component
CS3318-CQZR
Public Made by Adomby adom
Cirrus Logic Audio Interface ICs, LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"type": "component",
"slug": "cs3318-cqzr",
"title": "CS3318-CQZR",
"brief": "Cirrus Logic Audio Interface ICs, LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"communication interface chip-uart-485-232",
"cs3318-cqzr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "CS3318-CQZR",
"manufacturer": "Cirrus Logic",
"package": "LQFP-48(7x7)",
"pin_count": 48,
"category": "Communication Interface Chip/UART/485/232",
"subcategory": "Audio Interface ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a3b1504faa9719462df7935d44c496ac.pdf",
"parts": {
"symbol": "cs3318-cqzr.kicad_sym",
"footprint": "cs3318-cqzr.kicad_mod",
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"model_3d_plain": "cs3318-cqzr-etched.glb",
"model_3d_step": "cs3318-cqzr-etched.step",
"model_3d_step_plain": "cs3318-cqzr.step",
"lbr": "cs3318-cqzr.lbr"
},
"distributor_links": {
"lcsc": "C2662540"
},
"distributor_check": {
"checked_at": "2026-10-22T22:06:16Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "IN1",
"type": "input",
"description": "Analog input for channel 1, with full-scale level given in the Analog Characteristics table."
},
{
"number": "2",
"name": "REFI1",
"type": "input",
"description": "Analog reference input for channel 1."
},
{
"number": "3",
"name": "RESET",
"type": "input",
"description": "Reset input; the device enters a low-power mode when this pin is driven low."
},
{
"number": "4",
"name": "MUTE",
"type": "input",
"description": "Mute input that defaults to active low and can be configured as active high."
},
{
"number": "5",
"name": "SCL/CCLK",
"type": "input",
"description": "Serial clock for the serial control port (I²C SCL / SPI CCLK)."
},
{
"number": "6",
"name": "SDA/MOSI",
"type": "bidirectional",
"description": "SDA is the data I/O line of the control port in I²C mode; MOSI is the control port input data line in SPI mode."
},
{
"number": "7",
"name": "AD0/CS",
"type": "input",
"description": "AD0 sets the LSB of the default chip address in I²C mode; CS is the control port chip-select in SPI mode."
},
{
"number": "8",
"name": "ENOut",
"type": "output",
"description": "Enable output signal for multi-device serial control chain configuration."
},
{
"number": "9",
"name": "DGND",
"type": "power_in",
"description": "Digital ground reference for the internal digital section."
},
{
"number": "10",
"name": "VD",
"type": "power_in",
"description": "Positive power for the internal digital section, 3.1 V to 3.5 V (3.3 V nominal)."
},
{
"number": "11",
"name": "REFI8",
"type": "input",
"description": "Analog reference input for channel 8."
},
{
"number": "12",
"name": "IN8",
"type": "input",
"description": "Analog input for channel 8, with full-scale level given in the Analog Characteristics table."
},
{
"number": "13",
"name": "REFO8",
"type": "output",
"description": "Analog reference output for channel 8."
},
{
"number": "14",
"name": "OUT8",
"type": "output",
"description": "Analog output for channel 8, with full-scale output level given in the Analog Characteristics table."
},
{
"number": "15",
"name": "VA+",
"type": "power_in",
"description": "Positive analog power for the internal analog section, 7.6 V to 9.45 V (9.0 V nominal)."
},
{
"number": "16",
"name": "VA-",
"type": "power_in",
"description": "Negative analog power for the internal analog section, -9.45 V to -7.6 V (-9.0 V nominal)."
},
{
"number": "17",
"name": "OUT7",
"type": "output",
"description": "Analog output for channel 7, with full-scale output level given in the Analog Characteristics table."
},
{
"number": "18",
"name": "REFO7",
"type": "output",
"description": "Analog reference output for channel 7."
},
{
"number": "19",
"name": "IN7",
"type": "input",
"description": "Analog input for channel 7, with full-scale level given in the Analog Characteristics table."
},
{
"number": "20",
"name": "REFI7",
"type": "input",
"description": "Analog reference input for channel 7."
},
{
"number": "21",
"name": "REFI6",
"type": "input",
"description": "Analog reference input for channel 6."
},
{
"number": "22",
"name": "IN6",
"type": "input",
"description": "Analog input for channel 6, with full-scale level given in the Analog Characteristics table."
},
{
"number": "23",
"name": "REFO6",
"type": "output",
"description": "Analog reference output for channel 6."
},
{
"number": "24",
"name": "OUT6",
"type": "output",
"description": "Analog output for channel 6, with full-scale output level given in the Analog Characteristics table."
