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NS4263B
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Shenzhen Nsiway Tech Audio Amplifiers, SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownNS4263B
Shenzhen Nsiway Tech · Audio Amplifiers · SOP-16
NS4263B from Shenzhen Nsiway Tech, in a SOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SD | input | Shutdown and AB/D mode-switch control: a single falling edge selects AB mode, two falling edges select D mode, and a high level held above 100 µs enters low-power shutdown (V_IH 1.2 V, V_IL 0.2 V, pulse widths 1-12 µs). |
| 2 | GND | power_in | Power ground. |
| 3 | VoLP | output | Left-channel positive loudspeaker output. |
| 4 | VDD | power_in | Power supply input, 3.0 V to 5.5 V (absolute maximum 6 V). |
| 5 | VoLN | output | Left-channel negative loudspeaker output. |
| 6 | INLN | input | Left-channel negative audio input. |
| 7 | GND | power_in | Power ground. |
| 8 | NCN | input | Anti-clipping (NCN) mode select: the pulse-count table selects NCN Modes 1-4 and a low level selects Mode 5 (NCN switching function, with the pin held low for more than 1 ms before a new control signal). |
| 9 | NC | unconnected | No function is given in the datasheet (listed as '-'); leave not connected. |
| 10 | VREF | power_in | Reference voltage pin; connect a 1 µF capacitor from this pin to GND. |
| 11 | INRN | input | Right-channel negative audio input. |
| 12 | VoRN | output | Right-channel negative loudspeaker output. |
| 13 | VDD | power_in | Power supply input, 3.0 V to 5.5 V (absolute maximum 6 V). |
| 14 | VoRP | output | Right-channel positive loudspeaker output. |
| 15 | GND | power_in | Power ground. |
| 16 | HP-IN | input | Headphone mode control: a logic high (V_IH 2.4 V minimum) selects single-ended headphone output, while the ~50 mV low level from the R1-R3 divider keeps bridge (speaker) mode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Nsiway Tech |
| Package | SOP-16 |
| Category | Amplifiers/Comparators |
| Pins | 16 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating voltage | 3 | 5.5 | V | 3 | |||
| Supply voltage | VDD | 3 | 5.5 | V | 4 | ||
| Input voltage | -0.3 | 6 | V | 3 | |||
| Storage temperature | -65 | 150 | °C | 3 | |||
| Operating temperature | -40 | 85 | °C | 3 | |||
| Junction temperature | 150 | °C | 3 | ||||
| HP logic control high-level input voltage | VIH | 2.4 | V | 4 | |||
| HP logic control low-level input voltage | VIL | 0.4 | V | 4 | |||
| SD logic control high-level input voltage | VIH | 1.2 | V | 4 | |||
| SD logic control low-level input voltage | VIL | 0.2 | V | 4 | |||
| SD high-level pulse time | THI | 1 | 12 | us | 4 | ||
| SD low-level pulse time | TLO | 1 | 12 | us | 4 | ||
| SD shutdown time, high level | TOFF | 100 | us | SD high level | 4 | ||
| Quiescent supply current | IDD | 20 | mA | VDD=3.6V, VIN=0V, No load | 4 | ||
| Quiescent supply current | IDD | 30 | mA | VDD=5.0V, VIN=0V, No load | 4 | ||
| Shutdown leakage current | ISD | 1 | µA | VSD=0V | 4 | ||
| ESD withstand voltage | 4000 | V | 3 | ||||
| Soldering temperature | 260 | °C | 3 | ||||
| Output offset voltage | VOS | 10 | mV | 4 | |||
| Output resistance | RO | 3 | K | 4 | |||
| Power supply rejection ratio | PSRR | -80 | dB | 217Hz | 4 | ||
| Power supply rejection ratio | PSRR | -72 | dB | 20KHz | 4 | ||
| Common-mode rejection ratio | CMRR | -70 | dB | 4 | |||
| Modulation frequency | fSW | 420 | kHz | VDD=3.0V to 5.25V | 4 | ||
| Headphone output power | PO | 150 | mW | THD+N=1%, f=1KHz, RL=16Ω | 4 | ||
| Headphone output power | PO | 80 | mW | THD+N=1%, f=1KHz, RL=32Ω | 4 | ||
| Crosstalk (stereo separation), headphone mode | XTALK | 75 | dB | RL=32Ω, Po=30mW | 4 | ||
| Total harmonic distortion plus noise, headphone mode | THD+N | 0.2 | % | RL=16Ω/32Ω, f=1KHz, PO=10mW | 4 | ||
| Signal-to-noise ratio, headphone mode | SNR | 78 | dB | RL=32Ω, Po=30mW | 4 | ||
| Speaker output power, Class AB | PO | 2.5 | W | THD=1%, f=1KHz, Class AB, RL=4Ω | 5 | ||
| Speaker output power, Class AB | PO | 1.4 | W | THD=1%, f=1KHz, Class AB, RL=8Ω | 5 | ||
| Speaker output power, Class AB | PO | 3.1 | W | THD=10%, f=1KHz, Class AB, RL=4Ω | 5 | ||
| Speaker output power, Class AB | PO | 1.78 | W | THD=10%, f=1KHz, Class AB, RL=8Ω | 5 | ||
| Speaker output power, Class D | PO | 2.55 | W | THD=1%, f=1KHz, Class D, RL=4Ω | 5 | ||
| Speaker output power, Class D | PO | 1.45 | W | THD=1%, f=1KHz, Class D, RL=8Ω | 5 | ||
| Speaker output power, Class D | PO | 3.1 | W | THD=10%, f=1KHz, Class D, RL=4Ω | 5 | ||
| Speaker output power, Class D | PO | 1.8 | W | THD=10%, f=1KHz, Class D, RL=8Ω | 5 | ||
| Total harmonic distortion plus noise, Class D | THD+N | 0.2 | % | f=1KHz, Class D, PO=0.5W, RL=4Ω/8Ω | 5 | ||
| Stereo isolation | 75 | dB | RL=4Ω, Po=1W | 5 | |||
| Signal-to-noise ratio, speaker mode | SNR | 78 | dB | RL=4Ω, Po=1W | 5 | ||
| Start-up time | Tst | 250 | ms | VDD=5V, BYPASS=1uF | 5 | ||
| Start-up time | Tst | 330 | ms | VDD=3V, BYPASS=1uF | 5 | ||
| Shutdown time | Tst | 52 | us | 5 | |||
| Thermal resistance, junction to case (SOP16) | θJC | 20 | °C/W | 3 | |||
| Thermal resistance, junction to ambient (SOP16) | θJA | 80 | °C/W | 3 |
CAD (KiCad official)
- Symbol:
NS4263B - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files:
ns4263b-etched.step/ns4263b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ns4263b.step/ns4263b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen Nsiway Tech datasheet (13 pp, sha256
776585313d645d7d, retrieved 2026-10-18, 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 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(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).