DS8500-JND+T&R

{
  "schema_version": 1,
  "type": "component",
  "slug": "ds8500-jnd-t-r",
  "title": "DS8500-JND+T&R",
  "brief": "Analog Devices Interface - Specialized, QFN-20-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "ds8500-jnd+t&r",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "DS8500-JND+T&R",
    "manufacturer": "Analog Devices",
    "package": "QFN-20-EP(5x5)",
    "pin_count": 21,
    "category": "Interface",
    "subcategory": "Interface - Specialized",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893706107957248",
    "parts": {
      "symbol": "ds8500-jnd-t-r.kicad_sym",
      "footprint": "ds8500-jnd-t-r.kicad_mod",
      "model_3d": "ds8500-jnd-t-r-etched.glb",
      "model_3d_plain": "ds8500-jnd-t-r.glb",
      "model_3d_step": "ds8500-jnd-t-r-etched.step",
      "model_3d_step_plain": "ds8500-jnd-t-r.step",
      "lbr": "ds8500-jnd-t-r.lbr"
    },
    "distributor_links": {
      "lcsc": "C709721"
    },
    "pins": [
      {
        "number": "1",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital Supply Voltage, 2.7V to 3.6V operating range."
      },
      {
        "number": "2",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital Supply Voltage, 2.7V to 3.6V operating range."
      },
      {
        "number": "3",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital Ground."
      },
      {
        "number": "4",
        "name": "RST",
        "type": "bidirectional",
        "description": "Active-Low Reset digital input/output with internal pullup resistor, driven low when internal reset condition occurs."
      },
      {
        "number": "5",
        "name": "OCD",
        "type": "output",
        "description": "Carrier Detect digital output, logic-high when FSK_IN amplitude exceeds 120mVP-P, logic-low when below 80mVP-P."
      },
      {
        "number": "6",
        "name": "RTS",
        "type": "input",
        "description": "Request to Send digital input, high selects demodulator mode, low selects modulator mode."
      },
      {
        "number": "7",
        "name": "XTAL1",
        "type": "passive",
        "description": "Crystal Pin or External Clock Input at 3.6864MHz."
      },
      {
        "number": "8",
        "name": "XTAL2",
        "type": "passive",
        "description": "Crystal Pin or Crystal Amplifier Output."
      },
      {
        "number": "9",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital Ground."
      },
      {
        "number": "10",
        "name": "XCEN",
        "type": "input",
        "description": "External Clock Enable digital input, high allows external clock on XTAL1 with XTAL2 unconnected, low requires crystal between XTAL1 and XTAL2."
      },
      {
        "number": "11",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog Supply Voltage, 2.7V to 3.6V operating range."
      },
      {
        "number": "12",
        "name": "FSK_OUT",
        "type": "output",
        "description": "FSK Output, analog signal with phase-continuous FSK modulation at 1200Hz (mark) or 2200Hz (space) for 4-20mA loop."
      },
      {
        "number": "13",
        "name": "REF",
        "type": "output",
        "description": "Reference Output, 1.23V internal reference in demodulator mode, must connect 0.1µF capacitor to this pin."
      },
      {
        "number": "14",
        "name": "FSK_IN",
        "type": "input",
        "description": "FSK Input, analog FSK-modulated HART receive signal from 4-20mA current loop, input range 0V to VREF."
      },
      {
        "number": "15",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog Ground."
      },
      {
        "number": "16",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital Ground."
      },
      {
        "number": "17",
        "name": "MODE",
        "type": "input",
        "description": "Mode Select digital input, tie high for HART applications or low for legacy design support."
      },
      {
        "number": "18",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital Ground."
      },
      {
        "number": "19",
        "name": "D_OUT",
        "type": "output",
        "description": "Digital Data Output from demodulator at 1200 bits per second."
      },
      {
        "number": "20",
        "name": "D_IN",
        "type": "input",
        "description": "Digital Data Input to modulator in UART format (start, 8 data bits, parity, stop bit)."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 21 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.1764,
        "at": "2026-09-17T23:32:49"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893706107957248",
        "pages": 7,
        "sha256": "b4e09a4d496071c3",
        "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": "ds8500-jnd-t-r.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          5,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9466f19e7a94c1920e0c82ac10746517bca0b846bd3c01a7053914bd9856799f",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ds8500-jnd-t-r-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          5,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4d02a071038001f7bbc0f2b59fb4bea0882a192198fd4cdba805c43b69044f61",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "QFN-20-EP(5x5)",
      "Category": "Interface",
      "Pins": "21"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ds8500-jnd+t&r"
  ],
  "discovery_pitch": "DS8500-JND+T&R (Analog Devices) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ds8500-jnd-t-r.kicad_sym",
    "ds8500-jnd-t-r.kicad_mod",
    "ds8500-jnd-t-r.glb",
    "ds8500-jnd-t-r.step",
    "ds8500-jnd-t-r.lbr",
    "docs/hero.png",
    "docs/ds8500-jnd-t-r-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T20:07:13.587Z"
}