NS4160

@@ -0,0 +1,43 @@+# NS4160++**Shenzhen Nsiway Tech** · Audio Power OpAmps · ESOP-8++NS4160 from Shenzhen Nsiway Tech, in a ESOP-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 | CTRL | input | Shutdown and Class-AB/Class-D mode selection control input via a one-wire pulse protocol. Logic low shuts down the amplifier (Vctrl=VDD puts the chip in shutdown with ~1 µA typical leakage). VIH ≥ 1.4V, VIL ≤ 0.4V; one-wire pulse high/low time 1-12 µs, shutdown assertion time ≥ 100 µs. |+| 2 | Bypass | passive | Internal reference-voltage bypass node. Connect an external decoupling capacitor (typ. 0.1 µF) from this pin to GND to filter the mid-supply reference and improve PSRR/noise performance. |+| 3 | INP | input | Positive (non-inverting) differential audio input to the input buffer. AC-coupled through a 0.1 µF capacitor with a 10 kΩ series/gain-setting resistor in the typical application. |+| 4 | INN | input | Negative (inverting) differential audio input to the input buffer. AC-coupled through a 0.1 µF capacitor with a 10 kΩ series/gain-setting resistor in the typical application. |+| 5 | VoN | output | Negative bridge-tied-load (BTL) speaker output from the output stage. Drives one terminal of the loudspeaker directly (filterless in Class-D mode); supports 2Ω/4Ω/8Ω loads. |+| 6 | VDD | power_in | Positive power supply input, 3.0 V to 5.5 V (absolute max 5.5 V). Decouple to GND with a 1 µF capacitor close to the pin. Typical quiescent current IDD ≈ 12 mA at 3.6 V and 18 mA at 5.0 V. |+| 7 | GND | power_in | Device ground return. Provides the reference for the supply, bypass capacitor, and speaker return currents; also acts as the thermal reference for the eSOP-8 package. |+| 8 | VoP | output | Positive bridge-tied-load (BTL) speaker output from the output stage. Drives the other terminal of the loudspeaker directly (filterless in Class-D mode); supports 2Ω/4Ω/8Ω loads. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shenzhen Nsiway Tech |+| Package | ESOP-8 |+| Category | Op-amp/Cmp |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `NS4160`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`+- 3D model: ESOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Shenzhen Nsiway Tech datasheet](docs/ns4160-datasheet.pdf) (11 pp, sha256 `d7dfcb07ef6f9aa8`, 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/ns4160-datasheet.pdf)

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