MAX98091ETM+

{
  "slug": "max98091etm",
  "version": "0.1.0",
  "type": "component",
  "description": "Maxim Integrated Audio Interface ICs, TQFN-48(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "max98091etm+",
    "factory-2.0.0",
    "extractor-text"
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    "README.md",
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    "max98091etm.kicad_mod",
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    "max98091etm.lbr",
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    "docs/max98091etm-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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    "max98091etm-hero.overlay.json",
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  "component": {
    "mpn": "MAX98091ETM+",
    "manufacturer": "Maxim Integrated",
    "package": "TQFN-48(6x6)",
    "pin_count": 49,
    "category": "Interface ICs",
    "subcategory": "Audio Interface ICs",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/MAX98091.pdf",
    "parts": {
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      "footprint": "max98091etm.kicad_mod",
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      "lbr": "max98091etm.lbr"
    },
    "distributor_links": {
      "lcsc": "C1521521",
      "digikey": "MAX98091ETM+-ND",
      "mouser": "700-MAX98091ETM+"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T15:50:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MAX98091ETM+-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "700-MAX98091ETM+",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C1N",
        "type": "passive",
        "description": "Charge-pump flying capacitor negative terminal; connect a 1µF ceramic capacitor between C1N and C1P."
      },
      {
        "number": "2",
        "name": "HPGND",
        "type": "power_in",
        "description": "Headphone ground."
      },
      {
        "number": "3",
        "name": "CPVSS",
        "type": "power_out",
        "description": "Inverting charge-pump output; bypass to HPGND with a 1µF ceramic capacitor."
      },
      {
        "number": "4",
        "name": "CPVDD",
        "type": "power_out",
        "description": "Noninverting charge-pump output; bypass to HPGND with a 1µF ceramic capacitor."
      },
      {
        "number": "5",
        "name": "HPL",
        "type": "output",
        "description": "Left-channel headphone output."
      },
      {
        "number": "6",
        "name": "HPSNS",
        "type": "input",
        "description": "Headphone amplifier ground sense; connect to the headphone jack ground terminal or to ground."
      },
      {
        "number": "7",
        "name": "HPR",
        "type": "output",
        "description": "Right-channel headphone output."
      },
      {
        "number": "8",
        "name": "JACKSNS",
        "type": "input",
        "description": "Jack detection input; connect to the microphone terminal of the headset jack to detect jack activity."
      },
      {
        "number": "9",
        "name": "RCVP/LOUTL",
        "type": "output",
        "description": "Positive earpiece amplifier output / left line output."
      },
      {
        "number": "10",
        "name": "RCVN/LOUTR",
        "type": "output",
        "description": "Negative earpiece amplifier output / right line output."
      },
      {
        "number": "11",
        "name": "SPKRGND",
        "type": "power_in",
        "description": "Right speaker amplifier ground."
      },
      {
        "number": "12",
        "name": "SPKRN",
        "type": "output",
        "description": "Negative right-channel Class D speaker output."
      },
      {
        "number": "13",
        "name": "SPKRP",
        "type": "output",
        "description": "Positive right-channel Class D speaker output."
      },
      {
        "number": "14",
        "name": "SPKVDD",
        "type": "power_in",
        "description": "Speaker and microphone bias power supply; bypass each to SPK_GND with 1µF plus a single shared 10µF bulk capacitor."
      },
      {
        "number": "15",
        "name": "SPKVDD",
        "type": "power_in",
        "description": "Speaker and microphone bias power supply; bypass each to SPK_GND with 1µF plus a single shared 10µF bulk capacitor."
      },
      {
        "number": "16",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connection; not internally connected."
      },
      {
        "number": "17",
        "name": "SPKLN",
        "type": "output",
        "description": "Negative left-channel Class D speaker output."
      },
      {
        "number": "18",
        "name": "SPKLP",
        "type": "output",
        "description": "Positive left-channel Class D speaker output."
      },
      {
        "number": "19",
        "name": "SPKLGND",
        "type": "power_in",
        "description": "Left speaker amplifier ground."
      },
      {
        "number": "20",
        "name": "IN2/DMC1",
        "type": "input",
        "description": "Negative differential microphone 1 input or single-ended line input 2; AC-couple with a series 1µF capacitor; can be retasked as digital microphone 1 clock output."
      },
      {
        "number": "21",
        "name": "IN1/DMD1",
        "type": "input",
        "description": "Positive differential microphone 1 input or single-ended line input 1; AC-couple with a series 1µF capacitor; can be retasked as digital microphone 1 data input."
