component
BD37524FS-E2
Public Made by Adomby adom
ROHM Semicon Audio Interface ICs, SSOP-24-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "bd37524fs-e2",
"title": "BD37524FS-E2",
"brief": "ROHM Semicon Audio Interface ICs, SSOP-24-208mil. 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",
"bd37524fs-e2",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "BD37524FS-E2",
"manufacturer": "ROHM Semicon",
"package": "SSOP-24-208mil",
"pin_count": 24,
"category": "Communication Interface Chip/UART/485/232",
"subcategory": "Audio Interface ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/64379d6f411411278780956a0ad6ec33.pdf",
"parts": {
"symbol": "bd37524fs-e2.kicad_sym",
"footprint": "bd37524fs-e2.kicad_mod",
"model_3d": "bd37524fs-e2-hero.glb",
"model_3d_plain": "bd37524fs-e2-etched.glb",
"model_3d_step": "bd37524fs-e2-etched.step",
"model_3d_step_plain": "bd37524fs-e2.step",
"lbr": "bd37524fs-e2.lbr"
},
"distributor_links": {
"lcsc": "C2662556",
"digikey": "BD37524FS-E2-ND",
"mouser": "755-BD37524FS-E2"
},
"distributor_check": {
"checked_at": "2026-10-30T23:57:55Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "BD37524FS-E2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "755-BD37524FS-E2",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "FIL",
"type": "passive",
"description": "Reference bias voltage node for the analog signal system (about 4.25 V); a simple precharge and discharge circuit for an external capacitor is built in."
},
{
"number": "2",
"name": "A1",
"type": "input",
"description": "Signal input terminal for input A, channel 1, with 100 kΩ (typ) input impedance."
},
{
"number": "3",
"name": "A2",
"type": "input",
"description": "Signal input terminal for input A, channel 2, with 100 kΩ (typ) input impedance."
},
{
"number": "4",
"name": "B1",
"type": "input",
"description": "Signal input terminal for input B, channel 1, with 100 kΩ (typ) input impedance."
},
{
"number": "5",
"name": "B2",
"type": "input",
"description": "Signal input terminal for input B, channel 2, with 100 kΩ (typ) input impedance."
},
{
"number": "6",
"name": "CP1",
"type": "input",
"description": "C positive signal input terminal for channel 1, with 250 kΩ (typ) input impedance."
},
{
"number": "7",
"name": "CN",
"type": "input",
"description": "C negative signal input terminal, with 250 kΩ (typ) input impedance."
},
{
"number": "8",
"name": "CP2",
"type": "input",
"description": "C positive signal input terminal for channel 2, with 250 kΩ (typ) input impedance."
},
{
"number": "9",
"name": "D1",
"type": "input",
"description": "Signal input terminal for input D, channel 1, with 250 kΩ (typ) input impedance."
},
{
"number": "10",
"name": "D2",
"type": "input",
"description": "Signal input terminal for input D, channel 2, with 250 kΩ (typ) input impedance."
},
{
"number": "11",
"name": "E1",
"type": "input",
"description": "Signal input terminal for input E, channel 1, with 250 kΩ (typ) input impedance."
},
{
"number": "12",
"name": "E2",
"type": "input",
"description": "Signal input terminal for input E, channel 2, with 250 kΩ (typ) input impedance."
},
{
"number": "13",
"name": "MUTE",
"type": "input",
"description": "External compulsory mute terminal: High level sets mute OFF and Low level sets mute ON; no voltage should be applied while the supply is off unless a series resistor of about 2.2 kΩ is used."
},
{
"number": "14",
"name": "LOUT",
"type": "output",
"description": "Output terminal for the level meter."
},
{
"number": "15",
"name": "OUTS2",
"type": "output",
"description": "Subwoofer output terminal for channel 2 (fader and subwoofer output, about 4.25 V bias)."
},
{
"number": "16",
"name": "OUTS1",
"type": "output",
"description": "Subwoofer output terminal for channel 1 (fader and subwoofer output, about 4.25 V bias)."
},
{
"number": "17",
"name": "OUTR2",
"type": "output",
"description": "Rear output terminal for channel 2 (fader output, about 4.25 V bias)."
},
{
"number": "18",
"name": "OUTR1",
"type": "output",
"description": "Rear output terminal for channel 1 (fader output, about 4.25 V bias)."
},
{
"number": "19",
"name": "OUTF2",
"type": "output",
"description": "Front output terminal for channel 2 (fader output, about 4.25 V bias)."
},
{
"number": "20",
"name": "OUTF1",
"type": "output",
"description": "Front output terminal for channel 1 (fader output, about 4.25 V bias)."
