component
PCM2912APJT
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Texas Instruments Audio Interface ICs, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+68@@ -0,0 +1,68 @@+# PCM2912APJT++**Texas Instruments** · Audio Interface ICs · TQFP-32(7x7)++PCM2912APJT from Texas Instruments, in a TQFP-32(7x7). 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 | BGND | power_in | Reference for internal regulator, analog ground. |+| 2 | VBUS | power_in | Connect to USB power (VBUS). |+| 3 | D- | bidirectional | USB differential input/output minus (LV-TTL level). |+| 4 | D+ | bidirectional | USB differential input/output plus (LV-TTL level). |+| 5 | VDD | power_in | Digital power supply; connect decoupling capacitor to corresponding ground. |+| 6 | DGND | power_in | Digital ground. |+| 7 | XTO | output | Crystal oscillator output. |+| 8 | XTI | input | Crystal oscillator input (3.3-V CMOS level). |+| 9 | FL | passive | External filter pin of L-channel (optional). |+| 10 | FR | passive | External filter pin of R-channel (optional). |+| 11 | VCOM1 | passive | Common voltage for ADC, DAC, and analog front-end (VCCA/2); decoupling capacitor must be connected to AGND. |+| 12 | VCOM2 | passive | Common voltage for headphone (VCCA/2); decoupling capacitor must be connected to AGND. |+| 13 | AGND | power_in | Analog ground. |+| 14 | NC | unconnected | Not connected. |+| 15 | VCCA | power_in | Analog power supply; connect decoupling capacitor to corresponding ground. |+| 16 | VIN | power_in | ADC microphone input. |+| 17 | MBIAS | output | Microphone bias output (0.75 VCCA). |+| 18 | VOUTL | output | Headphone output for L-channel. |+| 19 | VCCL | power_in | Analog power supply for headphone amplifier of L-channel; connect decoupling capacitor to corresponding ground. |+| 20 | HGND | power_in | Analog ground for headphone amplifier. |+| 21 | VCCR | power_in | Analog power supply for headphone amplifier of R-channel; connect decoupling capacitor to corresponding ground. |+| 22 | VOUTR | output | Headphone output for R-channel. |+| 23 | MAMP | input | Microphone preamplifier gain control (LOW: Preamplifier off, HIGH: Preamplifier on = +20 dB); 3.3-V CMOS level. |+| 24 | POWER | input | Power consumption declaration select pin (LOW: 100 mA, HIGH: 500 mA); 3.3-V CMOS level. |+| 25 | PGND | power_in | Analog ground for microphone bias, microphone amplifier, and PGA. |+| 26 | VCCP | power_in | Analog power supply for PLL; connect decoupling capacitor to corresponding ground. |+| 27 | TEST1 | input | Test pin; must be set to HIGH (3.3-V CMOS level). |+| 28 | TEST0 | input | Test pin; must be set to LOW (3.3-V CMOS level). |+| 29 | SSPND | output | Suspend flag (LOW: Suspend, HIGH: Operational state). |+| 30 | MMUTE | input | Microphone mute control, active HIGH (LOW: Mute off, HIGH: Mute on); 3.3-V CMOS level with internal pulldown resistor. |+| 31 | REC | output | Status output for record (LOW: Record, FLASH: Mute on record, HIGH: Stop); 5-V tolerant, open-drain. |+| 32 | PLAY | output | Status output for playback (LOW: Playback, FLASH: Mute on playback, HIGH: Stop); 5-V tolerant, open-drain. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TQFP-32(7x7) |+| Category | Interface |+| Pins | 32 |++## CAD (KiCad official)++- Symbol: `PCM2912APJT`+- Footprint: `Package_QFP:TQFP-32_7x7mm_P0.8mm`+- 3D model: TQFP-32(7x7) (KiCad packages3D, STEP)+- 3D model files: `pcm2912apjt-etched.step` / `pcm2912apjt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pcm2912apjt.step` / `pcm2912apjt.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/pcm2912a) (37 pp, sha256 `61d048c255190975`, retrieved 2026-10-01, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/pcm2912apjt-datasheet.pdf)
page.jsonadded+299@@ -0,0 +1,299 @@+{+ "slug": "pcm2912apjt",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Audio Interface ICs, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "pcm2912apjt",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "pcm2912apjt.kicad_sym",+ "pcm2912apjt.kicad_mod",+ "pcm2912apjt.glb",+ "pcm2912apjt.step",+ "pcm2912apjt.lbr",+ "docs/hero.png",+ "docs/pcm2912apjt-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "PCM2912APJT",+ "manufacturer": "Texas Instruments",+ "package": "TQFP-32(7x7)",+ "pin_count": 32,+ "category": "Interface",+ "subcategory": "Audio Interface ICs",+ "datasheet": "https://www.ti.com/cn/lit/gpn/pcm2912a",+ "parts": {+ "symbol": "pcm2912apjt.kicad_sym",+ "footprint": "pcm2912apjt.kicad_mod",+ "model_3d": "pcm2912apjt-etched.glb",+ "model_3d_plain": "pcm2912apjt.glb",+ "model_3d_step": "pcm2912apjt-etched.step",+ "model_3d_step_plain": "pcm2912apjt.step",+ "lbr": "pcm2912apjt.lbr"+ },+ "distributor_links": {+ "lcsc": "C1521514",+ "digikey": "296-23950-ND",+ "mouser": "595-PCM2912APJT"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T01:03:34Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-23950-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-PCM2912APJT",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "BGND",+ "type": "power_in",+ "description": "Reference for internal regulator, analog ground."