},
{
"number": "25",
"name": "VA+",
"type": "power_in",
"description": "Positive analog power for the internal analog section, 7.6 V to 9.45 V (9.0 V nominal)."
},
{
"number": "26",
"name": "VA-",
"type": "power_in",
"description": "Negative analog power for the internal analog section, -9.45 V to -7.6 V (-9.0 V nominal)."
},
{
"number": "27",
"name": "OUT5",
"type": "output",
"description": "Analog output for channel 5, with full-scale output level given in the Analog Characteristics table."
},
{
"number": "28",
"name": "REFO5",
"type": "output",
"description": "Analog reference output for channel 5."
},
{
"number": "29",
"name": "IN5",
"type": "input",
"description": "Analog input for channel 5, with full-scale level given in the Analog Characteristics table."
},
{
"number": "30",
"name": "REFI5",
"type": "input",
"description": "Analog reference input for channel 5."
},
{
"number": "31",
"name": "REFI4",
"type": "input",
"description": "Analog reference input for channel 4."
},
{
"number": "32",
"name": "IN4",
"type": "input",
"description": "Analog input for channel 4, with full-scale level given in the Analog Characteristics table."
},
{
"number": "33",
"name": "REFO4",
"type": "output",
"description": "Analog reference output for channel 4."
},
{
"number": "34",
"name": "OUT4",
"type": "output",
"description": "Analog output for channel 4, with full-scale output level given in the Analog Characteristics table."
},
{
"number": "35",
"name": "VA+",
"type": "power_in",
"description": "Positive analog power for the internal analog section, 7.6 V to 9.45 V (9.0 V nominal)."
},
{
"number": "36",
"name": "VA-",
"type": "power_in",
"description": "Negative analog power for the internal analog section, -9.45 V to -7.6 V (-9.0 V nominal)."
},
{
"number": "37",
"name": "OUT3",
"type": "output",
"description": "Analog output for channel 3, with full-scale output level given in the Analog Characteristics table."
},
{
"number": "38",
"name": "REFO3",
"type": "output",
"description": "Analog reference output for channel 3."
},
{
"number": "39",
"name": "IN3",
"type": "input",
"description": "Analog input for channel 3, with full-scale level given in the Analog Characteristics table."
},
{
"number": "40",
"name": "REFI3",
"type": "input",
"description": "Analog reference input for channel 3."
},
{
"number": "41",
"name": "REFI2",
"type": "input",
"description": "Analog reference input for channel 2."
},
{
"number": "42",
"name": "IN2",
"type": "input",
"description": "Analog input for channel 2, with full-scale level given in the Analog Characteristics table."
},
{
"number": "43",
"name": "REFO2",
"type": "output",
"description": "Analog reference output for channel 2."
},
{
"number": "44",
"name": "OUT2",
"type": "output",
"description": "Analog output for channel 2, with full-scale output level given in the Analog Characteristics table."
},
{
"number": "45",
"name": "VA+",
"type": "power_in",
"description": "Positive analog power for the internal analog section, 7.6 V to 9.45 V (9.0 V nominal)."
},
{
"number": "46",
"name": "VA-",
"type": "power_in",
"description": "Negative analog power for the internal analog section, -9.45 V to -7.6 V (-9.0 V nominal)."
},
{
"number": "47",
"name": "OUT1",
"type": "output",
"description": "Analog output for channel 1, with full-scale output level given in the Analog Characteristics table."
},
{
"number": "48",
"name": "REFO1",
"type": "output",
"description": "Analog reference output for channel 1."
