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LKC1216QF
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LKWIC Clock Buffers, Drivers, Distributors, QFN-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+86@@ -0,0 +1,86 @@+# LKC1216QF++**LKWIC** · Clock Buffers, Drivers, Distributors · QFN-48(7x7)++LKC1216QF from LKWIC, in a QFN-48(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Ground connection. |+| 2 | IN_SEL | input | Input select pin for choosing between two clock inputs. |+| 3 | INP1 | input | Differential or single-ended input 1, positive terminal. |+| 4 | INN1 | input | Differential or single-ended input 1, negative terminal. |+| 5 | VAC_REF1 | output | Reference output voltage; recommend 0.1μF capacitor from this pin to GND if used. |+| 6 | VCC | power_in | 2.5V supply voltage input. |+| 7 | VCC | power_in | 2.5V supply voltage input. |+| 8 | VAC_REF0 | output | Reference output voltage; recommend 0.1μF capacitor from this pin to GND if used. |+| 9 | INN0 | input | Differential or single-ended input 0, negative terminal. |+| 10 | INP0 | input | Differential or single-ended input 0, positive terminal. |+| 11 | NC | unconnected | Not connected. |+| 12 | GND | power_in | Ground connection. |+| 13 | VCC | power_in | 2.5V supply voltage input. |+| 14 | OUTP0 | output | Differential LVDS output pair 0, positive terminal. |+| 15 | OUTN0 | output | Differential LVDS output pair 0, negative terminal. |+| 16 | OUTP1 | output | Differential LVDS output pair 1, positive terminal. |+| 17 | OUTN1 | output | Differential LVDS output pair 1, negative terminal. |+| 18 | OUTP2 | output | Differential LVDS output pair 2, positive terminal. |+| 19 | OUTN2 | output | Differential LVDS output pair 2, negative terminal. |+| 20 | OUTP3 | output | Differential LVDS output pair 3, positive terminal. |+| 21 | OUTN3 | output | Differential LVDS output pair 3, negative terminal. |+| 22 | OUTP4 | output | Differential LVDS output pair 4, positive terminal. |+| 23 | OUTN4 | output | Differential LVDS output pair 4, negative terminal. |+| 24 | VCC | power_in | 2.5V supply voltage input. |+| 25 | OUTP5 | output | Differential LVDS output pair 5, positive terminal. |+| 26 | OUTN5 | output | Differential LVDS output pair 5, negative terminal. |+| 27 | OUTP6 | output | Differential LVDS output pair 6, positive terminal. |+| 28 | OUTN6 | output | Differential LVDS output pair 6, negative terminal. |+| 29 | OUTP7 | output | Differential LVDS output pair 7, positive terminal. |+| 30 | OUTN7 | output | Differential LVDS output pair 7, negative terminal. |+| 31 | OUTP8 | output | Differential LVDS output pair 8, positive terminal. |+| 32 | OUTN8 | output | Differential LVDS output pair 8, negative terminal. |+| 33 | OUTP9 | output | Differential LVDS output pair 9, positive terminal. |+| 34 | OUTN9 | output | Differential LVDS output pair 9, negative terminal. |+| 35 | OUTP10 | output | Differential LVDS output pair 10, positive terminal. |+| 36 | OUTN10 | output | Differential LVDS output pair 10, negative terminal. |+| 37 | VCC | power_in | 2.5V supply voltage input. |+| 38 | OUTP11 | output | Differential LVDS output pair 11, positive terminal. |+| 39 | OUTN11 | output | Differential LVDS output pair 11, negative terminal. |+| 40 | OUTP12 | output | Differential LVDS output pair 12, positive terminal. |+| 41 | OUTN12 | output | Differential LVDS output pair 12, negative terminal. |+| 42 | OUTP13 | output | Differential LVDS output pair 13, positive terminal. |+| 43 | OUTN13 | output | Differential LVDS output pair 13, negative terminal. |+| 44 | OUTP14 | output | Differential LVDS output pair 14, positive terminal. |+| 45 | OUTN14 | output | Differential LVDS output pair 14, negative terminal. |+| 46 | OUTP15 | output | Differential LVDS output pair 15, positive terminal. |+| 47 | OUTN15 | output | Differential LVDS output pair 15, negative terminal. |+| 48 | VCC | power_in | 2.5V supply voltage input. |+| 49 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | LKWIC |+| Package | QFN-48(7x7) |+| Category | Clock/Timing |+| Pins | 49 |++## CAD (KiCad official)++- Symbol: `LKC1216QF`+- Footprint: `Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm`+- 3D model: QFN-48(7x7) (KiCad packages3D, STEP)+- 3D model files: `lkc1216qf-etched.step` / `lkc1216qf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lkc1216qf.step` / `lkc1216qf.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [LKWIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921390696710144) (13 pp, sha256 `a671d1d4404248c6`, retrieved 2026-09-21, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/lkc1216qf-datasheet.pdf)
