LMH1297RTVT

{
  "slug": "lmh1297rtvt",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Video Interface ICs, WQFN-32-EP(5x5). Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "lmh1297rtvt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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    "path": "docs/hero.png"
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    "lmh1297rtvt.step",
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    "docs/lmh1297rtvt-datasheet.pdf",
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  "component": {
    "mpn": "LMH1297RTVT",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "Interface",
    "subcategory": "Video Interface ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lmh1297",
    "parts": {
      "symbol": "lmh1297rtvt.kicad_sym",
      "footprint": "lmh1297rtvt.kicad_mod",
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      "lbr": "lmh1297rtvt.lbr"
    },
    "distributor_links": {
      "lcsc": "C2676804",
      "digikey": "296-48591-2-ND",
      "mouser": "595-LMH1297RTVT"
    },
    "distributor_check": {
      "checked_at": "2026-09-29T16:41:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-48591-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-LMH1297RTVT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SDI_IO+",
        "type": "bidirectional",
        "description": "Single-ended complementary input or output with on-chip 75-\u03a9 termination; configurable as 75-\u03a9 adaptive cable equalizer input in EQ mode or 75-\u03a9 cable driver output in CD mode for SMPTE video up to 11.88 Gbps."
      },
      {
        "number": "2",
        "name": "SDI_IO-",
        "type": "bidirectional",
        "description": "Single-ended complementary input or output with on-chip 75-\u03a9 termination; configurable as 75-\u03a9 adaptive cable equalizer input in EQ mode or 75-\u03a9 cable driver output in CD mode for SMPTE video up to 11.88 Gbps."
      },
      {
        "number": "3",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference."
      },
      {
        "number": "4",
        "name": "OUT0_SEL",
        "type": "input",
        "description": "Logic control enabling 100-\u03a9 host-side output driver at OUT0\u00b1; internally pulled high by default to disable OUT0."
      },
      {
        "number": "5",
        "name": "EQ/CD_SEL",
        "type": "input",
        "description": "Logic control selecting signal direction as adaptive equalizer (EQ mode, internally pulled low) or cable driver (CD mode) for bidirectional SDI_IO."
      },
      {
        "number": "6",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference."
      },
      {
        "number": "7",
        "name": "SDI_OUT-",
        "type": "output",
        "description": "Single-ended complementary 75-\u03a9 output with on-chip termination and return loss network; used as loop-through output in EQ mode or secondary cable driver output in CD mode."
      },
      {
        "number": "8",
        "name": "SDI_OUT+",
        "type": "output",
        "description": "Single-ended complementary 75-\u03a9 output with on-chip termination and return loss network; used as loop-through output in EQ mode or secondary cable driver output in CD mode."
      },
      {
        "number": "9",
        "name": "HOST_EQ0",
        "type": "input",
        "description": "4-level control pin selecting output amplitude and de-emphasis for OUT0\u00b1 in EQ mode or equalizer boost setting for IN0\u00b1 in CD mode."
      },
      {
        "number": "10",
        "name": "RSV1",
        "type": "unconnected",
        "description": "Reserved pin; do not connect."
      },
      {
        "number": "11",
        "name": "SS_N/ADDR0",
        "type": "input",
        "description": "SPI Target Select (active low, 2.5-V LVCMOS, internally pulled high) in SPI mode or SMBus address strap (4-level) in SMBus mode."
      },
      {
        "number": "12",
        "name": "MODE_SEL",
        "type": "input",
        "description": "4-level control pin selecting serial interface mode: SPI at Level F (float) or SMBus at Level L (1 k\u03a9 to VSS)."
      },
      {
        "number": "13",
        "name": "MOSI/SDA",
        "type": "input",
        "description": "SPI Master Output Slave Input (2.5-V LVCMOS input) in SPI mode or SMBus bidirectional data line (3.3-V tolerant, open-drain) in SMBus mode; external pullup recommended in SPI mode."
      },
      {
        "number": "14",
        "name": "SDI_OUT_SEL",
        "type": "input",
        "description": "Logic control enabling 75-\u03a9 output driver at SDI_OUT\u00b1; internally pulled high by default to disable SDI_OUT."
