component
AK4558EN
Public Made by Adomby adom
Asahi Kasei Microdevices Audio Interface ICs, QFN-28-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351
{
"schema_version": 1,
"type": "component",
"slug": "ak4558en",
"title": "AK4558EN",
"brief": "Asahi Kasei Microdevices Audio Interface ICs, QFN-28-EP(5x5). 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",
"interface ics",
"ak4558en",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "AK4558EN",
"manufacturer": "Asahi Kasei Microdevices",
"package": "QFN-28-EP(5x5)",
"pin_count": 29,
"category": "Interface ICs",
"subcategory": "Audio Interface ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f6289c5784279025cce215cf0689f555.pdf",
"parts": {
"symbol": "ak4558en.kicad_sym",
"footprint": "ak4558en.kicad_mod",
"model_3d": "ak4558en-hero.glb",
"model_3d_plain": "ak4558en-etched.glb",
"model_3d_step": "ak4558en-etched.step",
"model_3d_step_plain": "ak4558en.step",
"lbr": "ak4558en.lbr"
},
"distributor_links": {
"lcsc": "C2649369",
"digikey": "974-1083-2-ND",
"mouser": "412-AK4558EN"
},
"distributor_check": {
"checked_at": "2026-10-27T01:04:20Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "974-1083-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "412-AK4558EN",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VCOC",
"type": "output",
"description": "PS=H: connect to VSS; PS=L: loop filter output for the PLL circuit, connect to VSS unless PLL mode is used."
},
{
"number": "2",
"name": "PS",
"type": "input",
"description": "Parallel/Serial mode select (L: Serial, H: Parallel); do not change while PDN is H."
},
{
"number": "3",
"name": "CKS3",
"type": "input",
"description": "Mode setting pin #3."
},
{
"number": "4",
"name": "CKS2",
"type": "input",
"description": "Mode setting pin #2."
},
{
"number": "5",
"name": "CKS1",
"type": "input",
"description": "Mode setting pin #1."
},
{
"number": "6",
"name": "CKS0/TDMI",
"type": "input",
"description": "Mode setting pin #0 when PS=H; TDM data input when PS=L."
},
{
"number": "7",
"name": "LRCK",
"type": "bidirectional",
"description": "Input/output channel clock; with PDN=L it outputs L in master mode and Hi-Z in slave mode."
},
{
"number": "8",
"name": "SDTO",
"type": "output",
"description": "Audio serial data output; outputs L when PDN is L."
},
{
"number": "9",
"name": "BICK",
"type": "bidirectional",
"description": "Audio serial data clock input/output; with PDN=L it outputs L in master mode and Hi-Z in slave mode."
},
{
"number": "10",
"name": "SDTI",
"type": "input",
"description": "Audio serial data input."
},
{
"number": "11",
"name": "MCKI",
"type": "input",
"description": "External master clock input."
},
{
"number": "12",
"name": "TVDD",
"type": "power_in",
"description": "LDO and digital I/F power supply, 1.7 to 3.6V (LDOE=L) or 2.4 to 3.6V (LDOE=H)."
},
{
"number": "13",
"name": "VSS2",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "14",
"name": "VDD18",
"type": "bidirectional",
"description": "LDO output when LDOE=H (needs 1µF±50% capacitor to VSS2); 1.8V power input (1.7 to 1.98V) when LDOE=L."
},
{
"number": "15",
"name": "PDN",
"type": "input",
"description": "Power-down and reset pin (L: power-down/reset, H: normal operation); reset once by bringing it L."
},
{
"number": "16",
"name": "PMADL/SCL",
"type": "input",
"description": "ADC Lch power management when PS=H; control data clock (I2C) when PS=L."
},
{
"number": "17",
"name": "PMADR/SDA",
"type": "bidirectional",
"description": "ADC Rch power management input when PS=H; control data input/output (I2C) when PS=L."
},
{
"number": "18",
"name": "PMDAL/CAD0",
"type": "input",
"description": "DAC Lch power management when PS=H; chip address 0 when PS=L."
},
{
"number": "19",
"name": "PMDAR/CAD1",
"type": "input",
"description": "DAC Rch power management when PS=H; chip address 1 when PS=L."
},
{
"number": "20",
"name": "LOPS",
"type": "input",
"description": "DAC output power-save mode control when PS=H; must be connected to VSS2 when PS=L."
},
{
"number": "21",
"name": "LDOE",
"type": "input",
"description": "LDO enable (L: disable, H: enable)."
},
{
"number": "22",
"name": "LIN",
"type": "input",
"description": "Lch analog input."
},
{
"number": "23",
"name": "RIN",
"type": "input",
"description": "Rch analog input."
},
{
"number": "24",
"name": "AVDD",
"type": "power_in",
"description": "Analog power supply, 2.4 to 3.6V (typ. 3.3V)."
},
{
"number": "25",
"name": "VSS1",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "26",
"name": "VCOM",
"type": "output",
"description": "Common voltage output, 0.5 x AVDD; connect 1µF±50% capacitor to VSS1."
},
{
"number": "27",
"name": "LOUT",
"type": "output",
"description": "Lch analog output (100kohm pulldown in power-down)."
},
{
"number": "28",
"name": "ROUT",
"type": "output",
"description": "Rch analog output (100kohm pulldown in power-down)."
},
{
"number": "29",
"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-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The exposed pad on the bottom must be connected to VSS (page 7 note), but the datasheet gives it no ; VDD18 is an LDO output when LDOE=H and a power input when LDOE=L. No single ERC type fits, so bidire; The datasheet lists a 28-pin QFN (AK4558EN) but does not state the exposed-pad size or a package cod"
],
"pages_sent": 23,
"cost_usd": 0.1878,
"at": "2026-10-27T01:04:05"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/f6289c5784279025cce215cf0689f555.pdf",
"pages": 94,
"sha256": "c0c65b703fb88c86",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 29,
"described": 29,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ak4558en.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.92
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "e9d6d740f505b03e5aa0ac826330f9e269344b84656d051f50eb07ac162749eb",
"checked": "2026-10-27",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ak4558en-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.92
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "6bd38b4a465efdc5476544c8e53954eb6162e9b972f6fe2ea003caf59686c8c9",
"checked": "2026-10-27",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Asahi Kasei Microdevices",
"Package": "QFN-28-EP(5x5)",
"Category": "Interface ICs",
"Pins": "29"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"ak4558en"
],
"discovery_pitch": "AK4558EN (Asahi Kasei Microdevices) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"ak4558en.kicad_sym",
"ak4558en.kicad_mod",
"ak4558en.glb",
"ak4558en.step",
"ak4558en.lbr",
"docs/hero.png",
"docs/ak4558en-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"ak4558en-hero.glb",
"ak4558en-hero.overlay.json",
"ak4558en-etched.glb"
],
"visibility": {
"public": true
}
}