+ },+ {+ "number": "2",+ "name": "VBUS",+ "type": "power_in",+ "description": "Connect to USB power (VBUS)."+ },+ {+ "number": "3",+ "name": "D–",+ "type": "bidirectional",+ "description": "USB differential input/output minus (LV-TTL level)."+ },+ {+ "number": "4",+ "name": "D+",+ "type": "bidirectional",+ "description": "USB differential input/output plus (LV-TTL level)."+ },+ {+ "number": "5",+ "name": "VDD",+ "type": "power_in",+ "description": "Digital power supply; connect decoupling capacitor to corresponding ground."+ },+ {+ "number": "6",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital ground."+ },+ {+ "number": "7",+ "name": "XTO",+ "type": "output",+ "description": "Crystal oscillator output."+ },+ {+ "number": "8",+ "name": "XTI",+ "type": "input",+ "description": "Crystal oscillator input (3.3-V CMOS level)."+ },+ {+ "number": "9",+ "name": "FL",+ "type": "passive",+ "description": "External filter pin of L-channel (optional)."+ },+ {+ "number": "10",+ "name": "FR",+ "type": "passive",+ "description": "External filter pin of R-channel (optional)."+ },+ {+ "number": "11",+ "name": "VCOM1",+ "type": "passive",+ "description": "Common voltage for ADC, DAC, and analog front-end (VCCA/2); decoupling capacitor must be connected to AGND."+ },+ {+ "number": "12",+ "name": "VCOM2",+ "type": "passive",+ "description": "Common voltage for headphone (VCCA/2); decoupling capacitor must be connected to AGND."+ },+ {+ "number": "13",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground."+ },+ {+ "number": "14",+ "name": "NC",+ "type": "unconnected",+ "description": "Not connected."+ },+ {+ "number": "15",+ "name": "VCCA",+ "type": "power_in",+ "description": "Analog power supply; connect decoupling capacitor to corresponding ground."+ },+ {+ "number": "16",+ "name": "VIN",+ "type": "power_in",+ "description": "ADC microphone input."+ },+ {+ "number": "17",+ "name": "MBIAS",+ "type": "output",+ "description": "Microphone bias output (0.75 VCCA)."+ },+ {+ "number": "18",+ "name": "VOUTL",+ "type": "output",+ "description": "Headphone output for L-channel."+ },+ {+ "number": "19",+ "name": "VCCL",+ "type": "power_in",+ "description": "Analog power supply for headphone amplifier of L-channel; connect decoupling capacitor to corresponding ground."+ },+ {+ "number": "20",+ "name": "HGND",+ "type": "power_in",+ "description": "Analog ground for headphone amplifier."+ },+ {+ "number": "21",+ "name": "VCCR",+ "type": "power_in",+ "description": "Analog power supply for headphone amplifier of R-channel; connect decoupling capacitor to corresponding ground."+ },+ {+ "number": "22",+ "name": "VOUTR",+ "type": "output",+ "description": "Headphone output for R-channel."+ },+ {+ "number": "23",+ "name": "MAMP",+ "type": "input",+ "description": "Microphone preamplifier gain control (LOW: Preamplifier off, HIGH: Preamplifier on = +20 dB); 3.3-V CMOS level."+ },+ {+ "number": "24",+ "name": "POWER",+ "type": "input",+ "description": "Power consumption declaration select pin (LOW: 100 mA, HIGH: 500 mA); 3.3-V CMOS level."+ },+ {+ "number": "25",+ "name": "PGND",+ "type": "power_in",+ "description": "Analog ground for microphone bias, microphone amplifier, and PGA."+ },+ {+ "number": "26",+ "name": "VCCP",+ "type": "power_in",+ "description": "Analog power supply for PLL; connect decoupling capacitor to corresponding ground."+ },+ {+ "number": "27",+ "name": "TEST1",+ "type": "input",+ "description": "Test pin; must be set to HIGH (3.3-V CMOS level)."+ },+ {+ "number": "28",+ "name": "TEST0",+ "type": "input",+ "description": "Test pin; must be set to LOW (3.3-V CMOS level)."+ },+ {+ "number": "29",+ "name": "SSPND",+ "type": "output",+ "description": "Suspend flag (LOW: Suspend, HIGH: Operational state)."+ },+ {+ "number": "30",+ "name": "MMUTE",+ "type": "input",+ "description": "Microphone mute control, active HIGH (LOW: Mute off, HIGH: Mute on); 3.3-V CMOS level with internal pulldown resistor."+ },+ {+ "number": "31",+ "name": "REC",+ "type": "output",+ "description": "Status output for record (LOW: Record, FLASH: Mute on record, HIGH: Stop); 5-V tolerant, open-drain."+ },+ {+ "number": "32",+ "name": "PLAY",+ "type": "output",+ "description": "Status output for playback (LOW: Playback, FLASH: Mute on playback, HIGH: Stop); 5-V tolerant, open-drain."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 8,+ "cost_usd": 0.1208,+ "at": "2026-10-01T01:03:13"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/pcm2912a",+ "pages": 37,+ "sha256": "61d048c255190975",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 32,+ "described": 32,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}