component
AK4458VN
Public Made by Adomby adom
Asahi Kasei Microdevices Global Sourcing Parts, QFN-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "ak4458vn",
"title": "AK4458VN",
"brief": "Asahi Kasei Microdevices Global Sourcing Parts, QFN-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",
"global sourcing parts",
"ak4458vn",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "AK4458VN",
"manufacturer": "Asahi Kasei Microdevices",
"package": "QFN-48(7x7)",
"pin_count": 49,
"category": "Global Sourcing Parts",
"subcategory": "Global Sourcing Parts",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589957139754999809",
"parts": {
"symbol": "ak4458vn.kicad_sym",
"footprint": "ak4458vn.kicad_mod",
"model_3d": "ak4458vn-hero.glb",
"model_3d_plain": "ak4458vn-etched.glb",
"model_3d_step": "ak4458vn-etched.step",
"model_3d_step_plain": "ak4458vn.step",
"lbr": "ak4458vn.lbr"
},
"distributor_links": {
"lcsc": "C1520729",
"digikey": "974-1082-2-ND",
"mouser": "412-AK4458VN"
},
"distributor_check": {
"checked_at": "2026-10-21T01:26:59Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "974-1082-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "412-AK4458VN",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "MCLK",
"type": "input",
"description": "External master clock input; in PCM mode the clock is divided automatically by fs auto-detection, and in DSD mode the rate is set by the DCKS bit."
},
{
"number": "2",
"name": "BICK/DCLK",
"type": "input",
"description": "Audio serial data clock (BICK) in PCM mode and DSD clock (DCLK) in DSD mode; the pin is Hi-Z in power-down."
},
{
"number": "3",
"name": "LRCK/DSDL1",
"type": "input",
"description": "Input channel clock (LRCK) in PCM mode and DSD Lch data input 1 (DSDL1) in DSD mode."
},
{
"number": "4",
"name": "SDTI1/DSDR1",
"type": "input",
"description": "Audio serial data input 1 in PCM mode and DSD Rch data input 1 in DSD mode; must be connected to DVSS if unused."
},
{
"number": "5",
"name": "SDTI2/DSDL2",
"type": "input",
"description": "Audio serial data input 2 in PCM mode and DSD Lch data input 2 in DSD mode; must be connected to DVSS if unused."
},
{
"number": "6",
"name": "SDTI3/DSDR2/TDMO1",
"type": "input",
"description": "Audio serial data input 3 in PCM mode (100kΩ internal pull-down), DSD Rch data input 2 in DSD mode, and TDM serial data output 1 in daisy-chain mode; SDTI3 must be connected to DVSS if unused."
},
{
"number": "7",
"name": "SDTI4/DSDL3/TDMO2",
"type": "input",
"description": "Audio serial data input 4 in PCM mode (100kΩ internal pull-down), DSD Lch data input 3 in DSD mode, and TDM serial data output 2 in daisy-chain mode; SDTI4 must be connected to DVSS if unused."
},
{
"number": "8",
"name": "DSDR3",
"type": "input",
"description": "DSD Rch audio serial data input 3; must be connected to DVSS if unused."
},
{
"number": "9",
"name": "DSDL4",
"type": "input",
"description": "DSD Lch audio serial data input 4; must be connected to DVSS if unused."
},
{
"number": "10",
"name": "DSDR4",
"type": "input",
"description": "DSD Rch audio serial data input 4; must be connected to DVSS if unused."
},
{
"number": "11",
"name": "DZF/SMUTE",
"type": "output",
"description": "Zero-input detect output (DZF) in I2C or 3-wire control mode, and soft-mute control input (SMUTE, 100kΩ pull-down) in parallel mode, where high starts soft mute; DZF must be left open if unused."
},
{
"number": "12",
"name": "CAD1/DCHAIN",
"type": "input",
"description": "Chip address 0 pin (CAD1) in I2C or 3-wire mode, and daisy-chain mode select (DCHAIN) in parallel mode."
},
{
"number": "13",
"name": "SDA/CDTI/TDM0",
"type": "bidirectional",
"description": "Control data I/O (SDA) in I2C mode, control data input (CDTI) in 3-wire mode, and TDM mode select (TDM0) in parallel mode."
},
{
"number": "14",
"name": "SCL/CCLK/TDM1",
"type": "input",
"description": "Control data clock (SCL) in I2C mode, control data clock (CCLK) in 3-wire mode, and TDM mode select (TDM1) in parallel mode."
