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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.

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NS4263B

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ns4263b.step / ns4263b.glb are 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF