PT4302-X

{
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  "type": "component",
  "slug": "pt4302-x",
  "title": "PT4302-X",
  "brief": "PTC Princeton Tech RF Transceiver ICs, SSOP-16-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "rf and wireless",
    "pt4302-x",
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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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    "distributor_links": {
      "lcsc": "C126424"
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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    },
    "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",
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        "primary_model": "claude-haiku-5-5",
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        "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"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
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        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "PTC Princeton Tech",
      "Package": "SSOP-16-150mil",
      "Category": "RF And Wireless",
      "Pins": "16"
    },
    "characteristics": {
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          "name": "Input voltage (VDD5 only connected)",
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          "kind": "recommended_operating",
          "unit": "V",
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          "typ": 5,
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        {
          "name": "Input voltage VDD5 absolute maximum",
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        {
          "name": "Operating temperature range",
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          "unit": "°C",
          "min": -40,
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        {
          "name": "Storage temperature range",
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          "min": -55,
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        {
          "name": "Consumption current at fRF=315 MHz",
          "symbol": "IDD5",
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          "unit": "mA",
          "min": null,
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        {
          "name": "Consumption current at fRF=434 MHz",
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          "name": "Standby current",
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          "conditions": "CE=\"Low\"",
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          "name": "Frequency range",
          "symbol": "fRF",
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          "unit": "MHz",
          "min": 250,
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          "conditions": "",
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        },
        {
          "name": "Maximum input signal",
          "symbol": "PRF,MAX",
          "kind": "electrical",
          "unit": "dBm",
          "min": -20,
          "typ": -15,
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        {
          "name": "Receiver sensitivity (ASK)",
          "symbol": "SIN",
          "kind": "electrical",
          "unit": "dBm",
          "min": null,
          "typ": -112,
          "max": -109,
          "conditions": "ASK (AM 99% square wave), DRate=2 Kb/s, 315 MHz, BER=1e-3",
          "source_page": 10,
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        {
          "name": "Receiver sensitivity (OOK)",
          "symbol": "SIN",
          "kind": "electrical",
          "unit": "dBm",
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          "name": "Receiver sensitivity (ASK)",
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          "kind": "electrical",
          "unit": "dBm",
          "min": null,
          "typ": -111,
          "max": -108,
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          "source_page": 10,
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        {
          "name": "Receiver sensitivity (OOK)",
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          "kind": "electrical",
          "unit": "dBm",
          "min": null,
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          "conditions": "OOK, DRate=2 Kb/s, 434 MHz, BER=1e-3",
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        {
          "name": "Data rate",
          "symbol": "DRATE",
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          "unit": "Kb/s",
          "min": null,
          "typ": 2,
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        },
        {
          "name": "LO leakage measured at antenna",
          "symbol": "LLO",
          "kind": "electrical",
          "unit": "dBm",
          "min": null,
          "typ": null,
          "max": -80,
          "conditions": "Measured at antenna pin",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "System startup time",
          "symbol": "TSTUP",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 5,
          "max": 8,
          "conditions": "RF input power=-60 dBm",
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          "source": "datasheet"
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        {
          "name": "RF voltage gain at 315 MHz",
          "symbol": "GVRF",
          "kind": "electrical",
          "unit": "dB",
          "min": 40,
          "typ": 43,
          "max": 46,
          "conditions": "Matched to 50 Ω, 315 MHz",
          "source_page": 10,
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        {
          "name": "RF voltage gain at 434 MHz",
          "symbol": "GVRF",
          "kind": "electrical",
          "unit": "dB",
          "min": 39,
          "typ": 42,
          "max": 45,
          "conditions": "Matched to 50 Ω, 434 MHz",
          "source_page": 10,
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        {
          "name": "Noise figure at 315 MHz",
          "symbol": "NFRF",
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          "unit": "dB",
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          "typ": 5.7,
          "max": 6.3,
          "conditions": "Matched to 50 Ω, 315 MHz",
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        {
