PCM1770RGA

{
  "slug": "pcm1770rga",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments ADCs/DACs - Special Purpose, VQFN-20(4.2x4.2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "pcm1770rga",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "pcm1770rga.kicad_sym",
    "pcm1770rga.kicad_mod",
    "pcm1770rga.glb",
    "pcm1770rga.step",
    "pcm1770rga.lbr",
    "docs/hero.png",
    "docs/pcm1770rga-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pcm1770rga-hero.glb",
    "pcm1770rga-hero.overlay.json"
  ],
  "component": {
    "mpn": "PCM1770RGA",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-20(4.2x4.2)",
    "pin_count": 21,
    "category": "Data Acquisition",
    "subcategory": "ADCs/DACs - Special Purpose",
    "datasheet": "https://www.ti.com/cn/lit/gpn/pcm1770",
    "parts": {
      "symbol": "pcm1770rga.kicad_sym",
      "footprint": "pcm1770rga.kicad_mod",
      "model_3d": "pcm1770rga-hero.glb",
      "model_3d_plain": "pcm1770rga.glb",
      "model_3d_step": "pcm1770rga-etched.step",
      "model_3d_step_plain": "pcm1770rga.step",
      "lbr": "pcm1770rga.lbr"
    },
    "distributor_links": {
      "lcsc": "C1540084",
      "digikey": "2156-PCM1770RGA-ND",
      "mouser": "595-PCM1770RGA"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T22:01:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-PCM1770RGA-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-PCM1770RGA",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DATA",
        "type": "input",
        "description": "Serial audio data input."
      },
      {
        "number": "2",
        "name": "BCK",
        "type": "bidirectional",
        "description": "Serial bit clock that clocks the individual bits of DATA; it is an input from an external device in slave mode and is generated by the PCM1770 as an output in master mode."
      },
      {
        "number": "3",
        "name": "PD",
        "type": "input",
        "description": "Reset input; when low, the PCM1770 is powered down and all mode control registers are reset to default settings."
      },
      {
        "number": "4",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground that is the return for VCC."
      },
      {
        "number": "5",
        "name": "HGND",
        "type": "power_in",
        "description": "Analog ground that is the return for VHP."
      },
      {
        "number": "6",
        "name": "VCOM",
        "type": "passive",
        "description": "Decoupling capacitor connection; an external 10-µF capacitor from this terminal to analog ground is required for noise filtering, and the voltage here is 0.5 VHP nominal."
      },
      {
        "number": "7",
        "name": "HOUTR",
        "type": "output",
        "description": "R-channel analog signal output of the headphone amplifiers."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "9",
        "name": "HOUTL",
        "type": "output",
        "description": "L-channel analog signal output of the headphone amplifiers."
      },
      {
        "number": "10",
        "name": "AIN",
        "type": "input",
        "description": "Monaural analog signal mixer input that can be mixed with the outputs of the L- and R-channel DACs."
      },
      {
        "number": "11",
        "name": "VHP",
        "type": "power_in",
        "description": "Analog power supply for the headphone amplifier circuits; the voltage must be the same as VCC."
      },
      {
        "number": "12",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply for all analog circuits except the headphone amplifier, specified at 1.6 V to 3.6 V."
      },
      {
        "number": "13",
        "name": "MD",
        "type": "input",
        "description": "Mode control port serial data input that controls the operation mode of the PCM1770."
      },
      {
        "number": "14",
        "name": "MC",
        "type": "input",
        "description": "Mode control port serial bit clock input that clocks the individual bits of MD."
      },
      {
        "number": "15",
        "name": "MS",
        "type": "input",
        "description": "Mode control port select; the control port is active when this terminal is low."
      },
      {
        "number": "16",
        "name": "SCKI",
        "type": "input",
        "description": "System clock input."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "20",
        "name": "LRCK",
        "type": "bidirectional",
        "description": "Left and right clock that determines the channel on DATA; its frequency must equal the audio sampling rate, and it is an input in slave mode or a device-generated output in master mode."
      },
      {
        "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: The 4.2x4.2 mm body size from the package hint does not appear in the supplied text. The package is ; Pin numbers are taken from the PCM1770RGA terminal table (page 7), which is the variant matching thi; The datasheet gives no ERC class for the supply pins. VCC and VHP were typed power_in and VCOM as pa",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0666,
        "at": "2026-10-07T22:01:12"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/pcm1770",
        "pages": 40,
        "sha256": "8389d91d0d41551d",
        "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": [
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        "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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pcm1770rga-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
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        "sha256": "bd23c69805653c34cda9125b6b38ded56d279706d39dc6e0cdaefac3753b1489",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}