component
PCM1681TPWPRQ1
Public Made by Adomby adom
Texas Instruments ADCs/DACs - Special Purpose, HTSSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+65@@ -0,0 +1,65 @@+# PCM1681TPWPRQ1++**Texas Instruments** · ADCs/DACs - Special Purpose · HTSSOP-28++PCM1681TPWPRQ1 from Texas Instruments, in a HTSSOP-28. 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 | ZR1/ZR1/FMT0 | bidirectional | Zero-flag output 1 for SPI/I2C modes or format control input 0 for parallel H/W mode; Schmitt-trigger 5-V tolerant. |+| 2 | MS/ADR/FMT1 | input | Select input for SPI, address input for I2C, format control input 1 for H/W; Schmitt-trigger 5-V tolerant. |+| 3 | MC/SCL/DEMP | input | Shift clock input for SPI, serial clock input for I2C, de-emphasis control for H/W; Schmitt-trigger 5-V tolerant. |+| 4 | MD/SDA/MUTE | bidirectional | Serial data input for SPI, serial data input/output for I2C, mute control for H/W; Schmitt-trigger 5-V tolerant, open-drain output in I2C mode. |+| 5 | SCK | input | System clock input with frequency of 128, 192, 256, 384, 512, 768, or 1152 fS (1.024 to 36.864 MHz). |+| 6 | DATA1 | input | Serial audio data input for VOUT1 and VOUT2; Schmitt-trigger 5-V tolerant. |+| 7 | BCK | input | Shift clock input for serial audio data; Schmitt-trigger 5-V tolerant. |+| 8 | LRCK | input | Left/right clock input with frequency equal to sampling rate fS; 5-V tolerant. |+| 9 | VDD | power_in | Digital power supply, 3.3 V nominal (3.0 to 3.6 V operating range). |+| 10 | DGND | power_in | Digital ground. |+| 11 | DATA2 | input | Serial audio data input for VOUT3 and VOUT4; Schmitt-trigger 5-V tolerant. |+| 12 | DATA3 | input | Serial audio data input for VOUT5 and VOUT6; Schmitt-trigger 5-V tolerant. |+| 13 | DATA4 | input | Serial audio data input for VOUT7 and VOUT8; Schmitt-trigger 5-V tolerant. |+| 14 | MSEL | input | Mode control select for I2C (tied to DGND), SPI (tied to VDD), or parallel H/W (pull-up/pull-down for wide/narrow oversampling); VDD/2 biased quad-state input. |+| 15 | VOUT8 | output | Unbalanced audio output for right-channel of DATA4, 3.75 VPP typical into 5 kΩ load. |+| 16 | VOUT7 | output | Unbalanced audio output for left-channel of DATA4, 3.75 VPP typical into 5 kΩ load. |+| 17 | VCC1 | power_in | Analog power supply, 5 V nominal (4.5 to 5.5 V operating range). |+| 18 | AGND1 | power_in | Analog ground. |+| 19 | VOUT6 | output | Unbalanced audio output for right-channel of DATA3, 3.75 VPP typical into 5 kΩ load. |+| 20 | VOUT5 | output | Unbalanced audio output for left-channel of DATA3, 3.75 VPP typical into 5 kΩ load. |+| 21 | VOUT4 | output | Unbalanced audio output for right-channel of DATA2, 3.75 VPP typical into 5 kΩ load. |+| 22 | VOUT3 | output | Unbalanced audio output for left-channel of DATA2, 3.75 VPP typical into 5 kΩ load. |+| 23 | VCC2 | power_in | Analog power supply, 5 V nominal (4.5 to 5.5 V operating range). |+| 24 | AGND2 | power_in | Analog ground. |+| 25 | VCOM | output | Common voltage output biased to 0.486 VCC; requires 10-μF capacitor bypass to AGND. |+| 26 | VOUT2 | output | Unbalanced audio output for right-channel of DATA1, 3.75 VPP typical into 5 kΩ load. |+| 27 | VOUT1 | output | Unbalanced audio output for left-channel of DATA1, 3.75 VPP typical into 5 kΩ load. |+| 28 | ZR2 | output | Zero-flag output 2, detects silence on assigned channels; active-high by default. |+| 29 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-28 |+| Category | Data Acquisition |+| Pins | 29 |++## CAD (KiCad official)++- Symbol: `PCM1681TPWPRQ1`+- Footprint: `Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm`+- 3D model: HTSSOP-28 (KiCad packages3D, STEP)+- 3D model files: `pcm1681tpwprq1-etched.step` / `pcm1681tpwprq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pcm1681tpwprq1.step` / `pcm1681tpwprq1.