component
DSD1791DBR
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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"description": "Texas Instruments ADCs/DACs - Special Purpose, SSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"component": {
"mpn": "DSD1791DBR",
"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/dsd1791",
"parts": {
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"footprint": "dsd1791dbr.kicad_mod",
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"lbr": "dsd1791dbr.lbr"
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"distributor_links": {
"lcsc": "C2667076",
"digikey": "DSD1791DBR-ND",
"mouser": "595-DSD1791DBR"
},
"distributor_check": {
"checked_at": "2026-10-08T15:56:59Z",
"source": "Component Ocean /api/assign-pns",
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"pn": "DSD1791DBR-ND",
"status": "found"
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"status": "found"
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"pins": [
{
"number": "1",
"name": "PLRCK",
"type": "input",
"description": "Left/right clock (fS) input for PCM mode; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "2",
"name": "PBCK",
"type": "input",
"description": "Bit clock input for PCM mode; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "3",
"name": "PDATA",
"type": "input",
"description": "Serial audio data input for PCM mode; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "4",
"name": "DBCK",
"type": "input",
"description": "Bit clock input for DSD mode; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "5",
"name": "SCK",
"type": "input",
"description": "System clock input (128, 192, 256, 384, 512, or 768 fS); Schmitt-trigger input, 5-V tolerant."
},
{
"number": "6",
"name": "RST",
"type": "input",
"description": "Reset input; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "7",
"name": "VDD",
"type": "power_in",
"description": "Digital power supply, 3.3 V nominal (3.0 V to 3.6 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 nominal (4.5 V to 5.5 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 (negative); differential full scale is 3.2 Vp-p across VOUTR+ and VOUTR-."
},
{
"number": "13",
"name": "VOUTR+",
"type": "output",
"description": "R-channel analog voltage output (positive); differential full scale is 3.2 Vp-p across VOUTR+ and VOUTR-."
},
{
"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 nominal (4.5 V to 5.5 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 (positive); differential full scale is 3.2 Vp-p across VOUTL+ and VOUTL-."
},
{
"number": "18",
"name": "VOUTL–",
"type": "output",
"description": "L-channel analog voltage output (negative); differential full scale is 3.2 Vp-p across VOUTL+ and VOUTL-."
},
{
"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 nominal (4.5 V to 5.5 V)."
},
{
"number": "21",
"name": "VCCF",
"type": "power_in",
"description": "Analog power supply for DACFF, 5 V nominal (4.5 V to 5.5 V)."
},
{
"number": "22",
"name": "ZEROR",
"type": "output",
"description": "Zero flag output for R-channel."
},
{
"number": "23",
"name": "ZEROL",
"type": "output",
"description": "Zero flag output for L-channel."
},
{
"number": "24",
"name": "DSDR",
"type": "input",
"description": "R-channel audio data input for DSD mode; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "25",
"name": "DSDL",
"type": "input",
"description": "L-channel audio data input for DSD mode; Schmitt-trigger input, 5-V tolerant."
},
{
"number": "26",
"name": "MDI",
"type": "bidirectional",
"description": "Mode control data input/output for the SPI control port; Schmitt-trigger input with CMOS output, 5-V tolerant input."
},
{
"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/output; Schmitt-trigger input with CMOS output, 5-V tolerant input."
}
],
"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 gives no electrical type for VCOM (only 'Internal bias decoupling pin'); 'passive' is ; Supply and ground pins are typed power_in per the KiCad convention stated in the task; the datasheet; In the external digital filter mode (DFMS=1) the datasheet reassigns DSDL/DSDR (pins 25/26 per page "
],
"pages_sent": 16,
"cost_usd": 0.0891,
"at": "2026-10-08T15:56:31"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/dsd1791",
"pages": 57,
"sha256": "8d7f67fecf6bfb0c",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 28,
"described": 28,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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