MAX97001 is a mono audio subsystem that combines a mono speaker amplifier with a stereo headphone amplifier and an analog DPST switch. It features independent volume control and on/off control for the headphone and speaker amplifiers. The 4 inputs can be configured as 2 differential inputs or 4 single-ended inputs. The MAX97001 is designed for maximum efficiency, with a low-power Class D speaker amplifier and a dual-mode charge pump for the headphone amplifier. The speaker amplifier includes a distortion limiter to automatically reduce volume level during excessive clipping. Control is performed using the 2-wire I2C interface.
The MAX97001 audio subsystem integrates a high‑efficiency mono Class‑D speaker amplifier and a dual‑channel Class‑H headphone amplifier. Both amplifiers feature independent volume and on/off control, and the device supports configurable inputs as either two differential or four single‑ended channels.
All control is performed via a 2‑wire I²C interface, and the part operates over an extended temperature range of –40 °C to +85 °C in a 2 mm × 2.5 mm 20‑bump WLP package. It is suited for portable devices such as cell phones and multimedia players.
| Speaker Supply Voltage | 2.7 V to 5.5 V |
|---|---|
| Headphone Supply Voltage | 1.6 V to 2 V |
| Headphone Output Power (per channel) | 37 mW |
| Efficiency (600 mW output) | 87 % |
| Package Type | 2 mm × 2.5 mm 20‑bump WLP |
The part is offered in a 2 mm × 2.5 mm 20‑bump WLP package.