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/pcm1681-q1) (46 pp, sha256 `a111585ea2f64b35`, 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/pcm1681tpwprq1-datasheet.pdf)
page.jsonadded+283@@ -0,0 +1,283 @@+{+ "slug": "pcm1681tpwprq1",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments ADCs/DACs - Special Purpose, HTSSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "data acquisition",+ "pcm1681tpwprq1",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "pcm1681tpwprq1.kicad_sym",+ "pcm1681tpwprq1.kicad_mod",+ "pcm1681tpwprq1.glb",+ "pcm1681tpwprq1.step",+ "pcm1681tpwprq1.lbr",+ "docs/hero.png",+ "docs/pcm1681tpwprq1-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "PCM1681TPWPRQ1",+ "manufacturer": "Texas Instruments",+ "package": "HTSSOP-28",+ "pin_count": 29,+ "category": "Data Acquisition",+ "subcategory": "ADCs/DACs - Special Purpose",+ "datasheet": "https://www.ti.com/cn/lit/gpn/pcm1681-q1",+ "parts": {+ "symbol": "pcm1681tpwprq1.kicad_sym",+ "footprint": "pcm1681tpwprq1.kicad_mod",+ "model_3d": "pcm1681tpwprq1-etched.glb",+ "model_3d_plain": "pcm1681tpwprq1.glb",+ "model_3d_step": "pcm1681tpwprq1-etched.step",+ "model_3d_step_plain": "pcm1681tpwprq1.step",+ "lbr": "pcm1681tpwprq1.lbr"+ },+ "distributor_links": {+ "lcsc": "C2667052",+ "digikey": "296-29414-2-ND",+ "mouser": "595-PCM1681TPWPRQ1"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T06:49:19Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-29414-2-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-PCM1681TPWPRQ1",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "ZR1/ZR1/FMT0",+ "type": "bidirectional",+ "description": "Zero-flag output 1 for SPI/I2C modes or format control input 0 for parallel H/W mode; Schmitt-trigger 5-V tolerant."+ },+ {+ "number": "2",+ "name": "MS/ADR/FMT1",+ "type": "input",+ "description": "Select input for SPI, address input for I2C, format control input 1 for H/W; Schmitt-trigger 5-V tolerant."+ },+ {+ "number": "3",+ "name": "MC/SCL/DEMP",+ "type": "input",+ "description": "Shift clock input for SPI, serial clock input for I2C, de-emphasis control for H/W; Schmitt-trigger 5-V tolerant."+ },+ {+ "number": "4",+ "name": "MD/SDA/MUTE",+ "type": "bidirectional",+ "description": "Serial data input for SPI, serial data input/output for I2C, mute control for H/W; Schmitt-trigger 5-V tolerant, open-drain output in I2C mode."+ },+ {+ "number": "5",+ "name": "SCK",+ "type": "input",+ "description": "System clock input with frequency of 128, 192, 256, 384, 512, 768, or 1152 fS (1.024 to 36.864 MHz)."+ },+ {+ "number": "6",+ "name": "DATA1",+ "type": "input",+ "description": "Serial audio data input for VOUT1 and VOUT2; Schmitt-trigger 5-V tolerant."+ },+ {+ "number": "7",+ "name": "BCK",+ "type": "input",+ "description": "Shift clock input for serial audio data; Schmitt-trigger 5-V tolerant."+ },+ {+ "number": "8",+ "name": "LRCK",+ "type": "input",+ "description": "Left/right clock input with frequency equal to sampling rate fS; 5-V tolerant."+ },+ {+ "number": "9",+ "name": "VDD",+ "type": "power_in",+ "description": "Digital power supply, 3.3 V nominal (3.0 to 3.6 V operating range)."