component
AK7735EQ
Public Made by Adomby adom
Asahi Kasei Microdevices Audio Interface ICs, LQFP-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": "ak7735eq",
"title": "AK7735EQ",
"brief": "Asahi Kasei Microdevices 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",
"interface ics",
"ak7735eq",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "AK7735EQ",
"manufacturer": "Asahi Kasei Microdevices",
"package": "LQFP-48(7x7)",
"pin_count": 48,
"category": "Interface ICs",
"subcategory": "Audio Interface ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a4c659373aee2a27a6103f0ce35bb3cc.pdf",
"parts": {
"symbol": "ak7735eq.kicad_sym",
"footprint": "ak7735eq.kicad_mod",
"model_3d": "ak7735eq-hero.glb",
"model_3d_plain": "ak7735eq-etched.glb",
"model_3d_step": "ak7735eq-etched.step",
"model_3d_step_plain": "ak7735eq.step",
"lbr": "ak7735eq.lbr"
},
"distributor_links": {
"lcsc": "C2651820",
"digikey": "974-1152-2-ND"
},
"distributor_check": {
"checked_at": "2026-10-30T23:41:16Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "974-1152-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "AOUT2R",
"type": "output",
"description": "DAC2 Rch analog output; it outputs Hi-Z during power-down, and the pin is supplied from AVDD."
},
{
"number": "2",
"name": "AOUT2L",
"type": "output",
"description": "DAC2 Lch analog output; it outputs Hi-Z during power-down, and the pin is supplied from AVDD."
},
{
"number": "3",
"name": "TESTI",
"type": "input",
"description": "Test input pin that must be tied low."
},
{
"number": "4",
"name": "LRCK3",
"type": "bidirectional",
"description": "LR channel select clock 3 pin (I/O), referenced to VDD33."
},
{
"number": "5",
"name": "SDOUT4/GPO2",
"type": "output",
"description": "Serial data output 4 pin, or GPO output 2 of DSP2 when selected by DO4SEL; it is pulled down and outputs low in power-down."
},
{
"number": "6",
"name": "BICK3",
"type": "bidirectional",
"description": "Serial bit clock 3 pin (I/O), referenced to VDD33."
},
{
"number": "7",
"name": "SDOUT3/CLKO/GPO1",
"type": "output",
"description": "Serial data output 3 pin, or master clock output (CLKO) or GPO output 1 of DSP1 when selected by DO3SEL; it is pulled down and outputs low in power-down."
},
{
"number": "8",
"name": "SDIN3/JX3",
"type": "input",
"description": "Serial data input 3 pin, or external conditional jump input 3 when selected by DI3SEL; maximum input voltage is the smaller of (VDD33+0.3)V and 4.3V."
},
{
"number": "9",
"name": "SDIN4",
"type": "input",
"description": "Serial data input 4 pin; maximum input voltage is the smaller of (VDD33+0.3)V and 4.3V."
},
{
"number": "10",
"name": "DVSS1",
"type": "power_in",
"description": "Digital ground 1 pin at 0 V; must be connected to the same ground as AVSS and DVSS2/DVSS3."
},
{
"number": "11",
"name": "VDD33",
"type": "power_in",
"description": "Digital I/F power supply pin, 3.0 to 3.6 V (typ. 3.3 V)."
},
{
"number": "12",
"name": "XTI",
"type": "input",
"description": "Crystal oscillator input pin; connect the crystal between XTI and XTO, or leave open when not used."
},
{
"number": "13",
"name": "XTO",
"type": "output",
"description": "Crystal oscillator output pin; connect the crystal between XTI and XTO, or leave open when no crystal is used."
},
{
"number": "14",
"name": "SDIN2/JX0",
"type": "input",
"description": "Serial data input 2 pin, or external conditional jump input 0 when selected by DI2SEL; referenced to TVDD."
},
{
"number": "15",
"name": "LRCK2/JX1",
"type": "bidirectional",
"description": "LR channel select clock 2 pin (I/O), or external conditional jump input 1 when selected by LCK2SEL (requires MSN2 = 0); referenced to TVDD."
},
{
"number": "16",
"name": "BICK2/JX2",
"type": "bidirectional",
"description": "Serial bit clock 2 pin (I/O), or external conditional jump input 2 when selected by BCK2SEL (requires MSN2 = 0); referenced to TVDD."
},
{
"number": "17",
"name": "SDIN1",
"type": "input",
"description": "Serial data input 1 pin; referenced to TVDD."
},
{
"number": "18",
"name": "LRCK1",
"type": "bidirectional",
"description": "LR channel select clock 1 pin (I/O); referenced to TVDD."
},
{
"number": "19",
"name": "BICK1",
"type": "bidirectional",
"description": "Serial bit clock 1 pin (I/O); referenced to TVDD."
