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PCM1801U
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Texas Instruments ADCs/DACs - Special Purpose, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+50@@ -0,0 +1,50 @@+# PCM1801U++**Texas Instruments** · ADCs/DACs - Special Purpose · SOIC-14++PCM1801U from Texas Instruments, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VINL | input | Left-channel analog input with a full-scale input of 2.828 Vp-p, a 2.1 V center voltage and 30 kΩ input impedance. |+| 2 | VINR | input | Right-channel analog input with a full-scale input of 2.828 Vp-p, a 2.1 V center voltage and 30 kΩ input impedance. |+| 3 | DGND | power_in | Digital ground, not internally connected to AGND, and should be connected directly to AGND under the package with low impedance. |+| 4 | VDD | power_in | Digital power supply, 4.5 V to 5.5 V (5 V nominal). |+| 5 | SCKI | input | System clock input (Schmitt-trigger, TTL family) that must be 256 fS, 384 fS, or 512 fS, with an 8.192 MHz to 24.576 MHz range. |+| 6 | BCK | input | Bit clock input (Schmitt-trigger) for the audio data interface, with a minimum BCK period of 300 ns. |+| 7 | LRCK | input | Sampling clock (word clock) input (Schmitt-trigger), which must be synchronized to SCKI, over a 4 kHz to 48 kHz sampling range. |+| 8 | DOUT | output | Audio data output, forced to zero during power-on reset, with a recommended load capacitance of 10 pF maximum. |+| 9 | BYPAS | input | HPF bypass control with a 100-kΩ typical internal pulldown; LOW enables the high-pass (dc cut) filter and HIGH bypasses it. |+| 10 | FMT | input | Audio data format select with a 100-kΩ typical internal pulldown; LOW selects 16-bit left-justified and HIGH selects 16-bit I2S. |+| 11 | VCC | power_in | Analog power supply, 4.5 V to 5.5 V (5 V nominal). |+| 12 | AGND | power_in | Analog ground, not internally connected to DGND. |+| 13 | VREF2 | passive | Reference 2 decoupling pin; a 4.7 µF tantalum capacitor is recommended from VREF2 to AGND, placed as close as possible to the pin. |+| 14 | VREF1 | passive | Reference 1 decoupling pin; a 4.7 µF tantalum capacitor is recommended from VREF1 to AGND, placed as close as possible to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-14 |+| Category | Data Acquisition |+| Pins | 14 |++## CAD (KiCad official)++- Symbol: `PCM1801U`+- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`+- 3D model: SOIC-14 (KiCad packages3D, STEP)+- 3D model files: `pcm1801u-etched.step` / `pcm1801u-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pcm1801u.step` / `pcm1801u.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/pcm1801) (26 pp, sha256 `cddeda6b088aefa3`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/pcm1801u-datasheet.pdf)
page.jsonadded+236@@ -0,0 +1,236 @@+{+ "slug": "pcm1801u",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments ADCs/DACs - Special Purpose, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "data acquisition",+ "pcm1801u",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "pcm1801u.kicad_sym",+ "pcm1801u.kicad_mod",+ "pcm1801u.glb",+ "pcm1801u.step",+ "pcm1801u.lbr",+ "docs/hero.png",+ "docs/pcm1801u-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "pcm1801u-hero.glb",+ "pcm1801u-hero.overlay.json"+ ],+ "component": {+ "mpn": "PCM1801U",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-14",+ "pin_count": 14,+ "category": "Data Acquisition",+ "subcategory": "ADCs/DACs - Special Purpose",+ "datasheet": "https://www.ti.com/cn/lit/gpn/pcm1801",+ "parts": {+ "symbol": "pcm1801u.kicad_sym",+ "footprint": "pcm1801u.kicad_mod",+ "model_3d": "pcm1801u-hero.glb",+ "model_3d_plain": "pcm1801u.glb",+ "model_3d_step": "pcm1801u-etched.step",+ "model_3d_step_plain": "pcm1801u.step",+ "lbr": "pcm1801u.lbr"+ },+ "distributor_links": {+ "lcsc": "C2866669",+ "digikey": "PCM1801U-ND",+ "mouser": "595-PCM1801U"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T16:42:53Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "PCM1801U-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-PCM1801U",+ "status": "found",+ "lifecycle": "End of Life"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VINL",+ "type": "input",+ "description": "Left-channel analog input with a full-scale input of 2.828 Vp-p, a 2.1 V center voltage and 30 kΩ input impedance."