{
  "board": {
    "3dviewports": [],
    "design_settings": {
      "defaults": {
        "apply_defaults_to_fp_fields": false,
        "apply_defaults_to_fp_shapes": false,
        "apply_defaults_to_fp_text": false,
        "board_outline_line_width": 0.381,
        "copper_line_width": 0.2032,
        "copper_text_italic": false,
        "copper_text_size_h": 0.762,
        "copper_text_size_v": 1.016,
        "copper_text_thickness": 0.1905,
        "copper_text_upright": false,
        "courtyard_line_width": 0.05,
        "dimension_precision": 4,
        "dimension_units": 3,
        "dimensions": {
          "arrow_length": 1270000,
          "extension_offset": 500000,
          "keep_text_aligned": true,
          "suppress_zeroes": false,
          "text_position": 0,
          "units_format": 1
        },
        "fab_line_width": 0.1,
        "fab_text_italic": false,
        "fab_text_size_h": 1.0,
        "fab_text_size_v": 1.0,
        "fab_text_thickness": 0.15,
        "fab_text_upright": false,
        "other_line_width": 0.1,
        "other_text_italic": false,
        "other_text_size_h": 1.0,
        "other_text_size_v": 1.0,
        "other_text_thickness": 0.15,
        "other_text_upright": false,
        "pads": {
          "drill": 0.0,
          "height": 0.25,
          "width": 0.25
        },
        "silk_line_width": 0.2032,
        "silk_text_italic": false,
        "silk_text_size_h": 1.524,
        "silk_text_size_v": 1.524,
        "silk_text_thickness": 0.3048,
        "silk_text_upright": false,
        "zones": {
          "45_degree_only": false,
          "min_clearance": 0.25
        }
      },
      "diff_pair_dimensions": [
        {
          "gap": 0.0,
          "via_gap": 0.0,
          "width": 0.0
        }
      ],
      "drc_exclusions": [
        [
          "courtyards_overlap|172085000|128805000|00000000-0000-0000-0000-00005787e7b0|6feea198-fb55-4b20-9311-103b374fb6a1",
          ""
        ],
        [
          "courtyards_overlap|173905000|140005000|00000000-0000-0000-0000-00005787e6f8|00000000-0000-0000-0000-00005787e7b0",
          ""
        ],
        [
          "courtyards_overlap|175739210|167963695|00000000-0000-0000-0000-00005787e787|1ab20d22-c884-4c9f-800f-64b4c58f758c",
          ""
        ],
        [
          "courtyards_overlap|60915000|115705000|00000000-0000-0000-0000-00005290336d|00000000-0000-0000-0000-00005787ecea",
          ""
        ],
        [
          "courtyards_overlap|60915000|128355000|00000000-0000-0000-0000-0000527df51c|00000000-0000-0000-0000-00005787ecd8",
          ""
        ],
        [
          "courtyards_overlap|62285000|119605000|00000000-0000-0000-0000-00005290336d|00000000-0000-0000-0000-00005787ecd8",
          ""
        ],
        [
          "courtyards_overlap|65550719|106605000|00000000-0000-0000-0000-00005787ecea|deb4ce5e-9f1f-4e3a-ac62-b02a7ad9ac03",
          ""
        ],
        [
          "courtyards_overlap|66955000|170274570|368cbbb1-f1dc-4090-8d50-66973b9907ea|5e5014cc-f51a-4208-894b-e98bc51eb05b",
          ""
        ],
        [
          "nonmirrored_text_on_back_layer|167000000|101300000|77a3914e-0fef-42a4-8f2a-e65b7558898e|00000000-0000-0000-0000-000000000000",
          ""
        ],
        [
          "pth_inside_courtyard|174800000|140800000|4fe1d6fe-ec7c-4e6a-b76e-631ef6fe1c5e|00000000-0000-0000-0000-00005787e7b0",
          ""
        ],
        [
          "pth_inside_courtyard|174800000|141900000|26639630-e4cd-4a23-b09c-9432ff65fd0c|00000000-0000-0000-0000-00005787e7b0",
          ""
        ],
        [
          "pth_inside_courtyard|174800000|143000000|7358911c-e851-41e8-a2c8-dcda369b9e93|00000000-0000-0000-0000-00005787e7b0",