},
{
"number": "21",
"name": "VCC",
"type": "power_in",
"description": "Power supply terminal (7.0 V to 9.5 V supply range per the key specifications)."
},
{
"number": "22",
"name": "SCL",
"type": "input",
"description": "Clock input terminal for I2C BUS communication."
},
{
"number": "23",
"name": "SDA",
"type": "bidirectional",
"description": "Data terminal for I2C BUS communication."
},
{
"number": "24",
"name": "GND",
"type": "power_in",
"description": "Ground terminal."
}
],
"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 mismatch: the requested hint is SSOP-24-208mil, but the datasheet only defines SSOP-A24 (10.; Pin 23 (SDA) is typed bidirectional because it is the I2C data line; the datasheet text only says 'd; Pin 21 VCC supply range (7.0 V to 9.5 V) is taken from the key specifications on page 1 rather than "
],
"pages_sent": 10,
"cost_usd": 0.0506,
"at": "2026-10-30T23:57:42"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/64379d6f411411278780956a0ad6ec33.pdf",
"pages": 34,
"sha256": "30b539a4e0ee229f",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 24,
"described": 24,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "bd37524fs-e2.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7.8,
8.2,
2.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "77dd0a1fc7e70e9eda1bfde9dde937dc6e391803cff9978790523c850c85a21d",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "bd37524fs-e2-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7.8,
8.2,
2.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "da39023b77cdf2c509b0b5f3a22df47bccf5177ada4aee20975c3ef244daafa3",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "ROHM Semicon",
"Package": "SSOP-24-208mil",
"Category": "Communication Interface Chip/UART/485/232",
"Pins": "24"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "30b539a4e0ee229f1a79f7921f6549c4f1782bb4f1957eb72ee630fc89643811",
"rows": [
{
"name": "Power Supply Voltage (absolute maximum)",
"symbol": "VCC",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Power Dissipation",
"symbol": "Pd",
"kind": "absolute_maximum",
"unit": "W",
"min": null,
"typ": null,
"max": 1,
"conditions": "Note 1: standard board 70x70x1.6mm; derate 8mW/°C above Ta=25°C",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Storage Temperature",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Power Supply Voltage (recommended)",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 7,
"typ": null,
"max": 9.5,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Operating Temperature",
"symbol": "Topr",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Circuit Current (No Signal)",
"symbol": "IQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 38,
"max": 48,
"conditions": "No signal",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage Gain",
"symbol": "GV",
"kind": "electrical",
"unit": "dB",
"min": -1.5,
"typ": 0,
"max": 1.5,
"conditions": "GV=20log(VOUT/VIN)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Channel Balance",
"symbol": "CB",
"kind": "electrical",
"unit": "dB",
"min": -1.5,
"typ": 0,
"max": 1.5,
"conditions": "CB = GV1-GV2",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Total Harmonic Distortion 1 (FRONT,REAR)",
"symbol": "THD+N1",
"kind": "electrical",
"unit": "％",
"min": null,
"typ": 0.001,
"max": 0.05,
"conditions": "VOUT=1Vrms, BW=400Hz-30KHz",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Total Harmonic Distortion 2 (SUBWOOFER)",
"symbol": "THD+N2",
"kind": "electrical",
"unit": "％",
"min": null,
"typ": 0.002,
"max": 0.05,
"conditions": "VOUT=1Vrms, BW=400Hz-30KHz",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output Noise Voltage 1 (FRONT,REAR)",
"symbol": "VNO1",
"kind": "electrical",
"unit": "μVrms",
"min": null,
"typ": 3.8,
"max": 15,
"conditions": "Rg = 0Ω, BW = IHF-A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output Noise Voltage 2 (SUBWOOFER)",
"symbol": "VNO2",
"kind": "electrical",
"unit": "μVrms",
"min": null,
"typ": 4.8,
"max": 15,
"conditions": "Rg = 0Ω, BW = IHF-A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Residual Output Noise Voltage",
"symbol": "VNOR",
"kind": "electrical",
"unit": "μVrms",
"min": null,
"typ": 1.8,
"max": 10,
"conditions": "Fader = -∞dB, Rg = 0Ω, BW = IHF-A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Crosstalk Between Channels",
"symbol": "CTC",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": -100,
"max": -90,
