LMH1981MTX

{
  "slug": "lmh1981mtx",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Clock Generators, PLLs, Frequency Synthesizers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "clock-timing",
    "lmh1981mtx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lmh1981mtx.kicad_sym",
    "lmh1981mtx.kicad_mod",
    "lmh1981mtx.glb",
    "lmh1981mtx.step",
    "lmh1981mtx.lbr",
    "docs/hero.png",
    "docs/lmh1981mtx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lmh1981mtx-hero.glb",
    "lmh1981mtx-hero.overlay.json"
  ],
  "component": {
    "mpn": "LMH1981MTX",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "Clock/Timing",
    "subcategory": "Clock Generators, PLLs, Frequency Synthesizers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lmh1981",
    "parts": {
      "symbol": "lmh1981mtx.kicad_sym",
      "footprint": "lmh1981mtx.kicad_mod",
      "model_3d": "lmh1981mtx-hero.glb",
      "model_3d_plain": "lmh1981mtx.glb",
      "model_3d_step": "lmh1981mtx-etched.step",
      "model_3d_step_plain": "lmh1981mtx.step",
      "lbr": "lmh1981mtx.lbr"
    },
    "distributor_links": {
      "lcsc": "C2652756"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T02:03:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "REXT",
        "type": "input",
        "description": "External resistor connection for bias current setting"
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference"
      },
      {
        "number": "3",
        "name": "VCC1",
        "type": "power_in",
        "description": "Supply voltage input, nominal 3.3V or 5V"
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Video input for composite/component analog signals"
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference"
      },
      {
        "number": "6",
        "name": "VCC2",
        "type": "power_in",
        "description": "Supply voltage input, nominal 3.3V or 5V"
      },
      {
        "number": "7",
        "name": "HSOUT",
        "type": "output",
        "description": "Horizontal Sync output with low jitter on leading edge"
      },
      {
        "number": "8",
        "name": "VSOUT",
        "type": "output",
        "description": "Vertical Sync output"
      },
      {
        "number": "9",
        "name": "VFOUT",
        "type": "output",
        "description": "Video Format output as 11-bit serial binary horizontal line count"
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference"
      },
      {
        "number": "11",
        "name": "VCC3",
        "type": "power_in",
        "description": "Supply voltage input, nominal 3.3V or 5V"
      },
      {
        "number": "12",
        "name": "CSOUT",
        "type": "output",
        "description": "Composite Sync output"
      },
      {
        "number": "13",
        "name": "BPOUT",
        "type": "output",
        "description": "Burst/Back Porch Timing output"
      },
      {
        "number": "14",
        "name": "OEOUT",
        "type": "output",
        "description": "Odd/Even Field output"
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 6,
        "cost_usd": 0.0946,
        "at": "2026-10-07T02:03:26"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lmh1981",
        "pages": 28,
        "sha256": "e5fbb9ad7587bc0c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.0
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lmh1981mtx-etched.step",
        "role": "eda",
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        "checked": "2026-10-07",
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    ]
  }
}