          ""
        ],
        [
          "pth_inside_courtyard|174800000|147000000|8c21572b-1360-46e5-8747-3e04cae8a5c7|00000000-0000-0000-0000-00005787e7b0",
          ""
        ],
        [
          "pth_inside_courtyard|174800000|148100000|f8e1cebd-629f-471b-a7e1-c9e0d1c30ca4|00000000-0000-0000-0000-00005787e7b0",
          ""
        ],
        [
          "pth_inside_courtyard|174800000|149200000|00cbfb16-a64b-4104-92fc-3fe47d060d76|00000000-0000-0000-0000-00005787e7b0",
          ""
        ],
        [
          "silk_over_copper|174395074|146650000|f7759e93-cfb2-4121-92b4-d4f42307c662|00000000-0000-0000-0000-000000000000",
          ""
        ]
      ],
      "meta": {
        "filename": "board_design_settings.json",
        "version": 2
      },
      "rule_severities": {
        "annular_width": "error",
        "clearance": "error",
        "connection_width": "warning",
        "copper_edge_clearance": "error",
        "copper_sliver": "warning",
        "courtyards_overlap": "error",
        "creepage": "error",
        "diff_pair_gap_out_of_range": "error",
        "diff_pair_uncoupled_length_too_long": "error",
        "drill_out_of_range": "error",
        "duplicate_footprints": "warning",
        "extra_footprint": "warning",
        "footprint": "error",
        "footprint_filters_mismatch": "ignore",
        "footprint_symbol_mismatch": "warning",
        "footprint_type_mismatch": "error",
        "hole_clearance": "error",
        "hole_near_hole": "error",
        "hole_to_hole": "error",
        "holes_co_located": "warning",
        "invalid_outline": "warning",
        "isolated_copper": "warning",
        "item_on_disabled_layer": "error",
        "items_not_allowed": "error",
        "length_out_of_range": "error",
        "lib_footprint_issues": "warning",
        "lib_footprint_mismatch": "warning",
        "malformed_courtyard": "error",
        "microvia_drill_out_of_range": "error",
        "mirrored_text_on_front_layer": "warning",
        "missing_courtyard": "warning",
        "missing_footprint": "warning",
        "net_conflict": "warning",
        "nonmirrored_text_on_back_layer": "warning",
        "npth_inside_courtyard": "warning",
        "padstack": "error",
        "pth_inside_courtyard": "warning",
        "shorting_items": "error",
        "silk_edge_clearance": "warning",
        "silk_over_copper": "warning",
        "silk_overlap": "warning",
        "skew_out_of_range": "error",
        "solder_mask_bridge": "error",
        "starved_thermal": "error",
        "text_height": "warning",
        "text_on_edge_cuts": "error",
        "text_thickness": "warning",
        "through_hole_pad_without_hole": "error",
        "too_many_vias": "error",
        "track_angle": "error",
        "track_dangling": "warning",
        "track_segment_length": "error",
        "track_width": "error",
        "tracks_crossing": "error",
        "unconnected_items": "error",
        "unresolved_variable": "error",
        "via_dangling": "warning",
        "zone_has_empty_net": "error",
        "zones_intersect": "error"
      },
      "rules": {
        "allow_blind_buried_vias": false,
        "allow_microvias": false,
        "max_error": 0.005,
        "min_clearance": 0.127,
        "min_connection": 0.0,
        "min_copper_edge_clearance": 0.0,
        "min_groove_width": 0.0,
        "min_hole_clearance": 0.18,
        "min_hole_to_hole": 0.2,
        "min_microvia_diameter": 0.25,
        "min_microvia_drill": 0.127,
        "min_resolved_spokes": 2,
        "min_silk_clearance": 0.0,
        "min_text_height": 1.0,
        "min_text_thickness": 0.12,
