PT4302-X

{
  "slug": "pt4302-x",
  "version": "0.1.0",
  "type": "component",
  "description": "PTC Princeton Tech RF Transceiver ICs, SSOP-16-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "rf and wireless",
    "pt4302-x",
    "factory-2.0.0",
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    "pt4302-x.step",
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  "component": {
    "mpn": "PT4302-X",
    "manufacturer": "PTC Princeton Tech",
    "package": "SSOP-16-150mil",
    "pin_count": 16,
    "category": "RF And Wireless",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881780493860864",
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      "lbr": "pt4302-x.lbr"
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    "distributor_links": {
      "lcsc": "C126424"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T03:16:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VSSLO",
        "type": "power_in",
        "description": "Ground pin for the local oscillator circuit (本振电路接地端)."
      },
      {
        "number": "2",
        "name": "VSSRF",
        "type": "power_in",
        "description": "Ground pin for the RF circuit (射频电路接地端)."
      },
      {
        "number": "3",
        "name": "ANT",
        "type": "input",
        "description": "Antenna input; the L-type match network brings it near 50 Ω, and the datasheet recommends a series inductor/capacitor match with an optional ESD-protection inductor."
      },
      {
        "number": "4",
        "name": "VRF",
        "type": "power_in",
        "description": "RF regulated supply pin (射频稳压电源); the internal regulator powers the whole chip, so this pin must be tied to the other supply pins and bypassed."
      },
      {
        "number": "5",
        "name": "MIXOUT",
        "type": "output",
        "description": "Mixer output (混频器输出端) with a specified output impedance of 300-360 Ω."
      },
      {
        "number": "6",
        "name": "VBB",
        "type": "power_in",
        "description": "Baseband regulated supply pin (基频稳压电源); tie to the other supply pins and add proper bypass capacitance."
      },
      {
        "number": "7",
        "name": "IFIN",
        "type": "input",
        "description": "IF amplifier input (中频放大器输入端) with a specified input impedance of 300-360 Ω, designed to interface with the external 10.7 MHz ceramic filter."
      },
      {
        "number": "8",
        "name": "VDD5",
        "type": "power_in",
        "description": "5 V input supply pin (5 V 输入电源); the only supply pin that connects externally, with a 2.4 V to 5.5 V operating range and an absolute maximum of -0.3 V to 6 V."
      },
      {
        "number": "9",
        "name": "VSSBB",
        "type": "power_in",
        "description": "Ground pin for the baseband circuit (基频电路接地端)."
      },
      {
        "number": "10",
        "name": "SELB",
        "type": "input",
        "description": "Data filter bandwidth select pin B (数据滤波器频宽选择 Pin B), which together with SELA sets the demodulator bandwidth; logic high/low thresholds are 0.8 VDD5 minimum and 0.2 VDD5 maximum."
      },
      {
        "number": "11",
        "name": "SELA",
        "type": "input",
        "description": "Data filter bandwidth select pin A (数据滤波器频宽选择 Pin A), which together with SELB sets the demodulator bandwidth; logic high/low thresholds are 0.8 VDD5 minimum and 0.2 VDD5 maximum."
      },
      {
        "number": "12",
        "name": "CE",
        "type": "input",
        "description": "Power enable pin (电源作动开关); high turns the chip on and low (0 V) turns it off, with off-state leakage below 1 μA."
      },
      {
        "number": "13",
        "name": "DO",
        "type": "output",
        "description": "Data demodulator output (数据解调输出); push-pull output with a typical rise/fall time of 10 μs at 15 pF load."
      },
      {
        "number": "14",
        "name": "CTH",
        "type": "bidirectional",
        "description": "Data demodulator threshold capacitor pin (数据解调器准位电容); an external capacitor (typically ±20% X7R) sets the threshold time constant together with the internal ~25 kΩ RTH."
      },
      {
        "number": "15",
        "name": "VLO",
        "type": "power_in",
        "description": "Local oscillator circuit supply pin (本振电路电源); tie to the other supply pins and add bypass capacitance, and it is also the pin the datasheet uses as the internal supply for the CTH noise-suppression resistor example."
      },
      {
        "number": "16",
        "name": "REFOSC",
        "type": "input",
        "description": "Reference oscillator pin (晶振输入) for a series-resonant crystal to ground or an external AC-coupled signal, with 300 mVpp minimum crystal amplitude or 0.3 to 1.5 Vpp external drive."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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: Datasheet is in Chinese; pin names, numbers and types were taken from the pin table on page 3 and th; Pin types follow KiCad classes: ground and supply pins (VSSLO, VSSRF, VSSBB, VRF, VBB, VDD5, VLO) ar"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0609,
        "at": "2026-10-18T03:14:47"
      },
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        "pages": 14,
        "sha256": "23fc7b3f7f6689a6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
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}