The MAX9768 mono 10W Class D speaker amplifier provides high-quality, efficient audio power with an integrated volume control function. The MAX9768 features a 64-step dual-mode (analog or digitally programmable) volume control and mute function.
The MAX9768 is a 10 W mono Class‑D speaker amplifier that operates from a 4.5 V to 14 V single‑supply. It features a 64‑step dual‑mode (analog or digitally programmable) volume control, mute function, spread‑spectrum EMI reduction, and robust short‑circuit and thermal‑overload protection. The device is supplied in a 24‑pin thin QFN‑EP package and is specified over an extended temperature range of –40 °C to +85 °C.
The datasheet provides absolute maximum ratings, detailed electrical characteristics, performance graphs (efficiency, THD+N, SNR, PSRR), package information, and revision history. It also includes I²C timing specifications and pin configuration for integration into audio systems.
| Output Power | 10 W into 8 Ω |
|---|---|
| Supply Voltage Range | 4.5 V to 14 V |
| THD+N | 0.08 % (8 Ω, 6 W) |
| Signal‑to‑Noise Ratio | up to 97 dB |
| Power‑Supply Rejection Ratio | 77 dB |
| Turn‑On Time (MAX9768) | 220 ms |
The amplifier operates from a 4.5 V to 14 V single‑supply voltage.
It can deliver up to 10 W into an 8 Ω load with a 14 V supply.
The device achieves a THD+N of 0.08 % at 8 Ω and 6 W output.