        "min_through_hole_diameter": 0.3,
        "min_track_width": 0.127,
        "min_via_annular_width": 0.05,
        "min_via_diameter": 0.4,
        "solder_mask_to_copper_clearance": 0.0,
        "use_height_for_length_calcs": true
      },
      "teardrop_options": [
        {
          "td_onpthpad": true,
          "td_onroundshapesonly": false,
          "td_onsmdpad": true,
          "td_ontrackend": false,
          "td_onvia": true
        }
      ],
      "teardrop_parameters": [
        {
          "td_allow_use_two_tracks": true,
          "td_curve_segcount": 0,
          "td_height_ratio": 1.0,
          "td_length_ratio": 0.5,
          "td_maxheight": 2.0,
          "td_maxlen": 1.0,
          "td_on_pad_in_zone": false,
          "td_target_name": "td_round_shape",
          "td_width_to_size_filter_ratio": 0.9
        },
        {
          "td_allow_use_two_tracks": true,
          "td_curve_segcount": 0,
          "td_height_ratio": 1.0,
          "td_length_ratio": 0.5,
          "td_maxheight": 2.0,
          "td_maxlen": 1.0,
          "td_on_pad_in_zone": false,
          "td_target_name": "td_rect_shape",
          "td_width_to_size_filter_ratio": 0.9
        },
        {
          "td_allow_use_two_tracks": true,
          "td_curve_segcount": 0,
          "td_height_ratio": 1.0,
          "td_length_ratio": 0.5,
          "td_maxheight": 2.0,
          "td_maxlen": 1.0,
          "td_on_pad_in_zone": false,
          "td_target_name": "td_track_end",
          "td_width_to_size_filter_ratio": 0.9
        }
      ],
      "track_widths": [
        0.0,
        0.127,
        0.2,
        0.2032,
        0.24,
        0.25,
        0.3,
        0.35,
        0.364,
        0.4,
        0.45,
        0.6,
        0.8,
        1.15
      ],
      "tuning_pattern_settings": {
        "diff_pair_defaults": {
          "corner_radius_percentage": 80,
          "corner_style": 1,
          "max_amplitude": 1.0,
          "min_amplitude": 0.2,
          "single_sided": false,
          "spacing": 1.0
        },
        "diff_pair_skew_defaults": {
          "corner_radius_percentage": 80,
          "corner_style": 1,
          "max_amplitude": 1.0,
          "min_amplitude": 0.2,
          "single_sided": false,
          "spacing": 0.6
        },
        "single_track_defaults": {
          "corner_radius_percentage": 80,
          "corner_style": 1,
          "max_amplitude": 1.0,
          "min_amplitude": 0.2,
          "single_sided": false,
          "spacing": 0.6
        }
      },
      "via_dimensions": [
        {
          "diameter": 0.0,
          "drill": 0.0
        },
        {
          "diameter": 0.4,
          "drill": 0.3
        },
        {
          "diameter": 0.45,
          "drill": 0.3
        },
        {
          "diameter": 0.7,
          "drill": 0.4
        }
      ],
      "zones_allow_external_fillets": false,
      "zones_use_no_outline": true
    },
    "ipc2581": {
      "dist": "",
      "distpn": "",
      "internal_id": "",
      "mfg": "",
      "mpn": ""
    },
    "layer_pairs": [
      {
        "bottomLayer": 10,
        "enabled": true,
        "topLayer": 0
      }
    ],
    "layer_presets": [],
    "viewports": []
  },
  "boards": [],
  "cvpcb": {
    "equivalence_files": []
  },
  "erc": {
    "erc_exclusions": [],
    "meta": {
      "version": 0
    },
    "pin_map": [
      [
        0,
        0,
        0,
        0,
        0,
        0,
        1,
        0,
        0,
        0,
        0,
        2
      ],
      [
        0,
        2,
        0,
        1,
        0,
        0,
        1,
        0,
        2,
        2,
