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- 2026-09-29
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Naxinwei NS4890B 1W Mono Audio Power Amplifier User Manual
The NS4890B is a low‑power, mono audio power amplifier designed for portable electronic devices. It offers high PSRR, low noise and THD+N, a wide supply voltage range (2.2 V–5.25 V), and can operate without external output coupling capacitors. The chip includes a shutdown pin for low‑power sleep mode and is supplied in an MSOP‑8 package.
The manual covers functional description, key features, application areas, typical application circuits, absolute maximum ratings, electrical characteristics, pin assignments, reference performance data, application notes, and package dimensions. Detailed tables list electrical parameters, pin functions, and design recommendations for external components. This manual is written in Chinese.
Covers: Function Description · Key Features · Application Areas · Typical Application Circuit · Absolute Maximum Ratings · Electrical Characteristics
Latest 纳芯威 manuals
Naxinwei NS4890B 1W Mono Audio Power Amplifier User Manual
User Manual 19 pages · 3 MB · ZHThe Naxinwei NS4890B user manual provides specifications, pin descriptions, typical circuits, and application guidelines for this 1 W mono audio power…
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User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in 纳芯威 manuals
What is the maximum output power at 5 V?
The NS4890B can deliver 1.1 W into an 8 Ω load and 1.6 W into a 4 Ω load when powered at 5 V.
From: Naxinwei NS4890B 1W Mono Audio Power Amplifier User Manual
Does the NS4890B require an external output coupling capacitor?
No, the amplifier does not need an external output coupling capacitor.
From: Naxinwei NS4890B 1W Mono Audio Power Amplifier User Manual