component
NS4248
Public Made by Adomby adom
Shenzhen Nsiway Tech Audio Power OpAmps, SOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownNS4248
Shenzhen Nsiway Tech · Audio Power OpAmps · SOP-16
NS4248 from Shenzhen Nsiway Tech, in a SOP-16. 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 | SD | input | Shutdown control, active high. Drive high to shut down the amplifier; drive low (or leave low) for normal operation. |
| 2 | GND | power_in | Power ground reference. |
| 3 | VoLP | output | Left channel Class-D output, positive side of the BTL speaker bridge. Connects to speaker (8Ω typical) via optional LC filter. |
| 4 | VDD | power_in | Power supply input, 2.2V to 5.25V operating range. Bypass with 10µF bulk + 0.1µF ceramic to GND. |
| 5 | VoLN | output | Left channel Class-D output, negative side of the BTL speaker bridge. In headphone mode, single-ended left channel output. |
| 6 | INLN | input | Left channel inverting audio input. AC-couple audio source through 0.1µF Ci in series with 20kΩ Ri to set gain (feedback via internal Rf). |
| 7 | GND | power_in | Power ground reference. |
| 8 | NC | unconnected | No connection. Leave floating. |
| 9 | NC | unconnected | No connection. Leave floating. |
| 10 | Bypass | passive | Internal mid-supply bias bypass node. Decouple to GND with 1µF ceramic capacitor (Cb) to filter reference noise for the input stage. |
| 11 | INRN | input | Right channel inverting audio input. AC-couple audio source through 0.1µF Ci in series with 20kΩ Ri to set gain (feedback via internal Rf). |
| 12 | VoRN | output | Right channel Class-D output, negative side of the BTL speaker bridge. In headphone mode, single-ended right channel output. |
| 13 | VDD | power_in | Power supply input (paralleled with pin 4), 2.2V to 5.25V. Tie both VDD pins together at the die-side bypass network. |
| 14 | VoRP | output | Right channel Class-D output, positive side of the BTL speaker bridge. Connects to speaker (8Ω typical) via optional LC filter. |
| 15 | GND | power_in | Ground reference. |
| 16 | HP-IN | input | Headphone mode control input. Drives the amplifier between BTL speaker mode and single-ended stereo headphone mode; typically fed from a headphone-jack detect switch through an R1/R2 divider (51kΩ/330kΩ in the reference schematic). VIH ≥ 1.4V, VIL ≤ 0.4V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Nsiway Tech |
| Package | SOP-16 |
| Category | Op-amp/Cmp |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
NS4248 - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOP-16 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen Nsiway Tech datasheet (14 pp, sha256
62358b4e793afab5, retrieved 2026-08-17, 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:
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).