}
],
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"extractor": "extract_pins 0.3",
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"primary_model": "claude-sonnet-5-5",
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"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet text gives only one 48-pin LQFP package. The 7x7 body size isn't stated in the supplie; The pin-diagram text on page 5 is garbled. Pin numbers were taken from the page 6 pin description ta; Pin types were assigned by function. The datasheet labels DGND as '(Input)', and it is mapped to pow"
],
"pages_sent": 8,
"cost_usd": 0.1459,
"at": "2026-10-22T22:05:56"
},
"datasheet": {
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"sha256": "7308f05875494a5c",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 48,
"described": 48,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"seat": "z = 0",
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"footprint_binding": "identity",
"sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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{
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},
"metadata": {
"specs": {
"Manufacturer": "Cirrus Logic",
"Package": "LQFP-48(7x7)",
"Category": "Communication Interface Chip/UART/485/232",
"Pins": "48"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "7308f05875494a5cfaafff0c9eb504281e2fffe6170f111105248c9927cc0bff",
"rows": [
{
"name": "Positive Analog Supply",
"symbol": "VA+",
"kind": "recommended_operating",
"unit": "V",
"min": 7.6,
"typ": 9,
"max": 9.45,
"conditions": "DGND = 0 V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Negative Analog Supply",
"symbol": "VA-",
"kind": "recommended_operating",
"unit": "V",
"min": -9.45,
"typ": -9,
"max": -7.6,
"conditions": "DGND = 0 V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Digital Supply",
"symbol": "VD",
"kind": "recommended_operating",
"unit": "V",
"min": 3.1,
"typ": 3.3,
"max": 3.5,
"conditions": "DGND = 0 V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Ambient Operating Temperature",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -10,
"typ": null,
"max": 70,
"conditions": "Power applied",
"source_page": 7,
"source": "datasheet"
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{
"name": "Positive Analog Supply",
"symbol": "VA+",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 10.5,
"conditions": "DGND = 0 V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Negative Analog Supply",
"symbol": "VA-",
"kind": "absolute_maximum",
"unit": "V",
"min": -10.5,
"typ": null,
"max": 0.3,
"conditions": "DGND = 0 V",
"source_page": 7,
"source": "datasheet"
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{
"name": "Digital Supply",
"symbol": "VD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.63,
"conditions": "DGND = 0 V",
"source_page": 7,
"source": "datasheet"
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{
"name": "Input Current",
"symbol": "Iin",
"kind": "absolute_maximum",
"unit": "mA",
"min": -10,
"typ": null,
"max": 10,
"conditions": "Any pin except supplies",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Ambient Operating Temperature",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 125,
"conditions": "Power applied",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Storage Temperature",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input Resistance",
"symbol": "RIN",
"kind": "electrical",
"unit": "kΩ",
"min": 8,
"typ": 10,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "THD+N",
"symbol": "THD+N",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": 0.00025,
"max": 0.00063,
"conditions": "Vin = [(VFS Max - VFS Min) - 1.6 V] Vp-p, 1 kHz, Volume = 0 dB",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Dynamic Range",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": 121,
"typ": 127,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Output Noise",
"symbol": "",
"kind": "electrical",
"unit": "μVrms",
"min": null,
"typ": 1.8,
"max": 3.6,
"conditions": "Input grounded, volume = 0 dB",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Offset Voltage",
"symbol": "VOS",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 0.75,
"max": 5,
"conditions": "Input grounded, volume = 0 dB",
"source_page": 8,
"source": "datasheet"
},
{
"name": "AC Load Resistance",
"symbol": "RLOAD",
"kind": "electrical",
"unit": "kΩ",
"min": 2,
"typ": null,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Load Capacitance",
"symbol": "",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 8,
"source": "datasheet"
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{
"name": "Supply Current VA+",
"symbol": "IVA+",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 36,
"max": 50,
"conditions": "No load, Vin = 0 V, normal operation",
"source_page": 8,
"source": "datasheet"
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{
"name": "Supply Current VA-",
"symbol": "IVA-",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 36,
"max": 50,
"conditions": "No load, Vin = 0 V, normal operation",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Supply Current VD",
"symbol": "IVD",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.6,
"max": 1.07,
"conditions": "No load, Vin = 0 V, normal operation",
"source_page": 8,
"source": "datasheet"
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{
"name": "Power Consumption, Normal Operation",
"symbol": "",
"kind": "electrical",
"unit": "mW",
"min": null,
"typ": 650,
"max": 904,
"conditions": "",
"source_page": 8,
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{
"name": "Low-Level Output Voltage",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.4,
"conditions": "Io = 2 mA",
"source_page": 9,
"source": "datasheet"
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{
"name": "Input Leakage Current",
"symbol": "Iin",
"kind": "electrical",
"unit": "μA",
"min": -10,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 9,
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{
"name": "MUTE Active Pulse Width",
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"kind": "timing",
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"min": 2,
"typ": null,
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{
"name": "SCL Clock Frequency",
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"kind": "timing",
"unit": "kHz",
"min": null,
"typ": null,
"max": 100,
"conditions": "I²C format",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Bus Free Time Between Transmissions",
"symbol": "tbuf",
"kind": "timing",
"unit": "µs",
"min": 4.7,
"typ": null,
"max": null,
"conditions": "I²C format",
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{
"name": "Start Condition Hold Time",
"symbol": "thdst",
"kind": "timing",
"unit": "µs",
"min": 4,
"typ": null,
"max": null,
"conditions": "I²C format",
"source_page": 10,
"source": "datasheet"
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