},
{
"number": "20",
"name": "SDOUT1/RDY",
"type": "output",
"description": "Serial data output 1 pin, or RDY signal output when selected by DO1SEL; it is pulled down and outputs low in power-down."
},
{
"number": "21",
"name": "TVDD",
"type": "power_in",
"description": "Digital I/F power supply pin, 1.7 to 3.6 V (typ. 3.3 V)."
},
{
"number": "22",
"name": "DVSS2",
"type": "power_in",
"description": "Digital ground 2 pin at 0 V; must be connected to the same ground as the other ground pins."
},
{
"number": "23",
"name": "STO/RDY/SDOUT2",
"type": "output",
"description": "Status output pin (STO, output low in power-down), or RDY signal output, or SDOUT2 serial data output depending on DO2SEL; it is pulled down in power-down."
},
{
"number": "24",
"name": "CSN",
"type": "input",
"description": "SPI chip select pin, to be held high during power-down or when SPI is not used; in I2C mode it is the chip address pin and must be pulled up or pulled down."
},
{
"number": "25",
"name": "SO/SDA",
"type": "bidirectional",
"description": "Serial data output pin for SPI (must be pulled up or down in SPI mode, Hi-Z in power-down), or serial data I/O for I2C; referenced to TVDD."
},
{
"number": "26",
"name": "SCLK/SCL",
"type": "input",
"description": "Serial data clock input pin for SPI, or serial clock input for I2C; referenced to TVDD."
},
{
"number": "27",
"name": "SI/I2CFIL",
"type": "input",
"description": "Serial data input pin for SPI, or I2C mode select input in I2C mode (L = Fast Mode 400 kHz, H = Fast Mode Plus 1 MHz, which should be fixed to TVDD2 as printed); referenced to TVDD."
},
{
"number": "28",
"name": "PDN",
"type": "input",
"description": "Power-down pin that must be held low while power is supplied and may be set high only after all power supplies are applied and settled; referenced to TVDD."
},
{
"number": "29",
"name": "AVDRV",
"type": "output",
"description": "VREG output pin; connect a 2.2 uF (±30%) ceramic capacitor between this pin and DVSS3, and do not connect it to an external circuit."
},
{
"number": "30",
"name": "DVSS3",
"type": "power_in",
"description": "Digital ground 3 pin at 0 V; must be connected to the same ground as the other ground pins."
},
{
"number": "31",
"name": "LVDD",
"type": "power_in",
"description": "Digital core power supply pin, 3.0 to 3.6 V (typ. 3.3 V)."
},
{
"number": "32",
"name": "AIN2RN/AIN4R",
"type": "input",
"description": "ADC2 Rch inverted differential input 2, or ADC2 Rch single-ended input 4; referenced to AVDD."
},
{
"number": "33",
"name": "AIN2RP/AIN3R",
"type": "input",
"description": "ADC2 Rch non-inverted differential input 2, or ADC2 Rch single-ended input 3; referenced to AVDD."
},
{
"number": "34",
"name": "AIN2LN/AIN4L",
"type": "input",
"description": "ADC2 Lch inverted differential input 2, or ADC2 Lch single-ended input 4; referenced to AVDD."
},
{
"number": "35",
"name": "AIN2LP/AIN3L",
"type": "input",
"description": "ADC2 Lch non-inverted differential input 2, or ADC2 Lch single-ended input 3; referenced to AVDD."
},
{
"number": "36",
"name": "INN2",
"type": "input",
"description": "ADC1 Rch inverted differential input 2; referenced to AVDD."
},
{
"number": "37",
"name": "AIN1R/INP2",
"type": "input",
"description": "ADC1 Rch single-ended input 1, or ADC1 Rch non-inverted differential input 2; referenced to AVDD."
},
{
"number": "38",
"name": "INN1",
"type": "input",
"description": "ADC1 Lch inverted differential input 1; referenced to AVDD."
},
{
"number": "39",
"name": "AIN1L/INP1",
"type": "input",
"description": "ADC1 Lch single-ended input 1, or ADC1 Lch non-inverted differential input 1; referenced to AVDD."
},
{
"number": "40",
"name": "MPREF",
"type": "output",
"description": "Ripple filter pin for the microphone power supply; connect a 1 uF ceramic capacitor between this pin and AVSS, and do not connect it to an external circuit."
},
{
"number": "41",
"name": "MPWR",
"type": "output",
"description": "Power supply output pin for the microphone, which outputs Hi-Z during power-down."
},
{
"number": "42",
"name": "AVDD",
"type": "power_in",
"description": "Analog power supply pin, 3.0 to 3.6 V (typ. 3.3 V)."
},
{
"number": "43",
"name": "AVSS",
"type": "power_in",
"description": "Analog ground pin at 0 V; must be connected to the same ground as DVSS1/DVSS2/DVSS3."
