PCM1808

{
  "schema_version": 1,
  "type": "component",
  "slug": "pcm1808",
  "title": "PCM1808",
  "brief": "TI stereo audio ADC, TSSOP-14. 24-bit, 96 kHz, single-ended input, I2S output. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "data-converter",
    "adc",
    "audio",
    "i2s",
    "tssop-14",
    "texas-instruments"
  ],
  "component": {
    "mpn": "PCM1808",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "Data Converter",
    "subcategory": "Stereo audio ADC (I2S)",
    "datasheet": "https://www.ti.com/lit/ds/symlink/pcm1808.pdf",
    "parts": {
      "symbol": "pcm1808.kicad_sym",
      "footprint": "pcm1808.kicad_mod",
      "model_3d": "pcm1808-etched.glb",
      "model_3d_plain": "pcm1808.glb",
      "lbr": "pcm1808.lbr",
      "model_3d_step": "pcm1808-etched.step",
      "model_3d_step_plain": "pcm1808.step"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VREF",
        "type": "passive",
        "description": "Reference-voltage decoupling pin at 0.5 x VCC (~2.5 V nominal with VCC = 5 V). Bypass to AGND with a decoupling capacitor; do not drive externally."
      },
      {
        "number": "2",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground return for the 5-V analog supply (VCC) and analog input circuitry. |AGND - DGND| must be <= 0.1 V."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Analog power supply, 5 V nominal (4.5 - 5.5 V recommended, 6.5 V absolute max). Typical ICC = 8.6 mA at fs = 48/96 kHz."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital power supply, 3.3 V nominal (2.7 - 3.6 V recommended, 4 V absolute max). Typical IDD = 5.9 mA at fs = 48 kHz, 10.2 mA at 96 kHz."
      },
      {
        "number": "5",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground return for the 3.3-V digital supply (VDD) and digital I/O. |AGND - DGND| must be <= 0.1 V."
      },
      {
        "number": "6",
        "name": "SCKI",
        "type": "input",
        "description": "System clock input; 256 fs, 384 fs, or 512 fs (2.048 - 49.152 MHz). Schmitt-trigger, 5-V tolerant. Halting SCKI (along with BCK/LRCK) invokes power-down and internal reset."
      },
      {
        "number": "7",
        "name": "LRCK",
        "type": "bidirectional",
        "description": "Audio-data left/right latch-enable (word-select / LRCLK). Input in slave mode, output in master mode. Schmitt-trigger input with 50-kohm typical internal pulldown (slave mode)."
      },
      {
        "number": "8",
        "name": "BCK",
        "type": "bidirectional",
        "description": "Audio-data serial bit clock (BCLK). Input in slave mode, output in master mode. Schmitt-trigger input with 50-kohm typical internal pulldown (slave mode)."
      },
      {
        "number": "9",
        "name": "DOUT",
        "type": "output",
        "description": "Audio-data serial digital output (SDATA), 24-bit MSB-first two's complement. Driven per FMT selection (I2S or left-justified)."
      },
      {
        "number": "10",
        "name": "MD0",
        "type": "input",
        "description": "Audio-interface mode select 0. Together with MD1 selects master/slave mode and BCK/LRCK ratios. Schmitt-trigger input with 50-kohm typical internal pulldown, 5-V tolerant."
      },
      {
        "number": "11",
        "name": "MD1",
        "type": "input",
        "description": "Audio-interface mode select 1. Together with MD0 selects master/slave mode and BCK/LRCK ratios. Schmitt-trigger input with 50-kohm typical internal pulldown, 5-V tolerant."
      },
      {
        "number": "12",
        "name": "FMT",
        "type": "input",
        "description": "Audio-interface data-format select: I2S vs 24-bit left-justified on DOUT. Schmitt-trigger input with 50-kohm typical internal pulldown, 5-V tolerant."
      },
      {
        "number": "13",
        "name": "VINL",
        "type": "input",
        "description": "Single-ended analog input, left channel. Full-scale input 3 Vp-p (0.6 x VCC) centered at VREF (0.5 x VCC ~ 2.5 V). Input impedance 60 kohm typical."
      },
      {
        "number": "14",
        "name": "VINR",
        "type": "input",
        "description": "Single-ended analog input, right channel. Full-scale input 3 Vp-p (0.6 x VCC) centered at VREF (0.5 x VCC ~ 2.5 V). Input impedance 60 kohm typical."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/pcm1808.pdf",
        "pages": 32,
        "sha256": "4ac1a7ec0c05ee97",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "pcm1808.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pcm1808-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "71f6fae4478a27ba3be30347b86dd6a98d3d2efc031263a1f0852d3be37c95dc",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Stereo audio ADC (I2S)",
      "Resolution": "24-bit",
      "Sample rate": "up to 96 kHz",
      "Input": "single-ended line-level (L/R)",
      "Architecture": "delta-sigma, 64x oversampling",
      "Output": "I2S (BCK/LRCK/DOUT)",
      "SNR": "99 dB",
      "Package": "TSSOP-14"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "pcm1808",
    "stereo audio adc",
    "i2s adc",
    "24-bit audio adc",
    "line in adc"
  ],
  "discovery_pitch": "PCM1808 stereo audio ADC (TSSOP-14) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "pcm1808.kicad_sym",
    "pcm1808.kicad_mod",
    "pcm1808.glb",
    "pcm1808.lbr",
    "docs/hero.png",
    "docs/pcm1808-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pcm1808-etched.step"
  ],
  "variants": [
    {
      "mpn": "PCM1808PWR (TSSOP-14)",
      "kind": "packaging"
    },
    {
      "mpn": "PCM1808PW (TSSOP-14, tube)",
      "kind": "packaging"
    }
  ]
}