},
{
"number": "15",
"name": "CAD0_I2C/CSN/DIF",
"type": "input",
"description": "Chip address 0 in I2C mode, chip select (CSN) in 3-wire mode, and audio data format select in parallel mode (L: 32-bit MSB, H: 32-bit I2S)."
},
{
"number": "16",
"name": "PS/CAD0_SPI",
"type": "input",
"description": "Control mode select when the I2C pin is high (L: I2C bus, H: parallel control), and chip address 0 in 3-wire mode when the I2C pin is low."
},
{
"number": "17",
"name": "I2C",
"type": "input",
"description": "Control mode select: L selects 3-wire serial control, H selects I2C bus or parallel control."
},
{
"number": "18",
"name": "AOUTL1P",
"type": "output",
"description": "Lch positive analog output 1; must be left open if unused."
},
{
"number": "19",
"name": "AOUTL1N",
"type": "output",
"description": "Lch negative analog output 1; must be left open if unused."
},
{
"number": "20",
"name": "VREFL1",
"type": "input",
"description": "Negative voltage reference input for DAC1, connected to AVSS."
},
{
"number": "21",
"name": "VREFH1",
"type": "input",
"description": "Positive voltage reference input for DAC1, connected to AVDD (VREFH1-4 must be AVDD−0.5V to AVDD)."
},
{
"number": "22",
"name": "AOUTR1N",
"type": "output",
"description": "Rch negative analog output 1; must be left open if unused."
},
{
"number": "23",
"name": "AOUTR1P",
"type": "output",
"description": "Rch positive analog output 1; must be left open if unused."
},
{
"number": "24",
"name": "AOUTL2P",
"type": "output",
"description": "Lch positive analog output 2; must be left open if unused."
},
{
"number": "25",
"name": "AOUTL2N",
"type": "output",
"description": "Lch negative analog output 2; must be left open if unused."
},
{
"number": "26",
"name": "VREFL2",
"type": "input",
"description": "Negative voltage reference input for DAC2, connected to AVSS."
},
{
"number": "27",
"name": "VREFH2",
"type": "input",
"description": "Positive voltage reference input for DAC2, connected to AVDD (VREFH1-4 must be AVDD−0.5V to AVDD)."
},
{
"number": "28",
"name": "AOUTR2N",
"type": "output",
"description": "Rch negative analog output 2; must be left open if unused."
},
{
"number": "29",
"name": "AOUTR2P",
"type": "output",
"description": "Rch positive analog output 2; must be left open if unused."
},
{
"number": "30",
"name": "AVSS",
"type": "power_in",
"description": "Analog ground; AVSS and DVSS must be connected to the same potential."
},
{
"number": "31",
"name": "AVDD",
"type": "power_in",
"description": "Analog power supply, 3.0V to 5.5V."
},
{
"number": "32",
"name": "AOUTL3P",
"type": "output",
"description": "Lch positive analog output 3; must be left open if unused."
},
{
"number": "33",
"name": "AOUTL3N",
"type": "output",
"description": "Lch negative analog output 3; must be left open if unused."
},
{
"number": "34",
"name": "VREFH3",
"type": "input",
"description": "Positive voltage reference input for DAC3, connected to AVDD (VREFH1-4 must be AVDD−0.5V to AVDD)."
},
{
"number": "35",
"name": "VREFL3",
"type": "input",
"description": "Negative voltage reference input for DAC3, connected to AVSS."
},
{
"number": "36",
"name": "AOUTR3N",
"type": "output",
"description": "Rch negative analog output 3; must be left open if unused."
},
{
"number": "37",
"name": "AOUTR3P",
"type": "output",
"description": "Rch positive analog output 3; must be left open if unused."
},
{
"number": "38",
"name": "AOUTL4P",
"type": "output",
"description": "Lch positive analog output 4; must be left open if unused."
},
{
"number": "39",
"name": "AOUTL4N",
"type": "output",
"description": "Lch negative analog output 4; must be left open if unused."
},
{
"number": "40",
"name": "VREFH4",
"type": "input",
"description": "Positive voltage reference input for DAC4, connected to AVDD (VREFH1-4 must be AVDD−0.5V to AVDD)."
},
{
"number": "41",
"name": "VREFL4",
"type": "input",
"description": "Negative voltage reference input for DAC4, connected to AVSS."
},
{
"number": "42",
"name": "AOUTR4N",
"type": "output",
"description": "Rch negative analog output 4; must be left open if unused."
},
{
"number": "43",
"name": "AOUTR4P",
"type": "output",
"description": "Rch positive analog output 4; must be left open if unused."
