LM4890S

@@ -36,6 +36,20 @@ LM4890S from IDCHIP, in a MSOP-8. Pinout and pin descriptions extracted from the - Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm` - 3D model: MSOP-8 (KiCad packages3D, STEP) +## 3D model downloads++Two STEP files. Same geometry, different body top:++| File | Size | Use it when |+|---|---|---|+| [`lm4890s.step`](lm4890s.step) | 123 KB | You want the bare part, or you mark your own boards. |+| [`lm4890s-etched.step`](lm4890s-etched.step) | 1.8 MB | You want the part with `LM4890S` already on it. |++The marking in the etched file is real recessed geometry cut into the solid, not a+texture or a decal: 444 faces against 147 in the bare model. It+survives export, section views, and rendering in any CAD tool, and it drops straight+into KiCad or Fusion with no extra setup.+ ## Provenance  Data extracted from the manufacturer datasheet, not a distributor listing:

@@ -1,6 +1,6 @@ {   "slug": "lm4890s",-  "version": "0.1.0",+  "version": "0.2.0",   "type": "component",   "description": "IDCHIP Audio Power OpAmps, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",   "tags": [

@@ -4,7 +4,7 @@   "slug": "lm4890s",   "title": "LM4890S",   "brief": "IDCHIP Audio Power OpAmps, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",-  "version": "0.1.0",+  "version": "0.2.0",   "license": "CC-BY-SA-4.0",   "tags": [     "component",@@ -34,13 +34,13 @@         "number": "1",         "name": "SHUTDOWN",         "type": "input",-        "description": "Active-low shutdown control. Drive high (VIH \u2265 1.2V) for normal operation; drive low (VIL \u2264 0.4V) to place the amplifier into low-power shutdown mode (ISD \u2248 0.1\u00b5A typ)."+        "description": "Active-low shutdown control. Drive high (VIH ≥ 1.2V) for normal operation; drive low (VIL ≤ 0.4V) to place the amplifier into low-power shutdown mode (ISD ≈ 0.1µA typ)."       },       {         "number": "2",         "name": "BYPASS",         "type": "passive",-        "description": "Internal common-mode (half-supply) bias bypass node. Connect a bypass capacitor (typically 1\u00b5F) from this pin to GND to filter the internal mid-rail reference and improve PSRR / pop suppression."+        "description": "Internal common-mode (half-supply) bias bypass node. Connect a bypass capacitor (typically 1µF) from this pin to GND to filter the internal mid-rail reference and improve PSRR / pop suppression."       },       {         "number": "3",@@ -52,19 +52,19 @@         "number": "4",         "name": "-IN",         "type": "input",-        "description": "Inverting analog audio input. Sets the closed-loop gain via external RIN (typ 20k\u03a9) and Rf (typ 68k\u03a9); combines with CIN to form the input high-pass filter fC = 1/(2\u03c0\u00b7RIN\u00b7CIN)."+        "description": "Inverting analog audio input. Sets the closed-loop gain via external RIN (typ 20kΩ) and Rf (typ 68kΩ); combines with CIN to form the input high-pass filter fC = 1/(2π·RIN·CIN)."       },       {         "number": "5",         "name": "VO1",         "type": "output",-        "description": "BTL speaker output (negative/inverting side of the bridge, VOUT-). Connect one terminal of the 8\u03a9 speaker load between VO1 (pin 5) and VO2 (pin 8). No output coupling capacitor required."+        "description": "BTL speaker output (negative/inverting side of the bridge, VOUT-). Connect one terminal of the 8Ω speaker load between VO1 (pin 5) and VO2 (pin 8). No output coupling capacitor required."       },       {         "number": "6",         "name": "VDD",         "type": "power_in",-        "description": "Positive supply input, 2.2V to 5.5V operating range (5.5V absolute max). Decouple locally with CS (typ 1\u00b5F) to GND."+        "description": "Positive supply input, 2.2V to 5.5V operating range (5.5V absolute max). Decouple locally with CS (typ 1µF) to GND."       },       {         "number": "7",@@ -76,7 +76,7 @@         "number": "8",         "name": "VO2",         "type": "output",-        "description": "BTL speaker output (positive/non-inverting side of the bridge, VOUT+). Connect the other terminal of the 8\u03a9 speaker load here. No output coupling capacitor required."+        "description": "BTL speaker output (positive/non-inverting side of the bridge, VOUT+). Connect the other terminal of the 8Ω speaker load here. No output coupling capacitor required."       }     ],     "provenance": {@@ -150,9 +150,9 @@     "docs/hero.png",     "docs/lm4890s-datasheet.pdf",     "viewers/symbol.html",-    "viewers/footprint.html"+    "viewers/footprint.html",+    "pads.json"   ],-  "visibility": {-    "public": true-  }+  "visibility": "public",+  "description": "IDCHIP Audio Power OpAmps, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D." }\ No newline at end of file