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LN4890MME-G
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NATLINEAR Audio Power OpAmps, MSOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# LN4890MME-G++**NATLINEAR** · Audio Power OpAmps · MSOP-8++LN4890MME-G from NATLINEAR, in a MSOP-8. 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 | SHUTDOWN | input | Chip enable input, active low. Drive low to place the amplifier in low-power shutdown mode (typ. 0.1 µA); drive high (VIH ≥ 1.2 V) for normal operation. VIL ≤ 0.4 V. |+| 2 | BYPASS | passive | Bypass capacitance input pin for the internal mid-supply bias reference. Connect a 1 µF ceramic capacitor from this pin to GND for pop/click suppression and PSRR performance. |+| 3 | +IN | input | Non-inverting (positive) differential audio input terminal to internal amplifier A1. Typically AC-coupled and referenced to BYPASS via an external resistor. |+| 4 | -IN | input | Inverting (negative) differential audio input terminal to internal amplifier A1. Combined with an external Rf feedback resistor sets the closed-loop gain (Av = -Rf/Rin). |+| 5 | VO1 | output | Negative BTL output terminal (inverted phase). Drives one side of an 8Ω speaker load; delivers up to 1W into 8Ω at 5V VDD in combination with VO2. |+| 6 | VDD | power_in | Positive supply pin. Operating range 2.2 V to 5.0 V (absolute max 5.0 V). Decouple with a 1 µF capacitor to GND close to the pin. |+| 7 | GND | power_in | Device ground reference and return for supply, bias, and output currents. |+| 8 | VO2 | output | Positive BTL output terminal (in-phase). Drives the opposite side of the 8Ω speaker load from VO1 to form the bridge-tied load; no output coupling capacitor required. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | NATLINEAR |+| Package | MSOP-8 |+| Category | Op-amp/Cmp |+| Pins | 8 |++## Ordering variants++- `LN4890MME-GMMA`+- `LN4890MME-GMMC`+- `LN4890MME-GMMD`+- `LN4890MME-GMA`+- `LN4890MME-GMC`+- `LN4890MME-GMD`++## CAD (KiCad official)++- Symbol: `LN4890MME-G`+- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`+- 3D model: MSOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [NATLINEAR datasheet](docs/ln4890mme-g-datasheet.pdf) (14 pp, sha256 `157f37ecb9961615`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/ln4890mme-g-datasheet.pdf)
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