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Ray Set visibility: public 4499e56 11d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "pt4308",
  "title": "PT4308",
  "brief": "PTC Princeton Tech RF Transceiver ICs, SOP-8. 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",
    "rf and wireless",
    "pt4308",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "PT4308",
    "manufacturer": "PTC Princeton Tech",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "RF And Wireless",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884852427276288",
    "parts": {
      "symbol": "pt4308.kicad_sym",
      "footprint": "pt4308.kicad_mod",
      "model_3d": "pt4308-hero.glb",
      "model_3d_plain": "pt4308-etched.glb",
      "model_3d_step": "pt4308-etched.step",
      "model_3d_step_plain": "pt4308.step",
      "lbr": "pt4308.lbr"
    },
    "distributor_links": {
      "lcsc": "C481966"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T03:16:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for the device; the datasheet asks that the larger ground plane be placed as close as possible to all VSS pins."
      },
      {
        "number": "2",
        "name": "ANT",
        "type": "input",
        "description": "RF input connected to the antenna through an L-type matching network (L1/C1) to present 50 Ohm; ESD protection is rated at better than 4 kV HBM, 400 V MM and 1 kV CDM."
      },
      {
        "number": "3",
        "name": "VREG",
        "type": "power_out",
        "description": "Regulated core voltage output from the on-chip regulator, which requires a bypass capacitor C2 placed as close as possible to the pin."
      },
      {
        "number": "4",
        "name": "VDD5",
        "type": "power_in",
        "description": "5 V regulator input that accepts a supply range of 2.1 V to 5.5 V (5.0 V nominal) and should incorporate series-R, shunt-C filtering; absolute maximum is -0.3 V to 6 V."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Chip enable: tie HIGH for normal operation (VIH minimum 0.8 x VDD5) and LOW for standby (VIL maximum 0.2 x VDD5), where standby current is 1 µA maximum."
      },
      {
        "number": "6",
        "name": "DO",
        "type": "output",
        "description": "Data output with VOH minimum 0.9 x VDD5 at -1 µA and VOL maximum 0.1 x VDD5 at +1 µA, and a rise/fall time of about 2 µs at 15 pF load."
      },
      {
        "number": "7",
        "name": "CTH",
        "type": "bidirectional",
        "description": "Connection for the data slicing threshold capacitor CTH, which works with the on-chip 32.5 kΩ RTH to set the slicing level time constant; a squelch resistor may also be connected here."
      },
      {
        "number": "8",
        "name": "XIN",
        "type": "input",
        "description": "Reference oscillator input for the 13.598 MHz crystal (CLoad 220 pF in the reference design), requiring a minimum oscillation swing of 300 mVpP."
      }
    ],
    "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 PIN CONFIGURATION drawing on page 3 is garbled in the extracted text. The pinout was taken from ; The datasheet labels CTH as I/O, mapped here to bidirectional. XIN is labeled I in the datasheet and",
          "1/8 pins cited to the wrong page (name found elsewhere): ['8:XIN@p5']"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0596,
        "at": "2026-10-18T03:14:17"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884852427276288",
        "pages": 15,
        "sha256": "f3ac3a7eb2a87770",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "PTC Princeton Tech",
      "Package": "SOP-8",
      "Category": "RF And Wireless",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f3ac3a7eb2a87770a8f13f62115a9cdf94f865e20d95556dd06ae12a67f93b6b",
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          "kind": "electrical",
          "unit": "V",
          "min": 2.1,
          "typ": 5,
          "max": 5.5,
          "conditions": "Supply voltage applied to VDD5 pin only",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Standby Current",
          "symbol": "ISTBY",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "CE = LOW",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Operating Frequency Range",
          "symbol": "fRF",
          "kind": "electrical",
          "unit": "MHz",
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          "typ": 433.92,
          "max": 480,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Maximum Receiver Input Level",
          "symbol": "PRF,MAX",
          "kind": "electrical",
          "unit": "dBm",
          "min": -20,
          "typ": -15,
          "max": null,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Data Rate",
          "symbol": "DRATE",
          "kind": "electrical",
          "unit": "Kb/s",
          "min": null,
          "typ": 2,
          "max": 10,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "System Start-Up Time",
          "symbol": "TSTUP",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 2,
          "max": 3,
          "conditions": "With fast start-up circuit",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "LO Leakage",
          "symbol": "LLO",
          "kind": "electrical",
          "unit": "dBm",
          "min": null,
          "typ": null,
          "max": -80,
