm (0.5 oz)
Dielectric 3-4: 6.7 mil prepreg Dielectric 3-4: 0.2 mm prepreg
Copper 4: 1 oz copper (1.4 mil) Copper 4: 0.035 mm (1 oz)
FR408 or similar substrate with Er=3.66 (+/- 0.1) 7628 prepreg with Er=4.6
double side solder mask green double side solder mask green
double side silkscreen white double side silkscreen white
6 mil min trace width and 7 mil minimum trace width
6 mil min isolation 5 mil minimum isolation
PCBs of this specification are available from OSH Park. PCBs of this specification are available from JLCPCB (JLC7628 4-layer 0.8 mm stackup).