AIC111RHB

{
  "slug": "aic111rhb",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Audio Interface ICs, VQFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "aic111rhb",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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  "component": {
    "mpn": "AIC111RHB",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-32(5x5)",
    "pin_count": 33,
    "category": "Interface",
    "subcategory": "Audio Interface ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/aic111",
    "parts": {
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      "lbr": "aic111rhb.lbr"
    },
    "distributor_links": {
      "lcsc": "C1521524",
      "digikey": "296-15335-ND",
      "mouser": "595-AIC111RHB"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T14:35:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-15335-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-AIC111RHB",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AVSS1",
        "type": "power_in",
        "description": "Ground return for ADC analog circuits."
      },
      {
        "number": "2",
        "name": "AVSS2",
        "type": "power_in",
        "description": "Ground return for PGAC and MIC power analog circuits."
      },
      {
        "number": "3",
        "name": "AVINP",
        "type": "input",
        "description": "Noninverting differential analog input, coupled through an external 1-µF capacitor to the external microphone output."
      },
      {
        "number": "4",
        "name": "AVINM",
        "type": "input",
        "description": "Inverting differential analog signal input, coupled through an external 1-µF capacitor to ground."
      },
      {
        "number": "5",
        "name": "VMID_FILT",
        "type": "output",
        "description": "Midsupply AC ground reference filter pin, bypassed by a 1-µF capacitor connected to ground."
      },
      {
        "number": "6",
        "name": "MIC_BIAS",
        "type": "output",
        "description": "Source connection of the external microphone source-follower preamp; provides 29.1 kΩ to AVSS2."
      },
      {
        "number": "7",
        "name": "VREF",
        "type": "power_in",
        "description": "Bandgap reference output, bypassed by an external 1-µF VREF filter capacitor."
      },
      {
        "number": "8",
        "name": "MIC_VSUP",
        "type": "output",
        "description": "Supply voltage for the external microphone source-follower preamp, bypassed with an external 0.1-µF capacitor."
      },
      {
        "number": "9",
        "name": "SUB_VSS",
        "type": "power_in",
        "description": "Isolated substrate VSS for analog circuits."
      },
      {
        "number": "10",
        "name": "VDD_OSC",
        "type": "power_in",
        "description": "Power pin for the internal oscillator."
      },
      {
        "number": "11",
        "name": "VSS_OSC",
        "type": "power_in",
        "description": "Ground return for the internal oscillator."
      },
      {
        "number": "12",
        "name": "HB_VSS_P",
        "type": "power_in",
        "description": "Ground return for the noninverting stack of the H-bridge amplifier."
      },
      {
        "number": "13",
        "name": "VOUT_P",
        "type": "output",
        "description": "Noninverting H-bridge output voltage."
      },
      {
        "number": "14",
        "name": "HB_VDD",
        "type": "power_in",
        "description": "Power pin for the H-bridge amplifier."
      },
      {
        "number": "15",
        "name": "VOUT_M",
        "type": "output",
        "description": "Inverting H-bridge output voltage."
      },
      {
        "number": "16",
        "name": "HB_VSS_M",
        "type": "power_in",
        "description": "Ground return for the inverting stack of the H-bridge amplifier."
      },
      {
        "number": "17",
        "name": "IMODE",
        "type": "input",
        "description": "Digital interface format selection pin."
      },
      {
        "number": "18",
        "name": "MCLK",
        "type": "output",
        "description": "5-MHz output clock for external DSP/µC."
      },
      {
        "number": "19",
        "name": "DVSS1",
        "type": "power_in",
        "description": "Ground return for digital circuits."
      },
      {
        "number": "20",
        "name": "DVDD",
        "type": "power_in",
        "description": "Power pin for digital circuits."
      },
      {
        "number": "21",
        "name": "BUF_DVDD",
        "type": "power_in",
        "description": "Power pin for interface digital I/O circuits."
      },
      {
        "number": "22",
        "name": "BUF_DVSS",
        "type": "power_in",
        "description": "Ground return for interface digital I/O circuits."
      },
      {
        "number": "23",
        "name": "SDOUT",
        "type": "output",
        "description": "Digital interface serial data output pin."
      },
      {
        "number": "24",
        "name": "SDIN",
        "type": "input",
        "description": "Digital interface serial data input pin."
      },
      {
        "number": "25",
        "name": "FRAME",
        "type": "output",
        "description": "Digital interface serial data framer."
      },
      {
        "number": "26",
        "name": "SCLK",
        "type": "output",
        "description": "Digital interface serial shift clock."
      },
      {
        "number": "27",
        "name": "DVSS2",
        "type": "power_in",
        "description": "Ground return for digital circuits."
      },
      {
        "number": "28",
        "name": "RST/LBM",
        "type": "output",
        "description": "Provides external reset and low battery monitor."
      },
      {
        "number": "29",
        "name": "EXT_RST/PWDN",
        "type": "input",
        "description": "Powers down all analog blocks and holds digital outputs low until the internal system is up."
      },
      {
        "number": "30",
        "name": "AVDD",
        "type": "power_in",
        "description": "VDD power pin for analog circuits."
      },
      {
        "number": "31",
        "name": "VRFILT",
        "type": "output",
        "description": "Positive ADC reference pin, bypassed with a 1-µF capacitor to AVSS_REF."
      },
      {
        "number": "32",
        "name": "AVSS_REF",
        "type": "power_in",
        "description": "Ground for ADC voltage reference."
      },
      {
        "number": "33",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Pin types were mapped to KiCad ERC classes from the datasheet's Type column: GND and VDD pins as pow; The datasheet's pin-out figure (Figure 2) is partly garbled in text extraction, so pin numbers were ; Pin 9 SUB_VSS, pins 19 and 27 (DVSS1/DVSS2), and pin 32 AVSS_REF are listed as separate pins in the ",
          "exposed pad 33 added from the footprint"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0741,
        "at": "2026-10-08T14:35:37"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/aic111",
        "pages": 34,
        "sha256": "5b460cf8a96d4d42",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}