          "name": "Noise figure at 434 MHz",
          "symbol": "NFRF",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 6.1,
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          "conditions": "Matched to 50 Ω, 434 MHz",
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        },
        {
          "name": "Mixer output impedance",
          "symbol": "ZOUT,MIXER",
          "kind": "electrical",
          "unit": "Ω",
          "min": 300,
          "typ": 330,
          "max": 360,
          "conditions": "",
          "source_page": 10,
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        {
          "name": "IF frequency",
          "symbol": "fIF",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 10.7,
          "max": null,
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        },
        {
          "name": "IF bandwidth",
          "symbol": "BWIF",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 180,
          "max": null,
          "conditions": "Depends on external 10.7 MHz ceramic filter bandwidth",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "IF input impedance",
          "symbol": "ZIN,IF",
          "kind": "electrical",
          "unit": "Ω",
          "min": 300,
          "typ": 330,
          "max": 360,
          "conditions": "",
          "source_page": 10,
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        {
          "name": "RSSI slope",
          "symbol": "SLRSSI",
          "kind": "electrical",
          "unit": "mV/dB",
          "min": 9.5,
          "typ": 11.5,
          "max": 13.5,
          "conditions": "",
          "source_page": 10,
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        },
        {
          "name": "Demodulator bandwidth (SELA=SELB=High)",
          "symbol": "BWDF",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 0.9,
          "max": null,
          "conditions": "SELA = SELB = \"High\"",
          "source_page": 10,
          "source": "datasheet"
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        {
          "name": "Demodulator bandwidth (SELA=High, SELB=Low)",
          "symbol": "BWDF",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 1.8,
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          "conditions": "SELA = \"High\"; SELB = \"Low\"",
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          "name": "Demodulator bandwidth (SELA=Low, SELB=High)",
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          "unit": "KHz",
          "min": null,
          "typ": 3.6,
          "max": null,
          "conditions": "SELA = \"Low\"; SELB = \"High\"",
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        {
          "name": "Demodulator bandwidth (SELA=SELB=Low)",
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          "min": null,
          "typ": 7.2,
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          "conditions": "SELA = SELB = \"Low\"",
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        {
          "name": "CTH leakage current",
          "symbol": "IZCTH",
          "kind": "electrical",
          "unit": "nA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "TA = +85 °C",
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        {
          "name": "Reference frequency",
          "symbol": "fREFOSC",
          "kind": "electrical",
          "unit": "MHz",
          "min": 7,
          "typ": null,
          "max": 16,
          "conditions": "",
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        {
          "name": "Reference signal voltage amplitude",
          "symbol": "VREF",
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          "unit": "V",
          "min": 0.3,
          "typ": null,
          "max": 1.5,
          "conditions": "Peak-to-peak voltage (VPP)",
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        {
          "name": "VCO frequency range",
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          "kind": "electrical",
          "unit": "MHz",
          "min": 220,
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          "conditions": "",
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          "name": "Divider ratio",
          "symbol": "DIV",
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          "min": null,
          "typ": 32,
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          "name": "High-level input voltage",
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          "unit": "VDD5",
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          "conditions": "CE, SELA, SELB pins",
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          "name": "Low-level input voltage",
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          "kind": "electrical",
          "unit": "VDD5",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "CE, SELA, SELB pins",
          "source_page": 10,
          "source": "datasheet"
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        {
          "name": "Output current (push-pull)",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "DO pin, push-pull",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOUT,High",
          "kind": "electrical",
          "unit": "VDD5",
          "min": 0.9,
          "typ": null,
          "max": null,
          "conditions": "DO pin, IOUT = -1 μA",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOUT,Low",
          "kind": "electrical",
          "unit": "VDD5",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "DO pin, IOUT = +1 μA",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "DO output rise/fall time",
          "symbol": "tR/tF",
          "kind": "electrical",
          "unit": "μs",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "DO pin, CLOAD = 15 pF",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "Rja",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 37.15,
          "max": null,
          "conditions": "TA=27 °C; four-layer copper-clad test board, 1.15 W dissipation",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to package surface",
          "symbol": "Rjc",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 1,
          "max": 1.8,
          "conditions": "",
          "source_page": 9,
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