BD3702FV-E2

{
  "schema_version": 1,
  "type": "component",
  "slug": "bd3702fv-e2",
  "title": "BD3702FV-E2",
  "brief": "ROHM Semicon Audio Interface ICs, SSOP-28-208mil. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "bd3702fv-e2"
  ],
  "component": {
    "mpn": "BD3702FV-E2",
    "manufacturer": "ROHM Semicon",
    "package": "SSOP-28-208mil",
    "pin_count": 28,
    "category": "Interface",
    "subcategory": "Audio Interface ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884666576855040",
    "parts": {
      "symbol": "bd3702fv-e2.kicad_sym",
      "footprint": "bd3702fv-e2.kicad_mod",
      "model_3d": "bd3702fv-e2-etched.glb",
      "model_3d_plain": "bd3702fv-e2.glb",
      "model_3d_step": "bd3702fv-e2-etched.step",
      "model_3d_step_plain": "bd3702fv-e2.step",
      "lbr": "bd3702fv-e2.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "A1",
        "type": "input",
        "description": "Selector 'A' single-ended audio input, channel 1 (left). Typical input impedance 100 kOhm; DC-blocking cap required. Selectable through the input selector matrix (see Table 1 modes)."
      },
      {
        "number": "2",
        "name": "A2",
        "type": "input",
        "description": "Selector 'A' single-ended audio input, channel 2 (right). Rin(A,B,C) typ 100 kOhm."
      },
      {
        "number": "3",
        "name": "B1",
        "type": "input",
        "description": "Selector 'B' single-ended audio input, channel 1. Rin(A,B,C) typ 100 kOhm."
      },
      {
        "number": "4",
        "name": "B2",
        "type": "input",
        "description": "Selector 'B' single-ended audio input, channel 2. Rin(A,B,C) typ 100 kOhm."
      },
      {
        "number": "5",
        "name": "C1",
        "type": "input",
        "description": "Selector 'C' single-ended audio input, channel 1. Rin(A,B,C) typ 100 kOhm."
      },
      {
        "number": "6",
        "name": "C2",
        "type": "input",
        "description": "Selector 'C' single-ended audio input, channel 2. Rin(A,B,C) typ 100 kOhm."
      },
      {
        "number": "7",
        "name": "DP1",
        "type": "input",
        "description": "Selector 'D' differential positive input, channel 1. Ground-isolation amplifier front-end for external stereo input (Rin(D,E) typ 250 kOhm)."
      },
      {
        "number": "8",
        "name": "DN",
        "type": "input",
        "description": "Selector 'D' differential negative input (shared between D1 and D2 channels). Ground-reference / return for the D-selector isolation-amp inputs."
      },
      {
        "number": "9",
        "name": "DP2",
        "type": "input",
        "description": "Selector 'D' differential positive input, channel 2. Rin(D,E) typ 250 kOhm."
      },
      {
        "number": "10",
        "name": "EP1",
        "type": "input",
        "description": "Selector 'E' fully-differential positive input, channel 1. Rin(D,E) typ 250 kOhm."
      },
      {
        "number": "11",
        "name": "EN1",
        "type": "input",
        "description": "Selector 'E' fully-differential negative input, channel 1. Rin(D,E) typ 250 kOhm."
      },
      {
        "number": "12",
        "name": "EN2",
        "type": "input",
        "description": "Selector 'E' fully-differential negative input, channel 2. Rin(D,E) typ 250 kOhm."
      },
      {
        "number": "13",
        "name": "EP2",
        "type": "input",
        "description": "Selector 'E' fully-differential positive input, channel 2. Rin(D,E) typ 250 kOhm."
      },
      {
        "number": "14",
        "name": "MIN",
        "type": "input",
        "description": "Monaural mixing input. Sums into the signal path with +7 dB to -79 dB (1 dB step) attenuation, or -infinity via I2C control. Input impedance typ 27 kOhm; max input 2.2 Vrms at THD+N=1%."
