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Ray Set visibility: public bf5708b 8d ago
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{
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  "slug": "va2101csg9",
  "title": "VA2101CSG9",
  "brief": "VIVA(昱盛) Audio Amplifiers, WLCSP-9. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "VA2101CSG9",
    "manufacturer": "VIVA(昱盛)",
    "package": "WLCSP-9",
    "pin_count": 9,
    "category": "Amplifiers/Comparators",
    "subcategory": "Audio Amplifiers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602767272217747456",
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      "lbr": "va2101csg9.lbr"
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    "distributor_links": {
      "lcsc": "C19673790"
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    "distributor_check": {
      "checked_at": "2026-10-18T18:13:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
        "pn": null,
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    "pins": [
      {
        "number": "A1",
        "name": "INP",
        "type": "input",
        "description": "Positive audio signal input of the differential pair; the datasheet limits its input voltage to 0 to VDD."
      },
      {
        "number": "C1",
        "name": "INN",
        "type": "input",
        "description": "Negative audio signal input of the differential pair; the datasheet limits its input voltage to 0 to VDD."
      },
      {
        "number": "C2",
        "name": "SD_B",
        "type": "input",
        "description": "Active-low shutdown control; it should be held high during normal operation, and pulling it low or leaving it floating mutes the outputs and puts the amplifier in its low-current state."
      },
      {
        "number": "C3",
        "name": "OUTP",
        "type": "output",
        "description": "Positive BTL (bridge-tied load) output, which drives the speaker together with OUTN."
      },
      {
        "number": "A3",
        "name": "OUTN",
        "type": "output",
        "description": "Negative BTL (bridge-tied load) output, which drives the speaker together with OUTP."
      },
      {
        "number": "B1",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin; the supply range is 2.8 V to 5.5 V and this pin is one of two VDD balls that must be decoupled close to the package."
      },
      {
        "number": "B2",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin; the supply range is 2.8 V to 5.5 V and this pin is one of two VDD balls that must be decoupled close to the package."
      },
      {
        "number": "A2",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground pin for the amplifier output stage and supply return."
      },
      {
        "number": "B3",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground pin for the amplifier output stage and supply return."
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  "metadata": {
    "specs": {
      "Manufacturer": "VIVA(昱盛)",
      "Package": "WLCSP-9",
      "Category": "Amplifiers/Comparators",
      "Pins": "9"
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          "name": "Supply voltage (absolute)",
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          "min": -0.3,
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          "max": 6,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "RINN, RINP, LINN, LINP, SD_B; printed as 0 to VDD (max not numeric)",
          "source_page": 3,
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        {
          "name": "Operating free-air temperature range",
          "symbol": "TA",
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          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        {
          "name": "Operating junction temperature range",
          "symbol": "TJ",
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          "max": 150,
          "conditions": "Footnote (*2) applies as printed",
          "source_page": 3,
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        {
          "name": "Storage temperature range",
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          "unit": "oC",
          "min": -65,
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          "name": "Minimum load resistance",
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        {
          "name": "Electrostatic discharge, human body model",
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        {
          "name": "Electrostatic discharge, machine model",
          "symbol": "",
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          "typ": null,
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          "source_page": 3,
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        {
          "name": "Supply voltage (operating)",
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          "kind": "recommended_operating",
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          "min": 2.8,
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        {
          "name": "High level input voltage (SD_B)",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "SD_B; VDD=5V; printed max is VDD (not numeric)",
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        {
          "name": "Low level input voltage (SD_B)",
          "symbol": "VIL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "SD_B; VDD=5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "External input resistor",
          "symbol": "RI",
          "kind": "recommended_operating",
          "unit": "kΩ",
          "min": 15,
          "typ": null,
          "max": null,
          "conditions": "GAIN≤20V/V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PWM carrier frequency",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "kHz",
          "min": 220,
          "typ": null,
          "max": 300,
          "conditions": "VDD=5V",
          "source_page": 3,
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        {
          "name": "Common mode input voltage range",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.5,
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          "conditions": "VDD=2.8V~5.5V, CMRR≤-49dB; printed max is VDD-0.8 (not numeric)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output offset voltage (measured differentially)",
          "symbol": "|VOS|",
          "kind": "tolerance",
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          "min": null,
          "typ": 1,
          "max": 25,
          "conditions": "VI=0V, AV=20dB, RL=8Ω",
          "source_page": 4,
          "source": "datasheet"
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          "name": "High-level input current",
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          "name": "Low-level input current",
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          "conditions": "VDD=5.5V, VI=-0.3V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "DC supply rejection ratio",
          "symbol": "|PSRR|",
          "kind": "electrical",
          "unit": "dB",
          "min": 55,
          "typ": 75,
          "max": null,
          "conditions": "VDD=4.5V to 5.5V, Gain=20dB",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Common mode rejection ratio",
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          "min": 49,
          "typ": 68,
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          "conditions": "VDD = 2.8 to 5.5V, VIC = 0.5V to VDD-0.8V",
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          "name": "Quiescent current",
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          "name": "Quiescent current",
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          "conditions": "VDD=3.6V",
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          "name": "Quiescent current",
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          "name": "Supply current in shutdown mode",
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          "source_page": 4,
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        {
          "name": "Drain-source ON resistance, high side",
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          "min": null,
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          "conditions": "VDD=5V, IOUT=500mA",
          "source_page": 4,
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          "conditions": "VDD=5V, IOUT=500mA",
          "source_page": 4,
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          "name": "Amplifier gain (printed as 285k/RI, 300k/RI, 325k/RI)",
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          "unit": "kΩ/RI",
          "min": 285,
          "typ": 300,
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          "conditions": "VDD = 2.8 to 5.5V; gain in V/V equals printed value divided by RI",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Input impedance",
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          "kind": "electrical",
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          "min": 141,
          "typ": 150,
          "max": 159,
          "conditions": "",
          "source_page": 5,
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