+ },+ {+ "number": "10",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital ground."+ },+ {+ "number": "11",+ "name": "DATA2",+ "type": "input",+ "description": "Serial audio data input for VOUT3 and VOUT4; Schmitt-trigger 5-V tolerant."+ },+ {+ "number": "12",+ "name": "DATA3",+ "type": "input",+ "description": "Serial audio data input for VOUT5 and VOUT6; Schmitt-trigger 5-V tolerant."+ },+ {+ "number": "13",+ "name": "DATA4",+ "type": "input",+ "description": "Serial audio data input for VOUT7 and VOUT8; Schmitt-trigger 5-V tolerant."+ },+ {+ "number": "14",+ "name": "MSEL",+ "type": "input",+ "description": "Mode control select for I2C (tied to DGND), SPI (tied to VDD), or parallel H/W (pull-up/pull-down for wide/narrow oversampling); VDD/2 biased quad-state input."+ },+ {+ "number": "15",+ "name": "VOUT8",+ "type": "output",+ "description": "Unbalanced audio output for right-channel of DATA4, 3.75 VPP typical into 5 kΩ load."+ },+ {+ "number": "16",+ "name": "VOUT7",+ "type": "output",+ "description": "Unbalanced audio output for left-channel of DATA4, 3.75 VPP typical into 5 kΩ load."+ },+ {+ "number": "17",+ "name": "VCC1",+ "type": "power_in",+ "description": "Analog power supply, 5 V nominal (4.5 to 5.5 V operating range)."+ },+ {+ "number": "18",+ "name": "AGND1",+ "type": "power_in",+ "description": "Analog ground."+ },+ {+ "number": "19",+ "name": "VOUT6",+ "type": "output",+ "description": "Unbalanced audio output for right-channel of DATA3, 3.75 VPP typical into 5 kΩ load."+ },+ {+ "number": "20",+ "name": "VOUT5",+ "type": "output",+ "description": "Unbalanced audio output for left-channel of DATA3, 3.75 VPP typical into 5 kΩ load."+ },+ {+ "number": "21",+ "name": "VOUT4",+ "type": "output",+ "description": "Unbalanced audio output for right-channel of DATA2, 3.75 VPP typical into 5 kΩ load."+ },+ {+ "number": "22",+ "name": "VOUT3",+ "type": "output",+ "description": "Unbalanced audio output for left-channel of DATA2, 3.75 VPP typical into 5 kΩ load."+ },+ {+ "number": "23",+ "name": "VCC2",+ "type": "power_in",+ "description": "Analog power supply, 5 V nominal (4.5 to 5.5 V operating range)."+ },+ {+ "number": "24",+ "name": "AGND2",+ "type": "power_in",+ "description": "Analog ground."+ },+ {+ "number": "25",+ "name": "VCOM",+ "type": "output",+ "description": "Common voltage output biased to 0.486 VCC; requires 10-μF capacitor bypass to AGND."+ },+ {+ "number": "26",+ "name": "VOUT2",+ "type": "output",+ "description": "Unbalanced audio output for right-channel of DATA1, 3.75 VPP typical into 5 kΩ load."+ },+ {+ "number": "27",+ "name": "VOUT1",+ "type": "output",+ "description": "Unbalanced audio output for left-channel of DATA1, 3.75 VPP typical into 5 kΩ load."+ },+ {+ "number": "28",+ "name": "ZR2",+ "type": "output",+ "description": "Zero-flag output 2, detects silence on assigned channels; active-high by default."+ },+ {+ "number": "29",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "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": [+ "exposed pad 29 added from the footprint"+ ],+ "pages_sent": 12,+ "cost_usd": 0.1602,+ "at": "2026-10-01T06:49:04"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/pcm1681-q1",+ "pages": 46,+ "sha256": "a111585ea2f64b35",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 29,+ "described": 29,+ "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]"+ }+}