      },
      {
        "number": "15",
        "name": "RSV2",
        "type": "unconnected",
        "description": "Reserved pin; do not connect."
      },
      {
        "number": "16",
        "name": "RSV3",
        "type": "unconnected",
        "description": "Reserved pin; do not connect."
      },
      {
        "number": "17",
        "name": "OUT_CTRL",
        "type": "input",
        "description": "4-level control pin selecting output signal routing and enabling or bypassing reclocker and cable equalizer."
      },
      {
        "number": "18",
        "name": "IN0-",
        "type": "input",
        "description": "Differential input from host video processor with on-chip 100-\u03a9 differential termination; requires external 4.7-\u00b5F AC-coupling capacitors for SMPTE applications."
      },
      {
        "number": "19",
        "name": "IN0+",
        "type": "input",
        "description": "Differential input from host video processor with on-chip 100-\u03a9 differential termination; requires external 4.7-\u00b5F AC-coupling capacitors for SMPTE applications."
      },
      {
        "number": "20",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference."
      },
      {
        "number": "21",
        "name": "VDD_CDR",
        "type": "power_in",
        "description": "2.5-V \u00b1 5% power supply for reclocker circuitry; connect to same supply as VIN with 0.1-\u00b5F bypass capacitor."
      },
      {
        "number": "22",
        "name": "OUT0-",
        "type": "output",
        "description": "Differential 100-\u03a9 output to host video processor with on-chip differential termination; requires external 4.7-\u00b5F AC-coupling capacitors for SMPTE applications."
      },
      {
        "number": "23",
        "name": "OUT0+",
        "type": "output",
        "description": "Differential 100-\u03a9 output to host video processor with on-chip differential termination; requires external 4.7-\u00b5F AC-coupling capacitors for SMPTE applications."
      },
      {
        "number": "24",
        "name": "SDI_VOD",
        "type": "input",
        "description": "4-level control pin selecting one of four output amplitudes (\u00b15% or nominal) for cable drivers at SDI_IO\u00b1 and SDI_OUT\u00b1."
      },
      {
        "number": "25",
        "name": "RSV5",
        "type": "unconnected",
        "description": "Reserved pin; do not connect."
      },
      {
        "number": "26",
        "name": "RSV4",
        "type": "unconnected",
        "description": "Reserved pin; do not connect."
      },
      {
        "number": "27",
        "name": "LOCK_N",
        "type": "tri_state",
        "description": "3.3-V tolerant, open-drain output indicating reclocker lock (active low); can be reconfigured via register for carrier detect (CD_N) or interrupt (INT_N) indication."
      },
      {
        "number": "28",
        "name": "MISO/ADDR1",
        "type": "output",
        "description": "SPI Master Input Slave Output (2.5-V LVCMOS output) in SPI mode or SMBus address strap (4-level) in SMBus mode."
      },
      {
        "number": "29",
        "name": "SCK/SCL",
        "type": "input",
        "description": "SPI Serial Clock (2.5-V LVCMOS input) in SPI mode or SMBus clock line (3.3-V tolerant, open-drain, bidirectional) in SMBus mode."
      },
      {
        "number": "30",
        "name": "VIN",
        "type": "power_in",
        "description": "2.5-V \u00b1 5% external power supply with 10-\u00b5F and 1-\u00b5F bulk decoupling and 0.1-\u00b5F bypass capacitor."
      },
      {
        "number": "31",
        "name": "VDD_LDO",
        "type": "power_out",
        "description": "Internal 1.8-V LDO regulator output for powering internal circuitry only; requires 1-\u00b5F and 0.1-\u00b5F bypass capacitors to VSS."
      },
      {
        "number": "32",
        "name": "ENABLE",
        "type": "input",
        "description": "Logic control enabling normal operation (logic high) or forcing power-down mode (logic low); internally pulled high by default."
      },
      {
        "number": "EP",
        "name": "Exposed Pad",
        "type": "power_in",
        "description": "Thermal and ground connection at package bottom; connect to VSS plane through 3 \u00d7 3 via array for thermal performance and mechanical robustness."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lmh1297",
        "pages": 53,
        "sha256": "2dc0a821b809e09a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}