        2,
        2
      ],
      [
        0,
        0,
        0,
        0,
        0,
        0,
        1,
        0,
        1,
        0,
        1,
        2
      ],
      [
        0,
        1,
        0,
        0,
        0,
        0,
        1,
        1,
        2,
        1,
        1,
        2
      ],
      [
        0,
        0,
        0,
        0,
        0,
        0,
        1,
        0,
        0,
        0,
        0,
        2
      ],
      [
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        0,
        2
      ],
      [
        1,
        1,
        1,
        1,
        1,
        0,
        1,
        1,
        1,
        1,
        1,
        2
      ],
      [
        0,
        0,
        0,
        1,
        0,
        0,
        1,
        0,
        0,
        0,
        0,
        2
      ],
      [
        0,
        2,
        1,
        2,
        0,
        0,
        1,
        0,
        2,
        2,
        2,
        2
      ],
      [
        0,
        2,
        0,
        1,
        0,
        0,
        1,
        0,
        2,
        0,
        0,
        2
      ],
      [
        0,
        2,
        1,
        1,
        0,
        0,
        1,
        0,
        2,
        0,
        0,
        2
      ],
      [
        2,
        2,
        2,
        2,
        2,
        2,
        2,
        2,
        2,
        2,
        2,
        2
      ]
    ],
    "rule_severities": {
      "bus_definition_conflict": "error",
      "bus_entry_needed": "error",
      "bus_label_syntax": "error",
      "bus_to_bus_conflict": "error",
      "bus_to_net_conflict": "error",
      "conflicting_netclasses": "error",
      "different_unit_footprint": "error",
      "different_unit_net": "error",
      "duplicate_reference": "error",
      "duplicate_sheet_names": "error",
      "endpoint_off_grid": "warning",
      "extra_units": "error",
      "footprint_filter": "ignore",
      "footprint_link_issues": "warning",
      "four_way_junction": "ignore",
      "global_label_dangling": "warning",
      "hier_label_mismatch": "error",
      "label_dangling": "error",
      "label_multiple_wires": "warning",
      "lib_symbol_issues": "warning",
      "lib_symbol_mismatch": "warning",
      "missing_bidi_pin": "warning",
      "missing_input_pin": "warning",
      "missing_power_pin": "error",
      "missing_unit": "warning",
      "multiple_net_names": "ignore",
      "net_not_bus_member": "warning",
      "no_connect_connected": "warning",
      "no_connect_dangling": "warning",
      "pin_not_connected": "error",
      "pin_not_driven": "error",
      "pin_to_pin": "error",
      "power_pin_not_driven": "error",
      "same_local_global_label": "warning",
      "similar_label_and_power": "warning",
      "similar_labels": "warning",
      "similar_power": "warning",
      "simulation_model_issue": "ignore",
      "single_global_label": "warning",
      "unannotated": "error",
      "unconnected_wire_endpoint": "warning",
      "undefined_netclass": "error",
      "unit_value_mismatch": "error",
      "unresolved_variable": "error",
      "wire_dangling": "error"
    }
  },
  "libraries": {
    "pinned_footprint_libs": [],
    "pinned_symbol_libs": []
  },
  "meta": {
    "filename": "praline.kicad_pro",
    "version": 3
  },
  "net_settings": {
    "classes": [
      {
        "bus_width": 12,
        "clearance": 0.127,
        "diff_pair_gap": 0.175,
        "diff_pair_via_gap": 0.25,
        "diff_pair_width": 0.2032,
        "line_style": 0,
        "microvia_diameter": 0.4,
        "microvia_drill": 0.3,
        "name": "Default",