      },
      {
        "number": "22",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connection; not internally connected."
      },
      {
        "number": "23",
        "name": "IN3",
        "type": "input",
        "description": "Positive differential microphone 2 input or single-ended line input 3; AC-couple with a series 1µF capacitor."
      },
      {
        "number": "24",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connection; not internally connected."
      },
      {
        "number": "25",
        "name": "IN5/DMD2",
        "type": "input",
        "description": "Auxiliary positive differential microphone input or single-ended line input; AC-couple with a series 1µF capacitor; can be retasked as digital microphone 2 data input."
      },
      {
        "number": "26",
        "name": "IN4",
        "type": "input",
        "description": "Negative differential microphone 2 input or single-ended line input 4; AC-couple with a series 1µF capacitor."
      },
      {
        "number": "27",
        "name": "IN6/DMC2",
        "type": "input",
        "description": "Auxiliary negative differential microphone input or single-ended line input; AC-couple with a series 1µF capacitor; can be retasked as digital microphone 2 clock output."
      },
      {
        "number": "28",
        "name": "MICBIAS",
        "type": "power_out",
        "description": "Low-noise microphone bias voltage output; bypass to SPKLGND with 1µF; an external resistor in the 2.2kΩ to 1kΩ range sets the microphone current."
      },
      {
        "number": "29",
        "name": "REF",
        "type": "passive",
        "description": "Converter reference; bypass to AGND with a 2.2µF capacitor."
      },
      {
        "number": "30",
        "name": "BIAS",
        "type": "passive",
        "description": "Common-mode reference voltage; bypass to AGND with a 1µF capacitor."
      },
      {
        "number": "31",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "32",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply; bypass to AGND with a 1µF capacitor."
      },
      {
        "number": "33",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connection; not internally connected."
      },
      {
        "number": "34",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connection; not internally connected."
      },
      {
        "number": "35",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connection; not internally connected."
      },
      {
        "number": "36",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital power supply; bypass to DGND with a 1µF capacitor."
      },
      {
        "number": "37",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "38",
        "name": "DVDDIO",
        "type": "power_in",
        "description": "Digital audio interface power supply input; bypass to DGND with a 1µF capacitor."
      },
      {
        "number": "39",
        "name": "SDOUT",
        "type": "output",
        "description": "Digital audio serial-data ADC output; output voltage referenced to DVDDIO."
      },
      {
        "number": "40",
        "name": "SDIN",
        "type": "input",
        "description": "Digital audio serial-data DAC input; input voltage referenced to DVDDIO."
      },
      {
        "number": "41",
        "name": "LRCLK",
        "type": "bidirectional",
        "description": "Digital audio left-right clock; input in slave mode and output in master mode; referenced to DVDDIO."
      },
      {
        "number": "42",
        "name": "BCLK",
        "type": "bidirectional",
        "description": "Digital audio bit clock; input in slave mode and output in master mode; referenced to DVDDIO."
      },
      {
        "number": "43",
        "name": "IRQ",
        "type": "output",
        "description": "Active-low hardware interrupt output; connect a 10kΩ pullup resistor to VDD."
      },
      {
        "number": "44",
        "name": "MCLK",
        "type": "input",
        "description": "Master clock input; acceptable input frequency range is 10MHz to 60MHz."
      },
      {
        "number": "45",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial-clock input; connect a pullup resistor to DVDD for full output swing."
      },
      {
        "number": "46",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial-data input/output; connect a pullup resistor to DVDD for full output swing."
      },
      {
        "number": "47",
        "name": "HPVDD",
        "type": "power_in",
        "description": "Headphone power supply; bypass to HPGND with a 10µF bulk capacitor in parallel with a 0.1µF capacitor placed as close as possible to the device."
      },
      {
        "number": "48",
        "name": "C1P",
        "type": "passive",
        "description": "Charge-pump flying capacitor positive terminal; connect a 1µF ceramic capacitor between C1N and C1P."
      },
      {
        "number": "49",
        "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": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pinout taken from the 48-TQFN bump/pin table (pages 69-71). Page 69 gives the package as 6mm x 6mm x"
        ],
        "pages_sent": 17,
        "cost_usd": 0.0562,
        "at": "2026-10-28T15:49:51"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/MAX98091.pdf",
        "pages": 178,
        "sha256": "5892bdd78a17bc0e",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}