          "conditions": "Measured at antenna input",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Receive Modulation Duty Cycle",
          "symbol": "DUTY",
          "kind": "electrical",
          "unit": "%",
          "min": 20,
          "typ": null,
          "max": 80,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "CTH Leakage Current",
          "symbol": "IZCTH",
          "kind": "electrical",
          "unit": "nA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "TA = +85 °C",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "VCO Frequency Range",
          "symbol": "fVCO",
          "kind": "electrical",
          "unit": "MHz",
          "min": 370,
          "typ": null,
          "max": 500,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Reference Signal Voltage Swing",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 0.3,
          "typ": null,
          "max": 2,
          "conditions": "Peak-to-peak voltage (VPP)",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage Range",
          "symbol": "VDD5",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Analog I/O Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3,
          "conditions": "",
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        },
        {
          "name": "Digital I/O Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "ESD Rating (HBM)",
          "symbol": "VESD (HBM)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -4000,
          "typ": null,
          "max": 4000,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "ESD Rating (MM)",
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          "kind": "absolute_maximum",
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          "min": -400,
          "typ": null,
          "max": 400,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "ESD Rating (CDM)",
          "symbol": "VESD (CDM)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -1000,
          "typ": null,
          "max": 1000,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "From Chip Conjunction Dissipation to Package Surface",
          "symbol": "Rjc",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 1,
          "max": 1.8,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Current Consumption",
          "symbol": "IDD5",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4.3,
          "max": null,
          "conditions": "",
          "source_page": 12,
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        },
        {
          "name": "Sensitivity (ASK)",
          "symbol": "SIN",
          "kind": "electrical",
          "unit": "dBm",
          "min": null,
          "typ": -114,
          "max": null,
          "conditions": "ASK2, DRATE = 2 Kb/s, Peak power level",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Sensitivity (OOK)",
          "symbol": "SIN",
          "kind": "electrical",
          "unit": "dBm",
          "min": null,
          "typ": -108,
          "max": null,
          "conditions": "OOK, DRATE = 2 Kb/s, Peak power level",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Image Rejection Ratio",
          "symbol": "IRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 25,
          "max": null,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "IF Center Frequency",
          "symbol": "fIF",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 1.236,
          "max": null,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "IF Bandwidth",
          "symbol": "BWIF",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 380,
          "max": null,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "RSSI Slope",
          "symbol": "SLRSSI",
          "kind": "electrical",
          "unit": "mV/dB",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Post-Demodulator Filter Bandwidth",
          "symbol": "BWDF",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Reference Frequency",
          "symbol": "fREFOSC",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 13.598,
          "max": null,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Divider Ratio",
          "symbol": "DIV",
          "kind": "electrical",
          "unit": "",
          "min": null,
          "typ": 32,
          "max": null,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Output Current (source)",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 480,
          "max": null,
          "conditions": "Source current at 0.8 × VDD5",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Output Current (sink)",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 600,
          "max": null,
          "conditions": "Sink current at 0.2 × VDD5",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Output Rise/Fall Times",
          "symbol": "tR/tF",
          "kind": "electrical",
          "unit": "μs",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "DO pin, CLOAD = 15 pF",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "From Chip Conjunction Dissipation to External Environment",
          "symbol": "Rja",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 37.15,
          "max": null,
          "conditions": "TA = 27 °C",
          "source_page": 11,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "PT4308 (PTC Princeton Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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