      },
      {
        "number": "15",
        "name": "MUTE",
        "type": "input",
        "description": "External compulsory hardware mute input. Forces all outputs muted independent of I2C state (approx. -105 dB typ mute attenuation)."
      },
      {
        "number": "16",
        "name": "LRST",
        "type": "input",
        "description": "Level-meter reset input. Clears the peak-hold state of the internal I2C-readable level meter."
      },
      {
        "number": "17",
        "name": "LOUT",
        "type": "output",
        "description": "Level-meter DC output. DC voltage proportional to input level (Vmax typ 3.1 V, offset typ 0 mV) for driving an external analog meter."
      },
      {
        "number": "18",
        "name": "OUTS2",
        "type": "output",
        "description": "Subwoofer output, channel 2. Rout typ 50 Ohm; Vom typ 2.2 Vrms at THD+N=1%. Fed from the LPF (fc 55/85/120 Hz) with 0/180 deg phase select."
      },
      {
        "number": "19",
        "name": "OUTS1",
        "type": "output",
        "description": "Subwoofer output, channel 1. Rout typ 50 Ohm; Vom typ 2.2 Vrms at THD+N=1%."
      },
      {
        "number": "20",
        "name": "OUTR2",
        "type": "output",
        "description": "Rear stereo output, channel 2. Post fader/EQ/loudness path; Rout typ 50 Ohm."
      },
      {
        "number": "21",
        "name": "OUTR1",
        "type": "output",
        "description": "Rear stereo output, channel 1. Post fader/EQ/loudness path; Rout typ 50 Ohm."
      },
      {
        "number": "22",
        "name": "OUTF2",
        "type": "output",
        "description": "Front stereo output, channel 2. Post fader/EQ/loudness path; Rout typ 50 Ohm."
      },
      {
        "number": "23",
        "name": "OUTF1",
        "type": "output",
        "description": "Front stereo output, channel 1. Post fader/EQ/loudness path; Rout typ 50 Ohm."
      },
      {
        "number": "24",
        "name": "VCC",
        "type": "power_in",
        "description": "Analog power supply. Operating range 7.0-9.5 V (abs max 10.0 V). Iq typ 48 mA (no signal). Bypass to GND with a short-return decoupling capacitor."
      },
      {
        "number": "25",
        "name": "SCL",
        "type": "input",
        "description": "I2C bus serial clock input. Compatible with 3.3 V or 5 V I2C logic levels. Requires external pull-up."
      },
      {
        "number": "26",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C bus serial data line. Compatible with 3.3 V or 5 V I2C logic. Open-drain; requires external pull-up."
      },
      {
        "number": "27",
        "name": "GND",
        "type": "power_in",
        "description": "Analog / signal ground. Single-point connect all grounds here; keep decoupling loop short."
      },
      {
        "number": "28",
        "name": "FIL",
        "type": "passive",
        "description": "VCC/2 mid-supply reference / filter pin. Connect an external bypass capacitor to GND to filter the internal VCC/2 bias used by the audio signal path."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884666576855040",
        "pages": 36,
        "sha256": "0e02483cd0911e8c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          10.2,
          2.1
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
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        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bd3702fv-e2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
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        "sha256": "55d8ce7e8083fa1c555dc6d06bcac0e5e8479bbb9ef598381889acf35a6a229c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ROHM Semicon",
      "Package": "SSOP-28-208mil",
      "Category": "Interface",
      "Pins": "28"
    }
  },
  "variants": [
    {
      "mpn": "BD3702FV-E2",
      "kind": "packaging"
    }
  ],
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "BD3702FV-E2 (ROHM Semicon) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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  "files": [
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    "bd3702fv-e2.step",
    "bd3702fv-e2.lbr",
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    "docs/bd3702fv-e2-datasheet.pdf",
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  "visibility": {
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  "updated_at": "2026-09-24T17:41:30.928Z"
}