CS4385-CQZR

{
  "slug": "cs4385-cqzr",
  "version": "0.1.0",
  "type": "component",
  "description": "Cirrus Logic Digital To Analog Converters (DACs), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "adc-dac-data conversion",
    "cs4385-cqzr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "cs4385-cqzr.kicad_sym",
    "cs4385-cqzr.kicad_mod",
    "cs4385-cqzr.glb",
    "cs4385-cqzr.step",
    "cs4385-cqzr.lbr",
    "docs/hero.png",
    "docs/cs4385-cqzr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cs4385-cqzr-hero.glb",
    "cs4385-cqzr-hero.overlay.json",
    "cs4385-cqzr-etched.glb"
  ],
  "component": {
    "mpn": "CS4385-CQZR",
    "manufacturer": "Cirrus Logic",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "ADC/DAC/Data Conversion",
    "subcategory": "Digital To Analog Converters (DACs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/773f5ab20cb1c450003c23bbc4e5c585.pdf",
    "parts": {
      "symbol": "cs4385-cqzr.kicad_sym",
      "footprint": "cs4385-cqzr.kicad_mod",
      "model_3d": "cs4385-cqzr-hero.glb",
      "model_3d_plain": "cs4385-cqzr-etched.glb",
      "model_3d_step": "cs4385-cqzr-etched.step",
      "model_3d_step_plain": "cs4385-cqzr.step",
      "lbr": "cs4385-cqzr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2667066",
      "digikey": "CS4385-CQZR-ND",
      "mouser": "777-CS4385-CQZR"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T21:06:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "CS4385-CQZR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "777-CS4385-CQZR",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DSDA2",
        "type": "input",
        "description": "Direct Stream Digital input for DSD serial audio data, channel A2."
      },
      {
        "number": "2",
        "name": "DSDB1",
        "type": "input",
        "description": "Direct Stream Digital input for DSD serial audio data, channel B1."
      },
      {
        "number": "3",
        "name": "DSDA1",
        "type": "input",
        "description": "Direct Stream Digital input for DSD serial audio data, channel A1."
      },
      {
        "number": "4",
        "name": "VD",
        "type": "power_in",
        "description": "Positive digital power supply, 2.37 V to 2.63 V (2.5 V typ) per Recommended Operating Conditions."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference, should be connected to analog ground."
      },
      {
        "number": "6",
        "name": "MCLK",
        "type": "input",
        "description": "Master clock input for the delta-sigma modulator and digital filters."
      },
      {
        "number": "7",
        "name": "LRCK",
        "type": "input",
        "description": "Left/right clock input that determines the active channel on the serial audio data line, at the audio sample rate Fs."
      },
      {
        "number": "8",
        "name": "SDIN1",
        "type": "input",
        "description": "Serial audio data input for two's complement serial audio data."
      },
      {
        "number": "9",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input for the serial audio interface."
      },
      {
        "number": "10",
        "name": "M4(TST)",
        "type": "input",
        "description": "Hardware Mode mode-selection input M4; in Software Mode it is a test pin that must be connected to ground and not left floating."
      },
      {
        "number": "11",
        "name": "SDIN2",
        "type": "input",
        "description": "Serial audio data input for two's complement serial audio data."
      },
      {
        "number": "12",
        "name": "M3(TST)",
        "type": "input",
        "description": "Hardware Mode mode-selection input M3; in Software Mode it is a test pin that must be connected to ground and not left floating."
      },
      {
        "number": "13",
        "name": "SDIN3",
        "type": "input",
        "description": "Serial audio data input for two's complement serial audio data."
      },
      {
        "number": "14",
        "name": "SDIN4",
        "type": "input",
        "description": "Serial audio data input for two's complement serial audio data."
      },
      {
        "number": "15",
        "name": "M2(SCL/CCLK)",
        "type": "input",
        "description": "Hardware Mode select M2; in Software Mode the serial control port clock, needing an external pull-up to the logic voltage in I2C mode."
      },
      {
        "number": "16",
        "name": "M1(SDA/CDIN)",
        "type": "bidirectional",
        "description": "Hardware Mode select M1; in Software Mode SDA is the I2C data I/O line needing an external pull-up, and CDIN is the SPI control data input."
      },
      {
        "number": "17",
        "name": "M0(AD0/CS)",
        "type": "input",
        "description": "Hardware Mode select M0; in Software Mode AD0 is the I2C chip address bit 0 and CS is the SPI chip select."
      },
      {
        "number": "18",
        "name": "VLC",
        "type": "power_in",
        "description": "Control port power supply setting the control port signal level, 1.71 V to 5.25 V per Recommended Operating Conditions."
      },
      {
        "number": "19",
        "name": "RST",
        "type": "input",
        "description": "Reset input; the device enters a low power mode and all internal registers reset to defaults when low."
      },
      {
        "number": "20",
        "name": "FILT+",
        "type": "output",
        "description": "Positive voltage reference for the internal sampling circuits, requiring capacitive decoupling to analog ground."
      },
      {
        "number": "21",
        "name": "VQ",
        "type": "output",
        "description": "Internal quiescent voltage filter connection, must be capacitively coupled to analog ground, and any current drawn alters device performance."
      },
      {
        "number": "22",
        "name": "MUTEC234",
        "type": "output",
        "description": "Mute control output that goes high during power-up initialization, reset, muting, power-down or incorrect MCLK to LRCK ratio, for external mute circuits."
