PCM1774RGPR

{
  "slug": "pcm1774rgpr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments ADCs/DACs - Special Purpose, QFN-20(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "pcm1774rgpr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "pcm1774rgpr.kicad_sym",
    "pcm1774rgpr.kicad_mod",
    "pcm1774rgpr.glb",
    "pcm1774rgpr.step",
    "pcm1774rgpr.lbr",
    "docs/hero.png",
    "docs/pcm1774rgpr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pcm1774rgpr-hero.glb",
    "pcm1774rgpr-hero.overlay.json"
  ],
  "component": {
    "mpn": "PCM1774RGPR",
    "manufacturer": "Texas Instruments",
    "package": "QFN-20(4x4)",
    "pin_count": 21,
    "category": "Data Acquisition",
    "subcategory": "ADCs/DACs - Special Purpose",
    "datasheet": "https://www.ti.com/cn/lit/gpn/pcm1774",
    "parts": {
      "symbol": "pcm1774rgpr.kicad_sym",
      "footprint": "pcm1774rgpr.kicad_mod",
      "model_3d": "pcm1774rgpr-hero.glb",
      "model_3d_plain": "pcm1774rgpr.glb",
      "model_3d_step": "pcm1774rgpr-etched.step",
      "model_3d_step_plain": "pcm1774rgpr.step",
      "lbr": "pcm1774rgpr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2651659",
      "digikey": "296-46175-2-ND",
      "mouser": "595-PCM1774RGPR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T01:13:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-46175-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-PCM1774RGPR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "MODE",
        "type": "input",
        "description": "Two- or three-wire interface selection: LOW selects SPI, HIGH selects I2C."
      },
      {
        "number": "2",
        "name": "MS/ADR",
        "type": "input",
        "description": "Mode control select for the three-wire/two-wire interface."
      },
      {
        "number": "3",
        "name": "MD/SDA",
        "type": "bidirectional",
        "description": "Mode control data for the three-wire/two-wire interface (SDA in I2C mode)."
      },
      {
        "number": "4",
        "name": "MC/SCL",
        "type": "input",
        "description": "Mode control clock for the three-wire/two-wire interface (SCL in I2C mode)."
      },
      {
        "number": "5",
        "name": "DIN",
        "type": "input",
        "description": "Serial audio data input."
      },
      {
        "number": "6",
        "name": "VIO",
        "type": "power_in",
        "description": "Power supply for digital I/O, 1.71 V to 3.6 V."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply for digital core, 1.71 V to 3.6 V."
      },
      {
        "number": "8",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "9",
        "name": "SCKI",
        "type": "input",
        "description": "System clock input; supports common-audio clock frequencies from 12 MHz to 39.36 MHz (256 fS/384 fS)."
      },
      {
        "number": "10",
        "name": "BCK",
        "type": "bidirectional",
        "description": "Serial bit clock."
      },
      {
        "number": "11",
        "name": "LRCK",
        "type": "bidirectional",
        "description": "Left and right channel clock."
      },
      {
        "number": "12",
        "name": "PGND",
        "type": "power_in",
        "description": "Ground for the speaker power amplifier."
      },
      {
        "number": "13",
        "name": "VPA",
        "type": "power_in",
        "description": "Power supply for the power amplifier, 2.4 V to 3.6 V."
      },
      {
        "number": "14",
        "name": "HPOR/LOR",
        "type": "output",
        "description": "Headphone/line output for the L-channel, as labeled in Table 1."
      },
      {
        "number": "15",
        "name": "HPOL/LOL",
        "type": "output",
        "description": "Headphone/line output for the R-channel, as labeled in Table 1."
      },
      {
        "number": "16",
        "name": "VCOM",
        "type": "passive",
        "description": "Analog common voltage."
      },
      {
        "number": "17",
        "name": "AGND",
        "type": "power_in",
        "description": "Ground for analog circuitry."
      },
      {
        "number": "18",
        "name": "VCC",
        "type": "power_in",
        "description": "Analog power supply, 2.4 V to 3.6 V."
      },
      {
        "number": "19",
        "name": "AIN1R",
        "type": "input",
        "description": "Analog input 1 for the R-channel."
      },
      {
        "number": "20",
        "name": "AIN1L",
        "type": "input",
        "description": "Analog input 1 for the L-channel."
      },
      {
        "number": "21",
        "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-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Table 1 gives no I/O type for VCOM (listed only as '–'); 'passive' was assigned as an assumption. Ve; Table 1 labels pin 14 as HPOR/LOR and describes it as the L-channel, and pin 15 as HPOL/LOL describe; The pin-assignment diagram text on page 5 is garbled in extraction; pin numbers were taken from the ",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0465,
        "at": "2026-10-08T01:13:15"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/pcm1774",
        "pages": 50,
        "sha256": "89cd3f8c7b01041e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "pcm1774rgpr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pcm1774rgpr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5690303c2f1dd3458a046224a833b57c4c2f087e7027ab71d3e5334c01de60f1",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}