"conditions": "Rg = 0Ω, CTC=20log(VOUT/VIN), BW = IHF-A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Ripple Rejection",
"symbol": "RR",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": -70,
"max": -40,
"conditions": "f=1KHz, VRR=100mVrms, RR=20log(VCC IN/VOUT)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input Impedance (A, B)",
"symbol": "RIN_S",
"kind": "electrical",
"unit": "kΩ",
"min": 70,
"typ": 100,
"max": 130,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input Impedance (C,D,E)",
"symbol": "RIN_D",
"kind": "electrical",
"unit": "kΩ",
"min": 175,
"typ": 250,
"max": 325,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Maximum Input Voltage",
"symbol": "VIM",
"kind": "electrical",
"unit": "Vrms",
"min": 2.1,
"typ": 2.3,
"max": null,
"conditions": "VIM at THD+N(VOUT)=1％, BW=400Hz-30KHz",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Crosstalk Between Selectors",
"symbol": "CTS",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": -100,
"max": -90,
"conditions": "Rg = 0Ω, CTS=20log(VOUT/VIN), BW = IHF-A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Common Mode Rejection Ratio",
"symbol": "CMRR",
"kind": "electrical",
"unit": "dB",
"min": 50,
"typ": 65,
"max": null,
"conditions": "CP1 and CN input; CP2 and CN input; CMRR=20log(VIN/VOUT), BW = IHF-A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Minimum Input Gain",
"symbol": "GIN_MIN",
"kind": "electrical",
"unit": "dB",
"min": -2,
"typ": 0,
"max": 2,
"conditions": "Input gain 0dB, VIN=100mVrms, GIN=20log(VOUT/VIN)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Maximum Input Gain",
"symbol": "GIN_MAX",
"kind": "electrical",
"unit": "dB",
"min": 18,
"typ": 20,
"max": 22,
"conditions": "Input gain 20dB, VIN=100mVrms, GIN=20log(VOUT/VIN)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Gain Set Error",
"symbol": "GIN_ERR",
"kind": "electrical",
"unit": "dB",
"min": -2,
"typ": 0,
"max": 2,
"conditions": "GAIN=+20dB to +1dB",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Mute Attenuation",
"symbol": "GMUTE",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": -105,
"max": -85,
"conditions": "Mute ON, GMUTE=20log(VOUT/VIN), BW = IHF-A",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Maximum Gain",
"symbol": "GV_MAX",
"kind": "electrical",
"unit": "dB",
"min": 13,
"typ": 15,
"max": 17,
"conditions": "Volume = 15dB, VIN=100mVrms, GV=20log(VOUT/VIN)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Maximum Attenuation",
"symbol": "GV_MIN",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": -100,
"max": -85,
"conditions": "Volume = -∞dB, GV=20log(VOUT/VIN), BW = IHF-A",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Attenuation Set Error 1",
"symbol": "GV_ERR1",
"kind": "electrical",
"unit": "dB",
"min": -2,
"typ": 0,
"max": 2,
"conditions": "GAIN & ATT=+15dB to -15dB",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Attenuation Set Error 2",
"symbol": "GV_ERR2",
"kind": "electrical",
"unit": "dB",
"min": -3,
"typ": 0,
"max": 3,
"conditions": "ATT=-16dB to -47dB",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Attenuation Set Error 3",
"symbol": "GV_ERR3",
"kind": "electrical",
"unit": "dB",
"min": -4,
"typ": 0,
"max": 4,
"conditions": "ATT=-48dB to -79dB",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Bass Maximum Boost Gain",
"symbol": "GB_BST",
"kind": "electrical",
"unit": "dB",
"min": 18,
"typ": 20,
"max": 22,
"conditions": "Gain=+20dB, f=100Hz, VIN=100mVrms, GB=20log (VOUT/VIN)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Bass Maximum Cut Gain",
"symbol": "GB_CUT",
"kind": "electrical",
"unit": "dB",
"min": -22,
"typ": -20,
"max": -18,
"conditions": "Gain=-20dB, f=100Hz, VIN=2Vrms, GB=20log (VOUT/VIN)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Bass Gain Set Error",
"symbol": "GB_ERR",
"kind": "electrical",
"unit": "dB",
"min": -2,
"typ": 0,
"max": 2,
"conditions": "Gain=+20dB to -20dB, f=100Hz",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Middle Maximum Boost Gain",
"symbol": "GM_BST",
"kind": "electrical",
"unit": "dB",
"min": 18,
"typ": 20,
"max": 22,
"conditions": "gain=+20dB, f=1KHz, VIN=100mVrms, GM=20log (VOUT/VIN)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Middle Maximum Cut Gain",
"symbol": "GM_CUT",
"kind": "electrical",
"unit": "dB",
"min": -22,
"typ": -20,
"max": -18,
"conditions": "Gain=-20dB, f=1KHz, VIN=2Vrms, GM=20log (VOUT/VIN)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Middle Gain Set Error",
"symbol": "GM_ERR",
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