SSP1922

{
  "schema_version": 1,
  "type": "component",
  "slug": "ssp1922",
  "title": "SSP1922",
  "brief": "Shanghai Siproin Microelectronics Position Sensor, QFN-32-EP(5x5). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "sensor",
    "ssp1922"
  ],
  "component": {
    "mpn": "SSP1922",
    "manufacturer": "Shanghai Siproin Microelectronics",
    "package": "QFN-32-EP(5x5)",
    "pin_count": 32,
    "category": "Sensor",
    "subcategory": "Position Sensor",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/46a644a6ea9bb9e114cd845f968450df.pdf",
    "parts": {
      "symbol": "ssp1922.kicad_sym",
      "footprint": "ssp1922.kicad_mod",
      "model_3d": "ssp1922-etched.glb",
      "model_3d_plain": "ssp1922.glb",
      "model_3d_step": "ssp1922-etched.step",
      "model_3d_step_plain": "ssp1922.step",
      "lbr": "ssp1922.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "XIN",
        "type": "input",
        "description": "High-speed oscillator driver input (2-8 MHz ceramic/crystal). Tie to GND if unused."
      },
      {
        "number": "2",
        "name": "XOUT",
        "type": "output",
        "description": "High-speed oscillator driver output. Leave floating if unused."
      },
      {
        "number": "3",
        "name": "VIO",
        "type": "power_in",
        "description": "I/O supply voltage, 2.5 V to 3.6 V. Must equal Vcc for correct operation."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference. Connect to a solid ground plane."
      },
      {
        "number": "5",
        "name": "FIRE_UP",
        "type": "output",
        "description": "Fire pulse generator output 1 (upstream). Drives ultrasonic transducer with up to 48 mA, Rdson ~4 Ω."
      },
      {
        "number": "6",
        "name": "FIRE_DOWN",
        "type": "output",
        "description": "Fire pulse generator output 2 (downstream). Drives ultrasonic transducer with up to 48 mA, Rdson ~4 Ω."
      },
      {
        "number": "7",
        "name": "FIRE_IN",
        "type": "input",
        "description": "'Sing-around' signal input terminal for continuous ultrasonic measurement. Tie to GND if unused."
      },
      {
        "number": "8",
        "name": "INTN",
        "type": "output",
        "description": "Interrupt flag output, LOW active. 4 mA drive. Cleared by rising edge of the first SCK."
      },
      {
        "number": "9",
        "name": "SSN",
        "type": "input",
        "description": "SPI slave select input, LOW active. Required for 4-wire SPI operation."
      },
      {
        "number": "10",
        "name": "SCK",
        "type": "input",
        "description": "SPI serial clock input. Up to 20 MHz at Vio = 3.3 V (15 MHz at Vio = 2.5 V)."
      },
      {
        "number": "11",
        "name": "SI",
        "type": "input",
        "description": "SPI serial data input (MOSI). MSB-first byte transfers."
      },
      {
        "number": "12",
        "name": "SO",
        "type": "output",
        "description": "SPI serial data output (MISO). Drives low when SPI bus is free (non-tristate)."
      },
      {
        "number": "13",
        "name": "RSTN",
        "type": "input",
        "description": "Reset input, LOW active. After power-on reset wait ≥500 µs before starting the analog section."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Core supply voltage, 2.5 V to 3.6 V. Must equal Vio."
      },
      {
        "number": "15",
        "name": "CLK32OUT",
        "type": "output",
        "description": "32 kHz clock generator output. Leave n.c. if not used."
      },
      {
        "number": "16",
        "name": "CLK32IN",
        "type": "input",
        "description": "32 kHz clock generator input (crystal / external clock). Tie to GND if unused."
      },
      {
        "number": "17",
        "name": "SENSET",
        "type": "input",
        "description": "Sense input for temperature measurement (Schmitt trigger). Tie to GND if unused."
      },
      {
        "number": "18",
        "name": "LOADT",
        "type": "output",
        "description": "Load output for temperature measurement (24 mA drive). Leave n.c. if unused."
      },
      {
        "number": "19",
        "name": "PT4",
        "type": "output",
        "description": "Port 4 temperature measurement (RTD drive, >96 mA open drain)."
      },
      {
        "number": "20",
        "name": "PT3",
        "type": "output",
        "description": "Port 3 temperature measurement (RTD drive, >96 mA open drain)."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference. Connect to a solid ground plane."
      },
      {
        "number": "22",
        "name": "VIO",
        "type": "power_in",
        "description": "I/O supply voltage, 2.5 V to 3.6 V (second Vio pin, must equal Vcc)."
      },
      {
        "number": "23",
        "name": "PT2",
        "type": "output",
        "description": "Port 2 temperature measurement (RTD drive, >96 mA open drain)."
      },
      {
        "number": "24",
        "name": "PT1",
        "type": "output",
        "description": "Port 1 temperature measurement (RTD drive, >96 mA open drain)."
      },
      {
        "number": "25",
        "name": "EN_STOP2",
        "type": "input",
        "description": "Enable pin for STOP input 2, HIGH active. Tie to Vio if unused / always enabled."
      },
      {
        "number": "26",
        "name": "EN_STOP1",
        "type": "input",
        "description": "Enable pin for STOP input 1, HIGH active. Tie to Vio if unused / always enabled."
      },
      {
        "number": "27",
        "name": "STOP2",
        "type": "input",
        "description": "TDC stop input 2 (analog frontend via ~200 Ω switch). Tie to GND if unused."
      },
      {
        "number": "28",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference. Connect to a solid ground plane."
      },
      {
        "number": "29",
        "name": "VCC",
        "type": "power_in",
        "description": "Core supply voltage (second Vcc pin), 2.5 V to 3.6 V."
      },
      {
        "number": "30",
        "name": "STOP1",
        "type": "input",
        "description": "TDC stop input 1 (analog frontend via ~200 Ω switch). Tie to GND if unused."
      },
      {
        "number": "31",
        "name": "START",
        "type": "input",
        "description": "TDC start input. Tie to GND if unused."
      },
      {
        "number": "32",
        "name": "EN_START",
        "type": "input",
        "description": "Enable pin for START input, HIGH active. Tie to Vio if unused / always enabled."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/46a644a6ea9bb9e114cd845f968450df.pdf",
        "pages": 47,
        "sha256": "e322d1593761f7b8",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ssp1922.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ssp1922-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "75c44dcda5c1d9fb9ec0f232705c7904af542e94e3bb1d165d003f758b2e3dd6",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shanghai Siproin Microelectronics",
      "Package": "QFN-32-EP(5x5)",
      "Category": "Sensor",
      "Pins": "32"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ssp1922"
  ],
  "discovery_pitch": "SSP1922 (Shanghai Siproin Microelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ssp1922.kicad_sym",
    "ssp1922.kicad_mod",
    "ssp1922.glb",
    "ssp1922.step",
    "ssp1922-etched.step",
    "ssp1922.lbr",
    "docs/hero.png",
    "docs/ssp1922-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "SSP1922",
      "kind": "packaging"
    },
    {
      "mpn": "SSP1922P",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T08:10:35.796Z"
}