page.jsonadded+389@@ -0,0 +1,389 @@+{+ "slug": "lkc1216qf",+ "version": "0.1.0",+ "type": "component",+ "description": "LKWIC Clock Buffers, Drivers, Distributors, QFN-48(7x7). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "clock-timing",+ "lkc1216qf",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lkc1216qf.kicad_sym",+ "lkc1216qf.kicad_mod",+ "lkc1216qf.glb",+ "lkc1216qf.step",+ "lkc1216qf.lbr",+ "docs/hero.png",+ "docs/lkc1216qf-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LKC1216QF",+ "manufacturer": "LKWIC",+ "package": "QFN-48(7x7)",+ "pin_count": 49,+ "category": "Clock/Timing",+ "subcategory": "Clock Buffers, Drivers, Distributors",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921390696710144",+ "parts": {+ "symbol": "lkc1216qf.kicad_sym",+ "footprint": "lkc1216qf.kicad_mod",+ "model_3d": "lkc1216qf-etched.glb",+ "model_3d_plain": "lkc1216qf.glb",+ "model_3d_step": "lkc1216qf-etched.step",+ "model_3d_step_plain": "lkc1216qf.step",+ "lbr": "lkc1216qf.lbr"+ },+ "distributor_links": {+ "lcsc": "C20626134"+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection."+ },+ {+ "number": "2",+ "name": "IN_SEL",+ "type": "input",+ "description": "Input select pin for choosing between two clock inputs."+ },+ {+ "number": "3",+ "name": "INP1",+ "type": "input",+ "description": "Differential or single-ended input 1, positive terminal."+ },+ {+ "number": "4",+ "name": "INN1",+ "type": "input",+ "description": "Differential or single-ended input 1, negative terminal."+ },+ {+ "number": "5",+ "name": "VAC_REF1",+ "type": "output",+ "description": "Reference output voltage; recommend 0.1μF capacitor from this pin to GND if used."+ },+ {+ "number": "6",+ "name": "VCC",+ "type": "power_in",+ "description": "2.5V supply voltage input."+ },+ {+ "number": "7",+ "name": "VCC",+ "type": "power_in",+ "description": "2.5V supply voltage input."+ },+ {+ "number": "8",+ "name": "VAC_REF0",+ "type": "output",+ "description": "Reference output voltage; recommend 0.1μF capacitor from this pin to GND if used."+ },+ {+ "number": "9",+ "name": "INN0",+ "type": "input",+ "description": "Differential or single-ended input 0, negative terminal."+ },+ {+ "number": "10",+ "name": "INP0",+ "type": "input",+ "description": "Differential or single-ended input 0, positive terminal."+ },+ {+ "number": "11",+ "name": "NC",+ "type": "unconnected",+ "description": "Not connected."+ },+ {+ "number": "12",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection."+ },+ {+ "number": "13",+ "name": "VCC",+ "type": "power_in",+ "description": "2.5V supply voltage input."+ },+ {+ "number": "14",+ "name": "OUTP0",+ "type": "output",+ "description": "Differential LVDS output pair 0, positive terminal."+ },+ {+ "number": "15",+ "name": "OUTN0",+ "type": "output",+ "description": "Differential LVDS output pair 0, negative terminal."+ },+ {+ "number": "16",+ "name": "OUTP1",+ "type": "output",+ "description": "Differential LVDS output pair 1, positive terminal."+ },+ {+ "number": "17",+ "name": "OUTN1",+ "type": "output",+ "description": "Differential LVDS output pair 1, negative terminal."+ },+ {+ "number": "18",+ "name": "OUTP2",+ "type": "output",+ "description": "Differential LVDS output pair 2, positive terminal."+ },+ {+ "number": "19",+ "name": "OUTN2",+ "type": "output",+ "description": "Differential LVDS output pair 2, negative terminal."+ },+ {+ "number": "20",+ "name": "OUTP3",+ "type": "output",+ "description": "Differential LVDS output pair 3, positive terminal."