The MAX9768 is a 10W mono Class D audio amplifier from TI that features high 77dB PSRR, low 0.08% THD+N, and SNR up to 97dB. It also supports 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 includes a 64‑step dual‑mode (analog or digitally programmable) volume control and mute function. It operates from a 4.5 V to 14 V single supply and can deliver up to 10 W into an 8 Ω speaker when powered at 14 V. The device features spread‑spectrum modulation for reduced EMI and can be synchronized to an external clock for multi‑amplifier systems.
Key specifications include high 77 dB PSRR, low 0.08 % THD+N, and up to 97 dB SNR. The MAX9768 is offered in a 24‑pin thin QFN‑EP package (4 mm × 4 mm × 0.8 mm) and is rated for operation over –40 °C to +85 °C. It also provides robust short‑circuit and thermal‑overload protection.
| Supply Voltage Range | 4.5 V to 14 V |
|---|---|
| Volume Steps | 64 steps |
| Power‑Supply Rejection Ratio | 77 dB |
| Total Harmonic Distortion + Noise | 0.08 % |
| Signal‑to‑Noise Ratio | 97 dB |
| Package Type | 24‑pin thin QFN‑EP (4 mm × 4 mm × 0.8 mm) |
| Operating Temperature Range | -40 °C to +85 °C |
| Input Impedance (volume control mode) | 100 MΩ |
The MAX9768 operates from a single supply of 4.5 V to 14 V.
It provides a 64‑step dual‑mode volume control, selectable as analog or digitally programmable.
Yes, it has built‑in short‑circuit and thermal‑overload protection.