},
{
"number": "44",
"name": "LDOE",
"type": "input",
"description": "Internal LDO enable: L disables the internal LDO, H enables it."
},
{
"number": "45",
"name": "TVDD",
"type": "power_in",
"description": "Digital I/O power supply, 3.0V to 3.6V per the pin table (recommended range 1.7V to 3.6V in the operating conditions)."
},
{
"number": "46",
"name": "DVSS",
"type": "power_in",
"description": "Digital ground; AVSS and DVSS must be connected to the same potential."
},
{
"number": "47",
"name": "VDD18",
"type": "power_out",
"description": "LDO output of 1.8V nominal when LDOE is high, requiring a 1.0µF capacitor to DVSS; when LDOE is low it is a 1.8V power input instead."
},
{
"number": "48",
"name": "PDN",
"type": "input",
"description": "Power-down and reset pin: when low the AK4458 is powered down and control registers reset to default."
},
{
"number": "49",
"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: The datasheet's exposed back pad is not a numbered pin and is not in the pin list; per Note 1 it mus; VDD18 has two roles depending on LDOE: output (LDOE=H) or 1.8V input (LDOE=L). Typed as power_out he; Multi-function pins were typed by their primary PCM/control-mode function (or the first listed funct",
"exposed pad 49 added from the footprint"
],
"pages_sent": 20,
"cost_usd": 0.1053,
"at": "2026-10-21T01:23:43"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589957139754999809",
"pages": 90,
"sha256": "1d837ff1e7301b22",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 49,
"described": 49,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ak4458vn.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7,
7,
0.77
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ak4458vn-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7,
7,
0.77
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "77e1c69aa6c812b56812ea84d5d531100dbb32c3772a1ee2f68e5e29905484d1",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Asahi Kasei Microdevices",
"Package": "QFN-48(7x7)",
"Category": "Global Sourcing Parts",
"Pins": "49"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "1d837ff1e7301b2296942b52fc4e49d495d4014f6d6d5beed5ae21e86890cc86",
"rows": [
{
"name": "Power supply difference |AVSS-DVSS|",
"symbol": "|AVSS-DVSS|",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 0.3,
"conditions": "AVSS=DVSS=0V; Note 5",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Analog power supply",
"symbol": "AVDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "Referenced to ground (Note 5)",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Digital I/O power supply",
"symbol": "TVDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4,
"conditions": "Referenced to ground (Note 5)",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Digital core power supply",
"symbol": "VDD18",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 2.5,
"conditions": "Referenced to ground (Note 5)",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Input current, any pin except supplies",
"symbol": "IIN",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Digital input voltage",
"symbol": "VIND",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "Max printed as TVDD+0.3 V",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Ambient temperature (power applied)",
"symbol": "Ta",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 105,
"conditions": "Back pad connected to ground",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Ambient temperature (power applied)",
"symbol": "Ta",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Back pad open",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Analog power supply (LDOE pin = L)",
"symbol": "AVDD",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": 5,
"max": 5.5,
"conditions": "LDOE pin = L (Note 7)",
"source_page": 10,
"source": "datasheet"
},
{
"name": "THD+N (0dBFS)",
"symbol": "THD+N",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": -107,
"max": -100,
"conditions": "AVDD=5.0V; fs=44.1kHz; BW=20kHz; 0dBFS",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Dynamic range",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": 110,
"typ": 115,
"max": null,
"conditions": "AVDD=5.0V; 60dBFS with A-weighted",
"source_page": 11,
"source": "datasheet"
},
{
"name": "S/N (A-weighted)",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": 110,
"typ": 115,
"max": null,
"conditions": "AVDD=5.0V; A-weighted",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Interchannel isolation",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": 100,
"typ": 110,
"max": null,
"conditions": "AVDD=5.0V; 1kHz",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Interchannel gain mismatch",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": 0,
"max": 0.3,
"conditions": "AVDD=5.0V",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Output voltage",
"symbol": "",
"kind": "electrical",
"unit": "Vpp",
"min": 2.65,
"typ": 2.8,
"max": 2.95,
"conditions": "AVDD=5.0V; 0dB, 1kHz sine (Note 13)",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Load resistance",
"symbol": "",
"kind": "electrical",
"unit": "kΩ",
"min": 2,
"typ": null,
"max": null,
"conditions": "AVDD=5.0V; AC load with DC cut capacitor (Note 14)",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Load capacitance",
"symbol": "",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": null,
"max": 30,
"conditions": "AVDD=5.0V (Note 14)",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Power supply current, normal operation",
"symbol": "AVDD",
"kind": "electrical",
"unit": "mA",
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