},
{
"number": "44",
"name": "VCOM",
"type": "output",
"description": "Analog common voltage output pin (AVDD/2); connect a 2.2 uF ceramic capacitor between this pin and AVSS, do not connect it to an external circuit, and it outputs low in power-down."
},
{
"number": "45",
"name": "VREFH",
"type": "input",
"description": "Analog high-level reference voltage input pin that must be connected to AVDD."
},
{
"number": "46",
"name": "VREFL",
"type": "input",
"description": "Analog low-level reference voltage input pin that must be connected to AVSS."
},
{
"number": "47",
"name": "AOUT1R",
"type": "output",
"description": "DAC1 Rch analog output pin, which outputs Hi-Z during power-down."
},
{
"number": "48",
"name": "AOUT1L",
"type": "output",
"description": "DAC1 Lch analog output pin, which outputs Hi-Z during power-down."
}
],
"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: These pins are multiplexed with GPO, CLKO, RDY or SDOUT functions selected by control registers; the; These pins are multiplexed with JX (conditional jump) inputs or serial data inputs; the type given i; Pin 25 is SO (SPI output) or SDA (I2C I/O) depending on the interface; it is typed as bidirectional "
],
"pages_sent": 38,
"cost_usd": 0.1671,
"at": "2026-10-30T23:41:05"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/a4c659373aee2a27a6103f0ce35bb3cc.pdf",
"pages": 142,
"sha256": "2ca2c4f05a8540c6",
"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": "ak7735eq.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ak7735eq-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "f402b341f428215643cccdef49f47e50a39a594b5e1213ae77fdee2a5bfc2473",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "LQFP-48",
"source_page": 141,
"e": {
"nom_mm": 0.5,
"range_mm": [
null,
null
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "ak7735eq.step",
"verdict": "SKIP",
"reasons": [
"the datasheet dimensions give no height or body size to compare"
],
"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "Asahi Kasei Microdevices",
"Package": "LQFP-48(7x7)",
"Category": "Interface ICs",
"Pins": "48"
},
"appearance": {
"contacts": {
"quote": "Lead frame: Copper",
"page": 139,
"doc": "ds.pdf",
"material": "Copper"
},
"version": 1,
"datasheet_sha256": "2ca2c4f05a8540c6ee5a8e18b30560dabcea373b5dbe7b1267ad6caa9641a57f"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "2ca2c4f05a8540c6ee5a8e18b30560dabcea373b5dbe7b1267ad6caa9641a57f",
"rows": [
{
"name": "Analog Supply Voltage (absolute max)",
"symbol": "AVDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4.3,
"conditions": "AVSS=DVSS1=DVSS2=DVSS3=0V",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Digital1 (Core) Supply Voltage (absolute max)",
"symbol": "LVDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4.3,
"conditions": "AVSS=DVSS1=DVSS2=DVSS3=0V",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Digital2 (I/F) Supply Voltage (absolute max)",
"symbol": "TVDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4.3,
"conditions": "AVSS=DVSS1=DVSS2=DVSS3=0V",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Digital3 (I/F) Supply Voltage (absolute max)",
"symbol": "VDD33",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4.3,
"conditions": "AVSS=DVSS1=DVSS2=DVSS3=0V",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Difference between grounds (AVSS, DVSS1, DVSS2, DVSS3) (absolute max)",
"symbol": "ΔGND",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 0.3,
"conditions": "",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Input Current (except power supply pins) (absolute max)",
"symbol": "IIN",
"kind": "absolute_maximum",
"unit": "mA",
"min": -10,
"typ": null,
"max": 10,
"conditions": "except power supply pins",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Analog Input Voltage (absolute max)",
"symbol": "VINA",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "max = smaller of (AVDD+0.3) and 4.3 (note 4)",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Digital Input Voltage, TVDD group (absolute max)",
"symbol": "VIND1",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "max = smaller of (TVDD+0.3) and 4.3 (note 5)",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Digital Input Voltage, VDD33 group (absolute max)",
"symbol": "VIND2",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "max = smaller of (VDD33+0.3) and 4.3 (note 6)",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Ambient Temperature (AK7735EQ) (absolute max)",
"symbol": "Ta",
"kind": "absolute_maximum",
"unit": "°C",
"min": -20,
"typ": null,
"max": 85,
"conditions": "AK7735EQ",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Storage Temperature (absolute max)",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Analog Supply Voltage (recommended)",
"symbol": "AVDD",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": 3.3,
"max": 3.6,
"conditions": "AVSS=DVSS1=DVSS2=DVSS3=0V",
"source_page": 13,
"source": "datasheet"
},
{
"name": "Digital1 (Core) Supply Voltage (recommended)",
"symbol": "LVDD",
"kind": "recommended_operating",
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