The manual details the NNSS88225588 integrated‑boost, low‑noise, distortion‑free 3 W×2 dual‑channel AB/D‑class audio amplifier.
The NNSS88225588 is an integrated‑boost audio power amplifier featuring ultra‑low noise, built‑in distortion‑free (NCN) protection and selectable AB/D class operation. It delivers 3 W per channel from a 3.7 V battery into a 4 Ω load and includes over‑current, over‑temperature and undervoltage safeguards.
The document provides functional descriptions, key specifications, pin assignments, typical application circuits, layout recommendations, test setups and package dimensions, guiding designers through implementation and performance optimization. This manual is written in Chinese.
| Output Power | 3 W ×2 per channel (VBAT=3.7 V, 4 Ω load) |
|---|---|
| Supply Voltage Range | 3.0 V – 5.25 V |
| THD | 0.05 % at 1 W, 4 Ω, Class D |
| Input Noise | 120 µV |
| Operating Temperature | -40 °C to 85 °C |
| Protection Features | Over‑current, over‑temperature, undervoltage |
| Package | eTSSOP‑24 |
It delivers 3 W per channel (3 W × 2) when powered from a 3.7 V battery into a 4 Ω load.
The AB/D class mode is selected by a control pin that toggles high or low voltage levels.
The device includes over‑current, over‑temperature and undervoltage protection circuits.
The chip is supplied in an eTSSOP‑24 surface‑mount package.