SI3019-F-FT

{
  "schema_version": 1,
  "type": "component",
  "slug": "si3019-f-ft",
  "title": "SI3019-F-FT",
  "brief": "SILICON LABS Telecommunication Interface ICs, TSSOP-16. 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 ics",
    "si3019-f-ft",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SI3019-F-FT",
    "manufacturer": "SILICON LABS",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Interface ICs",
    "subcategory": "Telecommunication Interface ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a8ae2faf1e30d37992b9e782d864fd8a.pdf",
    "parts": {
      "symbol": "si3019-f-ft.kicad_sym",
      "footprint": "si3019-f-ft.kicad_mod",
      "model_3d": "si3019-f-ft-hero.glb",
      "model_3d_plain": "si3019-f-ft-etched.glb",
      "model_3d_step": "si3019-f-ft-etched.step",
      "model_3d_step_plain": "si3019-f-ft.step",
      "lbr": "si3019-f-ft.lbr"
    },
    "distributor_links": {
      "lcsc": "C1549101",
      "digikey": "SI3019-F-FT-ND",
      "mouser": "634-SI3019-F-FT"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T23:07:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "SI3019-F-FT-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "634-SI3019-F-FT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "QE",
        "type": "passive",
        "description": "Transistor emitter that connects to the emitter of Q3."
      },
      {
        "number": "2",
        "name": "DCT",
        "type": "passive",
        "description": "DC termination that provides dc termination to the telephone network."
      },
      {
        "number": "3",
        "name": "RX",
        "type": "input",
        "description": "Receive input that serves as the receive-side input from the telephone network."
      },
      {
        "number": "4",
        "name": "IB",
        "type": "passive",
        "description": "Internal bias that provides a bias voltage to the device."
      },
      {
        "number": "5",
        "name": "C1B",
        "type": "passive",
        "description": "Isolation capacitor 1B that connects to one side of isolation capacitor C1 and is used to communicate with the system-side device."
      },
      {
        "number": "6",
        "name": "C2B",
        "type": "passive",
        "description": "Isolation capacitor 2B that connects to one side of isolation capacitor C2 and is used to communicate with the system-side device."
      },
      {
        "number": "7",
        "name": "VREG",
        "type": "passive",
        "description": "Voltage regulator that connects to an external capacitor to provide bypassing for an internal power supply."
      },
      {
        "number": "8",
        "name": "RNG1",
        "type": "passive",
        "description": "Ring 1 that connects through a resistor to the TIP lead of the telephone line and provides the ring and caller ID signals to the DAA."
      },
      {
        "number": "9",
        "name": "RNG2",
        "type": "passive",
        "description": "Ring 2 that connects through a resistor to the RING lead of the telephone line and provides the ring and caller ID signals to the DAA."
      },
      {
        "number": "10",
        "name": "VREG2",
        "type": "passive",
        "description": "Voltage regulator 2 that connects to an external capacitor to provide bypassing for an internal power supply."
      },
      {
        "number": "11",
        "name": "SC",
        "type": "passive",
        "description": "SC connection that enables the external transistor network and should be tied through a 0 resistor to IGND."
      },
      {
        "number": "12",
        "name": "QE2",
        "type": "passive",
        "description": "Transistor emitter 2 that connects to the emitter of Q4."
      },
      {
        "number": "13",
        "name": "QB",
        "type": "passive",
        "description": "Transistor base that connects to the base of transistor Q4."
      },
      {
        "number": "14",
        "name": "DCT3",
        "type": "passive",
        "description": "DC termination 3 that provides dc termination to the telephone network."
      },
      {
        "number": "15",
        "name": "IGND",
        "type": "power_in",
        "description": "Isolated ground that connects to ground on the line-side interface."
      },
      {
        "number": "16",
        "name": "DCT2",
        "type": "passive",
        "description": "DC termination 2 that provides dc termination to the telephone network."
      }
    ],
    "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: Table 27 maps QFN pin 8 to IGND with no TSSOP pin number, and the TSSOP-16 column is otherwise fully; Figure 53 (SOIC/TSSOP) text layout shows '2 IGND' next to pin 2, but Table 27 assigns TSSOP pin 2 to; Pin types are not stated in the datasheet; they were assigned from KiCad ERC classes based on the fu"
        ],
        "pages_sent": 20,
        "cost_usd": 0.095,
        "at": "2026-10-30T23:07:46"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/a8ae2faf1e30d37992b9e782d864fd8a.pdf",
        "pages": 128,
        "sha256": "c48c98a604cb0cd7",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "si3019-f-ft.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "si3019-f-ft-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "04cd78117aec32951fd16ca73caf89c654568babb6f99cb1189da6cbc158ef49",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "TSSOP-16",
      "source_page": 119,
      "D": {
        "nom_mm": 5,
        "range_mm": [
          4.9,
          5.1
        ]
      },
      "E1": {
        "nom_mm": 4.4,
        "range_mm": [
          4.4,
          4.5
        ]
      },
      "E": {
        "nom_mm": 6.4,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 0.65,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.2,
        "range_mm": [
          null,
          1.2
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "si3019-f-ft.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "SILICON LABS",
      "Package": "TSSOP-16",
      "Category": "Interface ICs",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c48c98a604cb0cd769a2cfb2a5900e592d4744236e0caf9ada6fb1866f1055ea",
      "rows": [
        {
          "name": "Ambient Temperature (F-Grade)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": 25,
          "max": 70,
          "conditions": "F-Grade",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "DC Termination Voltage",
          "symbol": "VTR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "IL = 20 mA, ILIM = 0; DCV = 00, MINI = 11, DCR = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "DC Termination Voltage",
          "symbol": "VTR",
          "kind": "electrical",
          "unit": "V",
          "min": 9,
          "typ": null,
          "max": null,
          "conditions": "IL = 120 mA, ILIM = 0; DCV = 00, MINI = 11, DCR = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "DC Termination Voltage",
          "symbol": "VTR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7.5,
          "conditions": "IL = 20 mA, ILIM = 0; DCV = 11, MINI = 00, DCR = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "DC Termination Voltage",
          "symbol": "VTR",
          "kind": "electrical",
          "unit": "V",
          "min": 40,
          "typ": null,
          "max": null,
          "conditions": "IL = 60 mA, ILIM = 1; DCV = 11, MINI = 00, DCR = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "DC Termination Voltage",
          "symbol": "VTR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "IL = 50 mA, ILIM = 1; DCV = 11, MINI = 00, DCR = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "On-Hook Leakage Current",
          "symbol": "ILK",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VTR = –48 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating Loop Current",
          "symbol": "ILP",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": null,
          "max": 120,
          "conditions": "MINI = 00, ILIM = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating Loop Current",
          "symbol": "ILP",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": null,
          "max": 60,
          "conditions": "MINI = 00, ILIM = 1",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "DC Ring Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1.5,
          "max": 3,
          "conditions": "dc current flowing through ring detection circuitry",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ring Detect Voltage",
          "symbol": "VRD",
          "kind": "electrical",
          "unit": "Vrms",
          "min": 13.5,
          "typ": 15,
          "max": 16.5,
          "conditions": "RT2 = 0, RT = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ring Detect Voltage",
          "symbol": "VRD",
          "kind": "electrical",
          "unit": "Vrms",
          "min": 19.35,
          "typ": 21.5,
          "max": 23.65,
          "conditions": "RT2 = 0, RT = 1",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ring Detect Voltage",
          "symbol": "VRD",
          "kind": "electrical",
          "unit": "Vrms",
          "min": 40.5,
          "typ": 45,
          "max": 49.5,
          "conditions": "RT2 = 1, RT = 1",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ring Frequency",
          "symbol": "FR",
          "kind": "electrical",
          "unit": "Hz",
          "min": 13,
          "typ": null,
          "max": 68,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ringer Equivalence Number",
          "symbol": "REN",
          "kind": "electrical",
          "unit": "",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Sample Rate",
          "symbol": "Fs",
          "kind": "electrical",
          "unit": "kHz",
          "min": 8,
          "typ": null,
          "max": 16,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "PCLK Input Frequency",
          "symbol": "PCLK",
          "kind": "electrical",
          "unit": "kHz",
          "min": 256,
          "typ": null,
          "max": 8192,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Gain Accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "dB",
          "min": -0.5,
          "typ": 0,
          "max": 0.5,
          "conditions": "2-W to DTX, TXG2, RXG2, TXG3, and RXG3 = 0000",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Transhybrid Balance",
          "symbol": "",
          "kind": "electrical",
          "unit": "dB",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "300–3.4 kHz, ZACIM = ZLINE",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Two-Wire Return Loss",
          "symbol": "",
          "kind": "electrical",
          "unit": "dB",
          "min": 25,
          "typ": null,
          "max": null,
          "conditions": "300–3.4 kHz, all ac terminations",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "DC Supply Voltage",
          "symbol": "VD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input Current, Digital Input Pins (Si3050)",
          "symbol": "IIN",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Digital Input Voltage",
          "symbol": "VIND",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "printed as (VD + 0.3)",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Ambient Operating Temperature Range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction-to-Ambient (Si3011/18/19)",
          "symbol": "JA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 89,
          "max": null,
          "conditions": "TSSOP-16 package",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "si3019-f-ft"
  ],
  "discovery_pitch": "SI3019-F-FT (SILICON LABS) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "si3019-f-ft.kicad_sym",
    "si3019-f-ft.kicad_mod",
    "si3019-f-ft.glb",
    "si3019-f-ft.step",
    "si3019-f-ft.lbr",
    "docs/hero.png",
    "docs/si3019-f-ft-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "si3019-f-ft-hero.glb",
    "si3019-f-ft-hero.overlay.json",
    "si3019-f-ft-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}