      },
      {
        "number": "23",
        "name": "AOUTB4-",
        "type": "output",
        "description": "Differential analog output, negative side of channel B4."
      },
      {
        "number": "24",
        "name": "AOUTB4+",
        "type": "output",
        "description": "Differential analog output, positive side of channel B4."
      },
      {
        "number": "25",
        "name": "AOUTA4+",
        "type": "output",
        "description": "Differential analog output, positive side of channel A4."
      },
      {
        "number": "26",
        "name": "AOUTA4-",
        "type": "output",
        "description": "Differential analog output, negative side of channel A4."
      },
      {
        "number": "27",
        "name": "AOUTB3-",
        "type": "output",
        "description": "Differential analog output, negative side of channel B3."
      },
      {
        "number": "28",
        "name": "AOUTB3+",
        "type": "output",
        "description": "Differential analog output, positive side of channel B3."
      },
      {
        "number": "29",
        "name": "AOUTA3+",
        "type": "output",
        "description": "Differential analog output, positive side of channel A3."
      },
      {
        "number": "30",
        "name": "AOUTA3-",
        "type": "output",
        "description": "Differential analog output, negative side of channel A3."
      },
      {
        "number": "31",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference, should be connected to analog ground."
      },
      {
        "number": "32",
        "name": "VA",
        "type": "power_in",
        "description": "Positive analog power supply, 4.75 V to 5.25 V (5.0 V typ) per Recommended Operating Conditions."
      },
      {
        "number": "33",
        "name": "AOUTB2-",
        "type": "output",
        "description": "Differential analog output, negative side of channel B2."
      },
      {
        "number": "34",
        "name": "AOUTB2+",
        "type": "output",
        "description": "Differential analog output, positive side of channel B2."
      },
      {
        "number": "35",
        "name": "AOUTA2+",
        "type": "output",
        "description": "Differential analog output, positive side of channel A2."
      },
      {
        "number": "36",
        "name": "AOUTA2-",
        "type": "output",
        "description": "Differential analog output, negative side of channel A2."
      },
      {
        "number": "37",
        "name": "AOUTB1-",
        "type": "output",
        "description": "Differential analog output, negative side of channel B1."
      },
      {
        "number": "38",
        "name": "AOUTB1+",
        "type": "output",
        "description": "Differential analog output, positive side of channel B1."
      },
      {
        "number": "39",
        "name": "AOUTA1+",
        "type": "output",
        "description": "Differential analog output, positive side of channel A1."
      },
      {
        "number": "40",
        "name": "AOUTA1-",
        "type": "output",
        "description": "Differential analog output, negative side of channel A1."
      },
      {
        "number": "41",
        "name": "MUTEC1",
        "type": "output",
        "description": "Mute control output that goes high during power-up initialization, reset, muting, power-down or incorrect MCLK to LRCK ratio, for external mute circuits."
      },
      {
        "number": "42",
        "name": "DSD_SCLK",
        "type": "input",
        "description": "Serial clock input for the Direct Stream Digital audio interface."
      },
      {
        "number": "43",
        "name": "VLS",
        "type": "power_in",
        "description": "Serial audio interface power supply setting the serial port signal level, 1.71 V to 5.25 V per Recommended Operating Conditions."
      },
      {
        "number": "44",
        "name": "DSDB4",
        "type": "input",
        "description": "Direct Stream Digital input for DSD serial audio data, channel B4."
      },
      {
        "number": "45",
        "name": "DSDA4",
        "type": "input",
        "description": "Direct Stream Digital input for DSD serial audio data, channel A4."
      },
      {
        "number": "46",
        "name": "DSDB3",
        "type": "input",
        "description": "Direct Stream Digital input for DSD serial audio data, channel B3."
      },
      {
        "number": "47",
        "name": "DSDA3",
        "type": "input",
        "description": "Direct Stream Digital input for DSD serial audio data, channel A3."
      },
      {
        "number": "48",
        "name": "DSDB2",
        "type": "input",
        "description": "Direct Stream Digital input for DSD serial audio data, channel B2."
      }
    ],
    "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: Package and ordering check: CS4385-CQZR is the Tape & Reel commercial-grade (-40°C to +85°C) 48-pin ; The pin-number-to-name map for the pin diagram on page 6 is garbled in the extracted text. Pin numbe; Differential analog output pin pairs are only given as pair ranges in the text (AOUTA1 39,40; AOUTB1"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0919,
        "at": "2026-10-28T21:05:41"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/773f5ab20cb1c450003c23bbc4e5c585.pdf",
        "pages": 55,
        "sha256": "4ddd535a987d5608",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 48,
        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cs4385-cqzr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cs4385-cqzr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "77358cbef25a5a5d8a912de34771ba82cf177db3c31602fb14fec5b86406e37f",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "48L LQFP",
      "source_page": 53,
      "D": {
        "nom_mm": 9.0,
        "range_mm": [
          8.7,
          9.3
        ]
      },
      "E1": {
        "nom_mm": 7.0,
        "range_mm": [
          6.9,
          7.1
        ]
      },
      "E": {
        "nom_mm": 9.0,
        "range_mm": [
          8.7,
          9.3
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          0.4,
          0.6
        ]
      },
      "A": {
        "nom_mm": 1.4,
        "range_mm": [
          null,
          1.6
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "cs4385-cqzr.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}