component
PCM1791ADBR
Public Made by Adomby adom
Texas Instruments ADCs/DACs - Special Purpose, SSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "PCM1791ADBR",
"brief": "Texas Instruments ADCs/DACs - Special Purpose, SSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
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"manufacturer": "Texas Instruments",
"package": "SSOP-28",
"pin_count": 28,
"category": "Data Acquisition",
"subcategory": "ADCs/DACs - Special Purpose",
"datasheet": "https://www.ti.com/cn/lit/gpn/pcm1791a",
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"distributor_links": {
"lcsc": "C2651630",
"digikey": "296-41375-2-ND",
"mouser": "595-PCM1791ADBR"
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{
"number": "1",
"name": "LRCK",
"type": "input",
"description": "Left and right clock (fS) input; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "2",
"name": "BCK",
"type": "input",
"description": "Bit clock input; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "3",
"name": "DATA",
"type": "input",
"description": "Serial audio data input; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "4",
"name": "MUTE",
"type": "input",
"description": "Analog output mute control; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "5",
"name": "SCK",
"type": "input",
"description": "System clock input; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "6",
"name": "RST",
"type": "input",
"description": "Reset; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "7",
"name": "VDD",
"type": "power_in",
"description": "Digital power supply, 3.3 V."
},
{
"number": "8",
"name": "DGND",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "9",
"name": "AGNDF",
"type": "power_in",
"description": "Analog ground for DACFF."
},
{
"number": "10",
"name": "VCCR",
"type": "power_in",
"description": "Analog power supply for R-channel I/V, 5 V."
},
{
"number": "11",
"name": "AGNDR",
"type": "power_in",
"description": "Analog ground for R-channel I/V."
},
{
"number": "12",
"name": "VOUTR−",
"type": "output",
"description": "R-channel analog voltage output −."
},
{
"number": "13",
"name": "VOUTR+",
"type": "output",
"description": "R-channel analog voltage output +."
},
{
"number": "14",
"name": "VCOM",
"type": "passive",
"description": "Internal bias decoupling pin."
},
{
"number": "15",
"name": "VCCC",
"type": "power_in",
"description": "Analog power supply for internal bias and current DAC, 5 V."
},
{
"number": "16",
"name": "AGNDC",
"type": "power_in",
"description": "Analog ground for internal bias and current DAC."
},
{
"number": "17",
"name": "VOUTL+",
"type": "output",
"description": "L-channel analog voltage output +."
},
{
"number": "18",
"name": "VOUTL−",
"type": "output",
"description": "L-channel analog voltage output −."
},
{
"number": "19",
"name": "AGNDL",
"type": "power_in",
"description": "Analog ground for L-channel I/V."
},
{
"number": "20",
"name": "VCCL",
"type": "power_in",
"description": "Analog power supply for L-channel I/V, 5 V."
},
{
"number": "21",
"name": "VCCF",
"type": "power_in",
"description": "Analog power supply for DACFF, 5 V."
},
{
"number": "22",
"name": "ZEROR",
"type": "output",
"description": "Zero flag for R-channel."
},
{
"number": "23",
"name": "ZEROL",
"type": "output",
"description": "Zero flag for L-channel."
},
{
"number": "24",
"name": "MSEL",
"type": "input",
"description": "I2C/SPI select; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "25",
"name": "MDO",
"type": "tri_state",
"description": "Mode control readback data output; 3-state output."
},
{
"number": "26",
"name": "MDI",
"type": "bidirectional",
"description": "Mode control data input; Schmitt-trigger input and output with 5-V tolerant input, open-drain 3-state output in I2C mode, otherwise CMOS output."
},
{
"number": "27",
"name": "MC",
"type": "input",
"description": "Mode control clock input; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "28",
"name": "MS",
"type": "bidirectional",
"description": "Mode control chip select input; Schmitt-trigger input and output with 5-V tolerant input and CMOS output."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
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"primary_model": "claude-haiku-5-5",
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"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The page 5 pin diagram text is scrambled by extraction, so the pin-to-number mapping was taken from ; VCOM is listed only as an internal bias decoupling pin with no I/O type given; typed as passive. Con; Datasheet footnote 3 calls MDO a 3-state output with no further drive detail; typed as tri_state."
],
"pages_sent": 16,
"cost_usd": 0.0839,
"at": "2026-10-08T15:44:59"
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"datasheet": {
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"pages": 63,
"sha256": "7f59e1288958b82d",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
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"Package": "SSOP-28",
"Category": "Data Acquisition",
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