AK4558EN

{
  "slug": "ak4558en",
  "version": "0.1.0",
  "type": "component",
  "description": "Asahi Kasei Microdevices Audio Interface ICs, QFN-28-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "ak4558en",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ak4558en.kicad_sym",
    "ak4558en.kicad_mod",
    "ak4558en.glb",
    "ak4558en.step",
    "ak4558en.lbr",
    "docs/hero.png",
    "docs/ak4558en-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ak4558en-hero.glb",
    "ak4558en-hero.overlay.json",
    "ak4558en-etched.glb"
  ],
  "component": {
    "mpn": "AK4558EN",
    "manufacturer": "Asahi Kasei Microdevices",
    "package": "QFN-28-EP(5x5)",
    "pin_count": 29,
    "category": "Interface ICs",
    "subcategory": "Audio Interface ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f6289c5784279025cce215cf0689f555.pdf",
    "parts": {
      "symbol": "ak4558en.kicad_sym",
      "footprint": "ak4558en.kicad_mod",
      "model_3d": "ak4558en-hero.glb",
      "model_3d_plain": "ak4558en-etched.glb",
      "model_3d_step": "ak4558en-etched.step",
      "model_3d_step_plain": "ak4558en.step",
      "lbr": "ak4558en.lbr"
    },
    "distributor_links": {
      "lcsc": "C2649369",
      "digikey": "974-1083-2-ND",
      "mouser": "412-AK4558EN"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:04:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "974-1083-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "412-AK4558EN",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCOC",
        "type": "output",
        "description": "PS=H: connect to VSS; PS=L: loop filter output for the PLL circuit, connect to VSS unless PLL mode is used."
      },
      {
        "number": "2",
        "name": "PS",
        "type": "input",
        "description": "Parallel/Serial mode select (L: Serial, H: Parallel); do not change while PDN is H."
      },
      {
        "number": "3",
        "name": "CKS3",
        "type": "input",
        "description": "Mode setting pin #3."
      },
      {
        "number": "4",
        "name": "CKS2",
        "type": "input",
        "description": "Mode setting pin #2."
      },
      {
        "number": "5",
        "name": "CKS1",
        "type": "input",
        "description": "Mode setting pin #1."
      },
      {
        "number": "6",
        "name": "CKS0/TDMI",
        "type": "input",
        "description": "Mode setting pin #0 when PS=H; TDM data input when PS=L."
      },
      {
        "number": "7",
        "name": "LRCK",
        "type": "bidirectional",
        "description": "Input/output channel clock; with PDN=L it outputs L in master mode and Hi-Z in slave mode."
      },
      {
        "number": "8",
        "name": "SDTO",
        "type": "output",
        "description": "Audio serial data output; outputs L when PDN is L."
      },
      {
        "number": "9",
        "name": "BICK",
        "type": "bidirectional",
        "description": "Audio serial data clock input/output; with PDN=L it outputs L in master mode and Hi-Z in slave mode."
      },
      {
        "number": "10",
        "name": "SDTI",
        "type": "input",
        "description": "Audio serial data input."
      },
      {
        "number": "11",
        "name": "MCKI",
        "type": "input",
        "description": "External master clock input."
      },
      {
        "number": "12",
        "name": "TVDD",
        "type": "power_in",
        "description": "LDO and digital I/F power supply, 1.7 to 3.6V (LDOE=L) or 2.4 to 3.6V (LDOE=H)."
      },
      {
        "number": "13",
        "name": "VSS2",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "14",
        "name": "VDD18",
        "type": "bidirectional",
        "description": "LDO output when LDOE=H (needs 1µF±50% capacitor to VSS2); 1.8V power input (1.7 to 1.98V) when LDOE=L."
      },
      {
        "number": "15",
        "name": "PDN",
        "type": "input",
        "description": "Power-down and reset pin (L: power-down/reset, H: normal operation); reset once by bringing it L."
      },
      {
        "number": "16",
        "name": "PMADL/SCL",
        "type": "input",
        "description": "ADC Lch power management when PS=H; control data clock (I2C) when PS=L."
      },
      {
        "number": "17",
        "name": "PMADR/SDA",
        "type": "bidirectional",
        "description": "ADC Rch power management input when PS=H; control data input/output (I2C) when PS=L."
      },
      {
        "number": "18",
        "name": "PMDAL/CAD0",
        "type": "input",
        "description": "DAC Lch power management when PS=H; chip address 0 when PS=L."
      },
      {
        "number": "19",
        "name": "PMDAR/CAD1",
        "type": "input",
        "description": "DAC Rch power management when PS=H; chip address 1 when PS=L."
      },
      {
        "number": "20",
        "name": "LOPS",
        "type": "input",
        "description": "DAC output power-save mode control when PS=H; must be connected to VSS2 when PS=L."
      },
      {
        "number": "21",
        "name": "LDOE",
        "type": "input",
        "description": "LDO enable (L: disable, H: enable)."
      },
      {
        "number": "22",
        "name": "LIN",
        "type": "input",
        "description": "Lch analog input."
      },
      {
        "number": "23",
        "name": "RIN",
        "type": "input",
        "description": "Rch analog input."
      },
      {
        "number": "24",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply, 2.4 to 3.6V (typ. 3.3V)."
      },
      {
        "number": "25",
        "name": "VSS1",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "26",
        "name": "VCOM",
        "type": "output",
        "description": "Common voltage output, 0.5 x AVDD; connect 1µF±50% capacitor to VSS1."
      },
      {
        "number": "27",
        "name": "LOUT",
        "type": "output",
        "description": "Lch analog output (100kohm pulldown in power-down)."
      },
      {
        "number": "28",
        "name": "ROUT",
        "type": "output",
        "description": "Rch analog output (100kohm pulldown in power-down)."
      },
      {
        "number": "29",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The exposed pad on the bottom must be connected to VSS (page 7 note), but the datasheet gives it no ; VDD18 is an LDO output when LDOE=H and a power input when LDOE=L. No single ERC type fits, so bidire; The datasheet lists a 28-pin QFN (AK4558EN) but does not state the exposed-pad size or a package cod"
        ],
        "pages_sent": 23,
        "cost_usd": 0.1878,
        "at": "2026-10-27T01:04:05"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f6289c5784279025cce215cf0689f555.pdf",
        "pages": 94,
        "sha256": "c0c65b703fb88c86",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 29,
        "described": 29,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ak4558en.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.92
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e9d6d740f505b03e5aa0ac826330f9e269344b84656d051f50eb07ac162749eb",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ak4558en-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.92
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6bd38b4a465efdc5476544c8e53954eb6162e9b972f6fe2ea003caf59686c8c9",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}