The document introduces the MAX97000 audio subsystem. The subsystem includes a mono Class D speaker amplifier and a Class H headphone amplifier, as well as an analog DPST switch. The subsystem is designed for maximum efficiency, high gain, low power consumption and low distortion. It is suitable for applications such as cell phones and portable multimedia players.
The MAX97000 audio subsystem combines a mono Class‑D speaker amplifier with a stereo Class‑H headphone amplifier and an analog DPST switch, all controlled via a 2‑wire I²C interface. It operates from -40 °C to +85 °C and is offered in a 2 mm × 2 mm, 25‑bump WLP package.
Key features include independent volume and power control for speaker and headphone paths, configurable inputs (differential or single‑ended), a distortion limiter, and a filter‑less Class‑D output that delivers up to 725 mW to a speaker. Detailed electrical characteristics, timing diagrams, and layout recommendations are provided for optimal performance.
| Speaker Output Power | 725 mW |
|---|---|
| Headphone Output Power per Channel | 40 mW |
| Operating Temperature Range | -40 °C to +85 °C |
| Package | 2 mm × 2 mm, 25‑bump WLP |
All control is performed using the 2‑wire I²C interface.
The speaker amplifier can deliver up to 725 mW of output power.
It operates from –40 °C to +85 °C.