+ },+ {+ "number": "21",+ "name": "OUTN3",+ "type": "output",+ "description": "Differential LVDS output pair 3, negative terminal."+ },+ {+ "number": "22",+ "name": "OUTP4",+ "type": "output",+ "description": "Differential LVDS output pair 4, positive terminal."+ },+ {+ "number": "23",+ "name": "OUTN4",+ "type": "output",+ "description": "Differential LVDS output pair 4, negative terminal."+ },+ {+ "number": "24",+ "name": "VCC",+ "type": "power_in",+ "description": "2.5V supply voltage input."+ },+ {+ "number": "25",+ "name": "OUTP5",+ "type": "output",+ "description": "Differential LVDS output pair 5, positive terminal."+ },+ {+ "number": "26",+ "name": "OUTN5",+ "type": "output",+ "description": "Differential LVDS output pair 5, negative terminal."+ },+ {+ "number": "27",+ "name": "OUTP6",+ "type": "output",+ "description": "Differential LVDS output pair 6, positive terminal."+ },+ {+ "number": "28",+ "name": "OUTN6",+ "type": "output",+ "description": "Differential LVDS output pair 6, negative terminal."+ },+ {+ "number": "29",+ "name": "OUTP7",+ "type": "output",+ "description": "Differential LVDS output pair 7, positive terminal."+ },+ {+ "number": "30",+ "name": "OUTN7",+ "type": "output",+ "description": "Differential LVDS output pair 7, negative terminal."+ },+ {+ "number": "31",+ "name": "OUTP8",+ "type": "output",+ "description": "Differential LVDS output pair 8, positive terminal."+ },+ {+ "number": "32",+ "name": "OUTN8",+ "type": "output",+ "description": "Differential LVDS output pair 8, negative terminal."+ },+ {+ "number": "33",+ "name": "OUTP9",+ "type": "output",+ "description": "Differential LVDS output pair 9, positive terminal."+ },+ {+ "number": "34",+ "name": "OUTN9",+ "type": "output",+ "description": "Differential LVDS output pair 9, negative terminal."+ },+ {+ "number": "35",+ "name": "OUTP10",+ "type": "output",+ "description": "Differential LVDS output pair 10, positive terminal."+ },+ {+ "number": "36",+ "name": "OUTN10",+ "type": "output",+ "description": "Differential LVDS output pair 10, negative terminal."+ },+ {+ "number": "37",+ "name": "VCC",+ "type": "power_in",+ "description": "2.5V supply voltage input."+ },+ {+ "number": "38",+ "name": "OUTP11",+ "type": "output",+ "description": "Differential LVDS output pair 11, positive terminal."+ },+ {+ "number": "39",+ "name": "OUTN11",+ "type": "output",+ "description": "Differential LVDS output pair 11, negative terminal."+ },+ {+ "number": "40",+ "name": "OUTP12",+ "type": "output",+ "description": "Differential LVDS output pair 12, positive terminal."+ },+ {+ "number": "41",+ "name": "OUTN12",+ "type": "output",+ "description": "Differential LVDS output pair 12, negative terminal."+ },+ {+ "number": "42",+ "name": "OUTP13",+ "type": "output",+ "description": "Differential LVDS output pair 13, positive terminal."+ },+ {+ "number": "43",+ "name": "OUTN13",+ "type": "output",+ "description": "Differential LVDS output pair 13, negative terminal."+ },+ {+ "number": "44",+ "name": "OUTP14",+ "type": "output",+ "description": "Differential LVDS output pair 14, positive terminal."+ },+ {+ "number": "45",+ "name": "OUTN14",+ "type": "output",+ "description": "Differential LVDS output pair 14, negative terminal."+ },+ {+ "number": "46",+ "name": "OUTP15",+ "type": "output",+ "description": "Differential LVDS output pair 15, positive terminal."+ },+ {+ "number": "47",+ "name": "OUTN15",+ "type": "output",+ "description": "Differential LVDS output pair 15, negative terminal."+ },+ {+ "number": "48",+ "name": "VCC",+ "type": "power_in",+ "description": "2.5V supply voltage input."+ },+ {+ "number": "49",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "exposed pad 49 added from the footprint"+ ],+ "pages_sent": 13,+ "cost_usd": 0.3098,+ "at": "2026-09-21T17:04:33"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921390696710144",+ "pages": 13,+ "sha256": "a671d1d4404248c6",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 49,+ "described": 49,+ "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]"+ }+}