        "pcb_color": "rgba(0, 0, 0, 0.000)",
        "priority": 2147483647,
        "schematic_color": "rgba(0, 0, 0, 0.000)",
        "track_width": 0.127,
        "via_diameter": 0.45,
        "via_drill": 0.3,
        "wire_width": 6
      },
      {
        "clearance": 0.127,
        "diff_pair_gap": 0.4,
        "diff_pair_width": 0.3,
        "microvia_diameter": 0.4,
        "microvia_drill": 0.3,
        "name": "diff100",
        "pcb_color": "rgba(0, 0, 0, 0.000)",
        "priority": 0,
        "schematic_color": "rgba(0, 0, 0, 0.000)",
        "track_width": 0.3,
        "via_diameter": 0.45,
        "via_drill": 0.3
      },
      {
        "bus_width": 12,
        "clearance": 0.127,
        "diff_pair_gap": 0.127,
        "diff_pair_width": 0.25,
        "line_style": 0,
        "microvia_diameter": 0.4,
        "microvia_drill": 0.3,
        "name": "diff90",
        "pcb_color": "rgba(0, 0, 0, 0.000)",
        "priority": 1,
        "schematic_color": "rgba(0, 0, 0, 0.000)",
        "track_width": 0.25,
        "via_diameter": 0.45,
        "via_drill": 0.3,
        "wire_width": 6
      }
    ],
    "meta": {
      "version": 4
    },
    "net_colors": null,
    "netclass_assignments": null,
    "netclass_patterns": [
      {
        "netclass": "diff90",
        "pattern": "*/D+"
      },
      {
        "netclass": "diff90",
        "pattern": "*/D-"
      },
      {
        "netclass": "diff90",
        "pattern": "*/USB_DATA.D+"
      },
      {
        "netclass": "diff90",
        "pattern": "*/USB_DATA.D-"
      },
      {
        "netclass": "diff100",
        "pattern": "*/MIX_IN+"
      },
      {
        "netclass": "diff100",
        "pattern": "*/MIX_IN-"
      },
      {
        "netclass": "diff100",
        "pattern": "*/MIX_OUT+"
      },
      {
        "netclass": "diff100",
        "pattern": "*/MIX_OUT-"
      }
    ]
  },
  "pcbnew": {
    "last_paths": {
      "gencad": "",
      "idf": "",
      "netlist": "praline.net",
      "plot": "gerbers",
      "pos_files": "",
      "specctra_dsn": "",
      "step": "",
      "svg": "",
      "vrml": ""
    },
    "page_layout_descr_file": ""
  },
  "schematic": {
    "annotate_start_num": 0,
    "bom_export_filename": "",
    "bom_fmt_presets": [],
    "bom_fmt_settings": {
      "field_delimiter": ",",
      "keep_line_breaks": false,
      "keep_tabs": false,
      "name": "CSV",
      "ref_delimiter": ",",
      "ref_range_delimiter": "",
      "string_delimiter": "\""
    },
    "bom_presets": [],
    "bom_settings": {
      "exclude_dnp": false,
      "fields_ordered": [
        {
          "group_by": false,
          "label": "Reference",
          "name": "Reference",
          "show": true
        },
        {
          "group_by": false,
          "label": "Value",
          "name": "Value",
          "show": true
        },
        {
          "group_by": false,
          "label": "Datasheet",
          "name": "Datasheet",
          "show": true
        },
        {
          "group_by": false,
          "label": "Footprint",
          "name": "Footprint",
          "show": true
        },
        {
          "group_by": false,
          "label": "Qty",
          "name": "${QUANTITY}",
          "show": false
        },
        {
          "group_by": false,
          "label": "DNP",
          "name": "${DNP}",
          "show": false
        },
        {
          "group_by": false,
          "label": "#",
          "name": "${ITEM_NUMBER}",
          "show": true
        },
        {
          "group_by": true,
          "label": "Manufacturer",
          "name": "Manufacturer",
          "show": true
        },
        {
          "group_by": true,
