michele
65a91419a2
Each layout_rules SI requirement (diff/SE Z, skew, max length, spacing, ref plane, vias, layer, return, series R) is one PASS/FAIL/MARGIN finding with FACT and REQUIREMENT. USB/HDMI/PCIe/ETH/LVDS/DDR only; I2C GPIO CC and analog REGN are skipped. No invented 90 Ω.
107 lines
3.4 KiB
JSON
107 lines
3.4 KiB
JSON
{
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"type": "object",
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"properties": {
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"component_subtype": {
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"type": "string",
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"description": "Dotted taxonomy path, e.g. ic.mcu, ic.power.ldo"
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},
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"package_info": {
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"type": "object",
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"properties": {
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"base_family": {"type": "string"},
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"package": {"type": "string"},
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"pin_count": {"type": "integer"},
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"description": {"type": "string"}
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},
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"required": ["base_family", "package", "pin_count"]
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},
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"pintable": {
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"type": "array",
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"items": {
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"type": "object",
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"properties": {
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"number": {},
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"name": {"type": "string"},
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"description": {"type": "string"},
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"functions": {
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"type": "array",
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"items": {"type": "string"}
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}
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},
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"required": ["number", "name"]
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}
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},
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"absolute_maximum_ratings": {
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"type": "array",
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"description": "Abs-max rows, plus Vrwm and polarity/topology for ESD/TVS ICs.",
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"items": {
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"type": "object",
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"properties": {
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"parameter": {"type": "string"},
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"min": {"type": ["number", "null"]},
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"max": {"type": ["number", "null"]},
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"unit": {"type": "string"},
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"source_page": {"type": "integer"}
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},
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"required": ["parameter", "unit", "source_page"]
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}
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},
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"internal_features": {
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"type": "object",
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"properties": {
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"esd_clamp_pins": {"type": "array", "items": {"type": "string"}},
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"pullup_pins": {"type": "array", "items": {"type": "string"}},
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"analog_switch": {"type": "array", "items": {"type": "string"}}
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}
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},
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"layout_rules": {
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"type": "array",
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"description": "PCB layout constraints from typical-application / PCB layout pages. Empty if none stated.",
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"items": {
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"type": "object",
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"properties": {
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"kind": {
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"type": "string",
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"enum": [
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"decoupling_proximity",
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"thermal_via",
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"keepout",
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"length_match",
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"impedance",
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"max_length",
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"spacing",
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"ref_plane",
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"si_via",
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"layer",
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"series_resistor",
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"return_path",
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"si"
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]
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},
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"pin": {"type": ["string", "null"]},
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"cap_value_hint": {"type": ["string", "null"]},
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"max_distance_mm": {"type": ["number", "null"]},
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"same_layer": {"type": ["boolean", "null"]},
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"min_via_count": {"type": ["integer", "null"]},
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"max_via_count": {"type": ["integer", "null"]},
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"net_class": {"type": ["string", "null"]},
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"note": {"type": ["string", "null"]},
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"source_page": {"type": ["integer", "null"]},
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"z0_ohm": {"type": ["number", "null"]},
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"zdiff_ohm": {"type": ["number", "null"]},
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"tolerance_pct": {"type": ["number", "null"]},
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"z_min_ohm": {"type": ["number", "null"]},
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"z_max_ohm": {"type": ["number", "null"]},
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"topology": {"type": ["string", "null"]},
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"min_spacing_mm": {"type": ["number", "null"]},
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"value_ohms": {"type": ["number", "null"]},
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"ref_plane": {"type": ["string", "null"]},
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"parameter": {"type": ["string", "null"]}
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},
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"required": ["kind"]
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}
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}
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},
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"required": ["component_subtype", "package_info", "pintable"]
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}
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