+ },+ {+ "number": "2",+ "name": "VINR",+ "type": "input",+ "description": "Right-channel analog input with a full-scale input of 2.828 Vp-p, a 2.1 V center voltage and 30 kΩ input impedance."+ },+ {+ "number": "3",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital ground, not internally connected to AGND, and should be connected directly to AGND under the package with low impedance."+ },+ {+ "number": "4",+ "name": "VDD",+ "type": "power_in",+ "description": "Digital power supply, 4.5 V to 5.5 V (5 V nominal)."+ },+ {+ "number": "5",+ "name": "SCKI",+ "type": "input",+ "description": "System clock input (Schmitt-trigger, TTL family) that must be 256 fS, 384 fS, or 512 fS, with an 8.192 MHz to 24.576 MHz range."+ },+ {+ "number": "6",+ "name": "BCK",+ "type": "input",+ "description": "Bit clock input (Schmitt-trigger) for the audio data interface, with a minimum BCK period of 300 ns."+ },+ {+ "number": "7",+ "name": "LRCK",+ "type": "input",+ "description": "Sampling clock (word clock) input (Schmitt-trigger), which must be synchronized to SCKI, over a 4 kHz to 48 kHz sampling range."+ },+ {+ "number": "8",+ "name": "DOUT",+ "type": "output",+ "description": "Audio data output, forced to zero during power-on reset, with a recommended load capacitance of 10 pF maximum."+ },+ {+ "number": "9",+ "name": "BYPAS",+ "type": "input",+ "description": "HPF bypass control with a 100-kΩ typical internal pulldown; LOW enables the high-pass (dc cut) filter and HIGH bypasses it."+ },+ {+ "number": "10",+ "name": "FMT",+ "type": "input",+ "description": "Audio data format select with a 100-kΩ typical internal pulldown; LOW selects 16-bit left-justified and HIGH selects 16-bit I2S."+ },+ {+ "number": "11",+ "name": "VCC",+ "type": "power_in",+ "description": "Analog power supply, 4.5 V to 5.5 V (5 V nominal)."+ },+ {+ "number": "12",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground, not internally connected to DGND."+ },+ {+ "number": "13",+ "name": "VREF2",+ "type": "passive",+ "description": "Reference 2 decoupling pin; a 4.7 µF tantalum capacitor is recommended from VREF2 to AGND, placed as close as possible to the pin."+ },+ {+ "number": "14",+ "name": "VREF1",+ "type": "passive",+ "description": "Reference 1 decoupling pin; a 4.7 µF tantalum capacitor is recommended from VREF1 to AGND, placed as close as possible to the pin."+ }+ ],+ "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 explicit ERC type for the VREF1/VREF2 decoupling pins; they are typed as pass; The analog inputs are typed as 'input' per KiCad convention; the datasheet describes them only as an; The datasheet lists the 14-pin SOIC (package D) as the only package for PCM1801U, so no package vari"+ ],+ "pages_sent": 26,+ "cost_usd": 0.0977,+ "at": "2026-10-08T16:42:28"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/pcm1801",+ "pages": 26,+ "sha256": "cddeda6b088aefa3",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 14,+ "described": 14,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "pcm1801u.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 8.7,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "pcm1801u-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 8.7,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "08808001aef0584b66adf30693717d0b78a540cb329916368351b955ccc0d9c2",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}