          "label": "Part Number",
          "name": "Part Number",
          "show": true
        },
        {
          "group_by": false,
          "label": "Substitution",
          "name": "Substitution",
          "show": false
        },
        {
          "group_by": false,
          "label": "Description",
          "name": "Description",
          "show": true
        },
        {
          "group_by": false,
          "label": "Note",
          "name": "Note",
          "show": false
        },
        {
          "group_by": false,
          "label": "Sim.Pins",
          "name": "Sim.Pins",
          "show": false
        },
        {
          "group_by": false,
          "label": "Tolerance",
          "name": "Tolerance",
          "show": true
        }
      ],
      "filter_string": "",
      "group_symbols": true,
      "include_excluded_from_bom": false,
      "name": "",
      "sort_asc": true,
      "sort_field": "Reference"
    },
    "connection_grid_size": 50.0,
    "drawing": {
      "dashed_lines_dash_length_ratio": 12.0,
      "dashed_lines_gap_length_ratio": 3.0,
      "default_line_thickness": 6.0,
      "default_text_size": 60.0,
      "field_names": [],
      "intersheets_ref_own_page": false,
      "intersheets_ref_prefix": "",
      "intersheets_ref_short": false,
      "intersheets_ref_show": false,
      "intersheets_ref_suffix": "",
      "junction_size_choice": 3,
      "label_size_ratio": 0.25,
      "operating_point_overlay_i_precision": 3,
      "operating_point_overlay_i_range": "~A",
      "operating_point_overlay_v_precision": 3,
      "operating_point_overlay_v_range": "~V",
      "overbar_offset_ratio": 1.23,
      "pin_symbol_size": 0.0,
      "text_offset_ratio": 0.08
    },
    "legacy_lib_dir": "",
    "legacy_lib_list": [],
    "meta": {
      "version": 1
    },
    "net_format_name": "Pcbnew",
    "ngspice": {
      "fix_include_paths": true,
      "fix_passive_vals": false,
      "meta": {
        "version": 0
      },
      "model_mode": 0,
      "workbook_filename": ""
    },
    "page_layout_descr_file": "",
    "plot_directory": "",
    "space_save_all_events": true,
    "spice_adjust_passive_values": false,
    "spice_current_sheet_as_root": false,
    "spice_external_command": "spice \"%I\"",
    "spice_model_current_sheet_as_root": true,
    "spice_save_all_currents": false,
    "spice_save_all_dissipations": false,
    "spice_save_all_voltages": false,
    "subpart_first_id": 65,
    "subpart_id_separator": 0
  },
  "sheets": [
    [
      "dba4afc6-760f-46cb-a936-032b76448f03",
      "Root"
    ],
    [
      "00000000-0000-0000-0000-00005037043e",
      "Microcontroller"
    ],
    [
      "00000000-0000-0000-0000-000050370666",
      "IF Transceiver"
    ],
    [
      "00000000-0000-0000-0000-0000503bb638",
      "RF Front End"
    ],
    [
      "e983c194-621e-40aa-896b-a14f1ba8c8f7",
      "FPGA"
    ],
    [
      "786d04ae-a477-4586-9df0-2e24f8eeece5",
      "Mixer"
    ],
    [
      "03930949-b2dd-4151-b892-cf65af2345ca",
      "ADC, DAC"
    ],
    [
      "82363729-914a-4be2-9abc-c6e1e42dff36",
      "Clock Generator"
    ],
    [
      "582bbebf-22b2-4cb5-8b91-2c73dca44d28",
      "Power"
    ],
    [
      "b52297f1-63c0-4931-9c57-b3b41fe2150b",
      "Switch Control"
    ],
    [
      "6d5f4e7f-ee82-4199-9ff1-858fb0dc14cc",
      "USB"
    ],
    [
      "ff1d794b-c145-4e84-b14d-8e74ee8b4d43",
      "Image Reject Filters"
    ]
  ],
  "text_variables": {
    "COPYRIGHT": "Copyright 2012-2025 Great Scott Gadgets",
    "DATE": "2025-11-12",
    "LICENSE": "Licensed under the CERN-OHL-P v2",
    "TITLE": "Praline",
    "VERSION": "1.2.1"
  }
}